Search for Higgs-like particles produced in association with bottom quarks in proton-antiproton collisions

Aaltonen, T. (Division of High Energy Physics, Department of Physics, University of Helsinki, FIN-00014 Helsinki, Finland; Helsinki Institute of Physics, FIN-00014 Helsinki, Finland) ; Amerio, S. (Istituto Nazionale di Fisica Nucleare, Sezione di Padova, I-35131 Padova, Italy) (University of Padova, I-35131 Padova, Italy) ; Amidei, D. (University of Michigan, Ann Arbor, Michigan 48109, USA) ; Anastassov, A. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Annovi, A. (Laboratori Nazionali di Frascati, Istituto Nazionale di Fisica Nucleare, I-00044 Frascati, Italy) ; Antos, J. (Comenius University, 842 48 Bratislava, Slovakia; Institute of Experimental Physics, 040 01 Kosice, Slovakia) ; Apollinari, G. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Appel, J. A. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Arisawa, T. (Waseda University, Tokyo 169, Japan) ; Artikov, A. (Joint Institute for Nuclear Research, RU-141980 Dubna, Russia) ; Asaadi, J. (Mitchell Institute for Fundamental Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA) ; Ashmanskas, W. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Auerbach, B. (Argonne National Laboratory, Argonne, Illinois 60439, USA) ; Aurisano, A. (Mitchell Institute for Fundamental Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA) ; Azfar, F. (University of Oxford, Oxford OX1 3RH, United Kingdom) ; Badgett, W. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Bae, T. (Center for High Energy Physics: Kyungpook National University, Daegu 702-701, Korea; Seoul National University, Seoul 151-742, Korea; Sungkyunkwan University, Suwon 440-746, Korea; Korea Institute of Science and Technology Information, Daejeon 305-806, Korea; Chonnam National University, Gwangju 500-757, Korea; Chonbuk National University, Jeonju 561-756, Korea; Ewha Womans University, Seoul 120-750, Korea) ; Barbaro-Galtieri, A. (Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA) ; Barnes, V. E. (Purdue University, West Lafayette, Indiana 47907, USA) ; Barnett, B. A. (The Johns Hopkins University, Baltimore, Maryland 21218, USA) ; Barria, P. (Istituto Nazionale di Fisica Nucleare Pisa, I-56127 Pisa, Italy) (University of Siena, I-56127 Pisa, Italy) ; Bartos, P. (Comenius University, 842 48 Bratislava, Slovakia; Institute of Experimental Physics, 040 01 Kosice, Slovakia) ; Bauce, M. (Istituto Nazionale di Fisica Nucleare, Sezione di Padova, I-35131 Padova, Italy) (University of Padova, I-35131 Padova, Italy) ; Bedeschi, F. (Istituto Nazionale di Fisica Nucleare Pisa, I-56127 Pisa, Italy) ; Behari, S. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Bellettini, G. (Istituto Nazionale di Fisica Nucleare Pisa, I-56127 Pisa, Italy) (University of Pisa, I-56127 Pisa, Italy) ; Bellinger, J. (University of Wisconsin-Madison, Madison, Wisconsin 53706, USA) ; Benjamin, D. (Duke University, Durham, North Carolina 27708, USA) ; Beretvas, A. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Bhatti, A. (The Rockefeller University, New York, New York 10065, USA) ; Bland, K. R. (Baylor University, Waco, Texas 76798, USA) ; Blumenfeld, B. (The Johns Hopkins University, Baltimore, Maryland 21218, USA) ; Bocci, A. (Duke University, Durham, North Carolina 27708, USA) ; Bodek, A. (University of Rochester, Rochester, New York 14627, USA) ; Bortoletto, D. (Purdue University, West Lafayette, Indiana 47907, USA) ; Boudreau, J. (University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA) ; Boveia, A. (Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA) ; Brigliadori, L. (Istituto Nazionale di Fisica Nucleare Bologna, I-40127 Bologna, Italy) (University of Bologna, I-40127 Bologna, Italy) ; Bromberg, C. (Michigan State University, East Lansing, Michigan 48824, USA) ; Brucken, E. (Division of High Energy Physics, Department of Physics, University of Helsinki, FIN-00014 Helsinki, Finland; Helsinki Institute of Physics, FIN-00014 Helsinki, Finland) ; Budagov, J. (Joint Institute for Nuclear Research, RU-141980 Dubna, Russia) ; Budd, H. S. (University of Rochester, Rochester, New York 14627, USA) ; Burkett, K. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Busetto, G. (Istituto Nazionale di Fisica Nucleare, Sezione di Padova, I-35131 Padova, Italy) (University of Padova, I-35131 Padova, Italy) ; Bussey, P. (Glasgow University, Glasgow G12 8QQ, United Kingdom) ; Butti, P. (Istituto Nazionale di Fisica Nucleare Pisa, I-56127 Pisa, Italy) (University of Pisa, I-56127 Pisa, Italy) ; Buzatu, A. (Glasgow University, Glasgow G12 8QQ, United Kingdom) ; Calamba, A. (Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA) ; Camarda, S. (Institut de Fisica d’Altes Energies, ICREA, Universitat Autonoma de Barcelona, E-08193 Bellaterra (Barcelona), Spain) ; Campanelli, M. (University College London, London WC1E 6BT, United Kingdom) ; Canelli, F. (Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA) ; Carls, B. (University of Illinois, Urbana, Illinois 61801, USA) ; Carlsmith, D. (University of Wisconsin-Madison, Madison, Wisconsin 53706, USA) ; Carosi, R. (Istituto Nazionale di Fisica Nucleare Pisa, I-56127 Pisa, Italy) ; Carrillo, S. (University of Florida, Gainesville, Florida 32611, USA) ; Casal, B. (Instituto de Fisica de Cantabria, CSIC-University of Cantabria, 39005 Santander, Spain) ; Casarsa, M. (Istituto Nazionale di Fisica Nucleare Trieste, I-33100 Udine, Italy) ; Castro, A. (Istituto Nazionale di Fisica Nucleare Bologna, I-40127 Bologna, Italy) (University of Bologna, I-40127 Bologna, Italy) ; Catastini, P. (Harvard University, Cambridge, Massachusetts 02138, USA) ; Cauz, D. (Istituto Nazionale di Fisica Nucleare Trieste, I-33100 Udine, Italy) (Gruppo Collegato di Udine, I-33100 Udine, Italy) (University of Udine, I-33100 Udine, Italy) ; Cavaliere, V. (University of Illinois, Urbana, Illinois 61801, USA) ; Cerri, A. (Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA) ; Cerrito, L. (University College London, London WC1E 6BT, United Kingdom) ; Chen, Y. C. (Institute of Physics, Academia Sinica, Taipei, Taiwan 11529, Republic of China) ; Chertok, M. (University of California, Davis, Davis, California 95616, USA) ; Chiarelli, G. (Istituto Nazionale di Fisica Nucleare Pisa, I-56127 Pisa, Italy) ; Chlachidze, G. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Cho, K. (Center for High Energy Physics: Kyungpook National University, Daegu 702-701, Korea; Seoul National University, Seoul 151-742, Korea; Sungkyunkwan University, Suwon 440-746, Korea; Korea Institute of Science and Technology Information, Daejeon 305-806, Korea; Chonnam National University, Gwangju 500-757, Korea; Chonbuk National University, Jeonju 561-756, Korea; Ewha Womans University, Seoul 120-750, Korea) ; Chokheli, D. (Joint Institute for Nuclear Research, RU-141980 Dubna, Russia) ; Clark, A. (University of Geneva, CH-1211 Geneva 4, Switzerland) ; Clarke, C. (Wayne State University, Detroit, Michigan 48201, USA) ; Convery, M. E. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Conway, J. (University of California, Davis, Davis, California 95616, USA) ; Corbo, M. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Cordelli, M. (Laboratori Nazionali di Frascati, Istituto Nazionale di Fisica Nucleare, I-00044 Frascati, Italy) ; Cox, C. A. (University of California, Davis, Davis, California 95616, USA) ; Cox, D. J. (University of California, Davis, Davis, California 95616, USA) ; Cremonesi, M. (Istituto Nazionale di Fisica Nucleare Pisa, I-56127 Pisa, Italy) ; Cruz, D. (Mitchell Institute for Fundamental Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA) ; Cuevas, J. (Instituto de Fisica de Cantabria, CSIC-University of Cantabria, 39005 Santander, Spain) ; Culbertson, R. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; d’Ascenzo, N. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Datta, M. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; de Barbaro, P. (University of Rochester, Rochester, New York 14627, USA) ; Demortier, L. (The Rockefeller University, New York, New York 10065, USA) ; Deninno, M. (Istituto Nazionale di Fisica Nucleare Bologna, I-40127 Bologna, Italy) ; D’Errico, M. (Istituto Nazionale di Fisica Nucleare, Sezione di Padova, I-35131 Padova, Italy) (University of Padova, I-35131 Padova, Italy) ; Devoto, F. (Division of High Energy Physics, Department of Physics, University of Helsinki, FIN-00014 Helsinki, Finland; Helsinki Institute of Physics, FIN-00014 Helsinki, Finland) ; Di Canto, A. (Istituto Nazionale di Fisica Nucleare Pisa, I-56127 Pisa, Italy) (University of Pisa, I-56127 Pisa, Italy) ; Di Ruzza, B. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Dittmann, J. R. (Baylor University, Waco, Texas 76798, USA) ; Donati, S. (Istituto Nazionale di Fisica Nucleare Pisa, I-56127 Pisa, Italy) (University of Pisa, I-56127 Pisa, Italy) ; D’Onofrio, M. (University of Liverpool, Liverpool L69 7ZE, United Kingdom) ; Dorigo, M. (Istituto Nazionale di Fisica Nucleare Trieste, I-33100 Udine, Italy) (University of Trieste, I-34127 Trieste, Italy) ; Driutti, A. (Istituto Nazionale di Fisica Nucleare Trieste, I-33100 Udine, Italy) (Gruppo Collegato di Udine, I-33100 Udine, Italy) (University of Udine, I-33100 Udine, Italy) ; Ebina, K. (Waseda University, Tokyo 169, Japan) ; Edgar, R. (University of Michigan, Ann Arbor, Michigan 48109, USA) ; Elagin, A. (Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA) ; Erbacher, R. (University of California, Davis, Davis, California 95616, USA) ; Errede, S. (University of Illinois, Urbana, Illinois 61801, USA) ; Esham, B. (University of Illinois, Urbana, Illinois 61801, USA) ; Farrington, S. (University of Oxford, Oxford OX1 3RH, United Kingdom) ; Fernández Ramos, J. P. (Centro de Investigaciones Energeticas Medioambientales y Tecnologicas, E-28040 Madrid, Spain) ; Field, R. (University of Florida, Gainesville, Florida 32611, USA) ; Flanagan, G. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Forrest, R. (University of California, Davis, Davis, California 95616, USA) ; Franklin, M. (Harvard University, Cambridge, Massachusetts 02138, USA) ; Freeman, J. C. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Frisch, H. (Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA) ; Funakoshi, Y. (Waseda University, Tokyo 169, Japan) ; Galloni, C. (Istituto Nazionale di Fisica Nucleare Pisa, I-56127 Pisa, Italy) (University of Pisa, I-56127 Pisa, Italy) ; Garfinkel, A. F. (Purdue University, West Lafayette, Indiana 47907, USA) ; Garosi, P. (Istituto Nazionale di Fisica Nucleare Pisa, I-56127 Pisa, Italy) (University of Siena, I-56127 Pisa, Italy) ; Gerberich, H. (University of Illinois, Urbana, Illinois 61801, USA) ; Gerchtein, E. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Giagu, S. (Istituto Nazionale di Fisica Nucleare, Sezione di Roma 1, I-00185 Roma, Italy) ; Giakoumopoulou, V. (University of Athens, 157 71 Athens, Greece) ; Gibson, K. (University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA) ; Ginsburg, C. M. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Giokaris, N. (University of Athens, 157 71 Athens, Greece) ; Giromini, P. (Laboratori Nazionali di Frascati, Istituto Nazionale di Fisica Nucleare, I-00044 Frascati, Italy) ; Glagolev, V. (Joint Institute for Nuclear Research, RU-141980 Dubna, Russia) ; Glenzinski, D. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Gold, M. (University of New Mexico, Albuquerque, New Mexico 87131, USA) ; Goldin, D. (Mitchell Institute for Fundamental Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA) ; Golossanov, A. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Gomez, G. (Instituto de Fisica de Cantabria, CSIC-University of Cantabria, 39005 Santander, Spain) ; Gomez-Ceballos, G. (Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA) ; Goncharov, M. (Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA) ; González López, O. (Centro de Investigaciones Energeticas Medioambientales y Tecnologicas, E-28040 Madrid, Spain) ; Gorelov, I. (University of New Mexico, Albuquerque, New Mexico 87131, USA) ; Goshaw, A. T. (Duke University, Durham, North Carolina 27708, USA) ; Goulianos, K. (The Rockefeller University, New York, New York 10065, USA) ; Gramellini, E. (Istituto Nazionale di Fisica Nucleare Bologna, I-40127 Bologna, Italy) ; Grosso-Pilcher, C. (Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA) ; Guimaraes da Costa, J. (Harvard University, Cambridge, Massachusetts 02138, USA) ; Hahn, S. R. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Han, J. Y. (University of Rochester, Rochester, New York 14627, USA) ; Happacher, F. (Laboratori Nazionali di Frascati, Istituto Nazionale di Fisica Nucleare, I-00044 Frascati, Italy) ; Hara, K. (University of Tsukuba, Tsukuba, Ibaraki 305, Japan) ; Hare, M. (Tufts University, Medford, Massachusetts 02155, USA) ; Harr, R. F. (Wayne State University, Detroit, Michigan 48201, USA) ; Harrington-Taber, T. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Hatakeyama, K. (Baylor University, Waco, Texas 76798, USA) ; Hays, C. (University of Oxford, Oxford OX1 3RH, United Kingdom) ; Heinrich, J. (University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA) ; Herndon, M. (University of Wisconsin-Madison, Madison, Wisconsin 53706, USA) ; Hocker, A. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Hong, Z. (Mitchell Institute for Fundamental Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA) ; Hopkins, W. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Hou, S. (Institute of Physics, Academia Sinica, Taipei, Taiwan 11529, Republic of China) ; Hughes, R. E. (The Ohio State University, Columbus, Ohio 43210, USA) ; Husemann, U. (Yale University, New Haven, Connecticut 06520, USA) ; Hussein, M. (Michigan State University, East Lansing, Michigan 48824, USA) ; Huston, J. (Michigan State University, East Lansing, Michigan 48824, USA) ; Introzzi, G. (Istituto Nazionale di Fisica Nucleare Pisa, I-56127 Pisa, Italy) (INFN Pavia, I-27100 Pavia, Italy) (University of Pavia, I-27100 Pavia, Italy) ; Iori, M. (Istituto Nazionale di Fisica Nucleare, Sezione di Roma 1, I-00185 Roma, Italy) (Sapienza Università di Roma, I-00185 Roma, Italy) ; Ivanov, A. (University of California, Davis, Davis, California 95616, USA) ; James, E. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Jang, D. (Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA) ; Jayatilaka, B. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Jeon, E. J. (Center for High Energy Physics: Kyungpook National University, Daegu 702-701, Korea; Seoul National University, Seoul 151-742, Korea; Sungkyunkwan University, Suwon 440-746, Korea; Korea Institute of Science and Technology Information, Daejeon 305-806, Korea; Chonnam National University, Gwangju 500-757, Korea; Chonbuk National University, Jeonju 561-756, Korea; Ewha Womans University, Seoul 120-750, Korea) ; Jindariani, S. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Jones, M. (Purdue University, West Lafayette, Indiana 47907, USA) ; Joo, K. K. (Center for High Energy Physics: Kyungpook National University, Daegu 702-701, Korea; Seoul National University, Seoul 151-742, Korea; Sungkyunkwan University, Suwon 440-746, Korea; Korea Institute of Science and Technology Information, Daejeon 305-806, Korea; Chonnam National University, Gwangju 500-757, Korea; Chonbuk National University, Jeonju 561-756, Korea; Ewha Womans University, Seoul 120-750, Korea) ; Jun, S. Y. (Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA) ; Junk, T. R. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Kambeitz, M. (Institut für Experimentelle Kernphysik, Karlsruhe Institute of Technology, D-76131 Karlsruhe, Germany) ; Kamon, T. (Center for High Energy Physics: Kyungpook National University, Daegu 702-701, Korea; Seoul National University, Seoul 151-742, Korea; Sungkyunkwan University, Suwon 440-746, Korea; Korea Institute of Science and Technology Information, Daejeon 305-806, Korea; Chonnam National University, Gwangju 500-757, Korea; Chonbuk National University, Jeonju 561-756, Korea; Ewha Womans University, Seoul 120-750, Korea) (Mitchell Institute for Fundamental Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA) ; Karchin, P. E. (Wayne State University, Detroit, Michigan 48201, USA) ; Kasmi, A. (Baylor University, Waco, Texas 76798, USA) ; Kato, Y. (Osaka City University, Osaka 558-8585, Japan) ; Ketchum, W. (Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA) ; Keung, J. (University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA) ; Kilminster, B. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Kim, D. H. (Center for High Energy Physics: Kyungpook National University, Daegu 702-701, Korea; Seoul National University, Seoul 151-742, Korea; Sungkyunkwan University, Suwon 440-746, Korea; Korea Institute of Science and Technology Information, Daejeon 305-806, Korea; Chonnam National University, Gwangju 500-757, Korea; Chonbuk National University, Jeonju 561-756, Korea; Ewha Womans University, Seoul 120-750, Korea) ; Kim, H. S. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Kim, J. E. (Center for High Energy Physics: Kyungpook National University, Daegu 702-701, Korea; Seoul National University, Seoul 151-742, Korea; Sungkyunkwan University, Suwon 440-746, Korea; Korea Institute of Science and Technology Information, Daejeon 305-806, Korea; Chonnam National University, Gwangju 500-757, Korea; Chonbuk National University, Jeonju 561-756, Korea; Ewha Womans University, Seoul 120-750, Korea) ; Kim, M. J. (Laboratori Nazionali di Frascati, Istituto Nazionale di Fisica Nucleare, I-00044 Frascati, Italy) ; Kim, S. H. (University of Tsukuba, Tsukuba, Ibaraki 305, Japan) ; Kim, S. B. (Center for High Energy Physics: Kyungpook National University, Daegu 702-701, Korea; Seoul National University, Seoul 151-742, Korea; Sungkyunkwan University, Suwon 440-746, Korea; Korea Institute of Science and Technology Information, Daejeon 305-806, Korea; Chonnam National University, Gwangju 500-757, Korea; Chonbuk National University, Jeonju 561-756, Korea; Ewha Womans University, Seoul 120-750, Korea) ; Kim, Y. J. (Center for High Energy Physics: Kyungpook National University, Daegu 702-701, Korea; Seoul National University, Seoul 151-742, Korea; Sungkyunkwan University, Suwon 440-746, Korea; Korea Institute of Science and Technology Information, Daejeon 305-806, Korea; Chonnam National University, Gwangju 500-757, Korea; Chonbuk National University, Jeonju 561-756, Korea; Ewha Womans University, Seoul 120-750, Korea) ; Kim, Y. K. (Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA) ; Kimura, N. (Waseda University, Tokyo 169, Japan) ; Kirby, M. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Kondo, K. (Waseda University, Tokyo 169, Japan) ; Kong, D. J. (Center for High Energy Physics: Kyungpook National University, Daegu 702-701, Korea; Seoul National University, Seoul 151-742, Korea; Sungkyunkwan University, Suwon 440-746, Korea; Korea Institute of Science and Technology Information, Daejeon 305-806, Korea; Chonnam National University, Gwangju 500-757, Korea; Chonbuk National University, Jeonju 561-756, Korea; Ewha Womans University, Seoul 120-750, Korea) ; Konigsberg, J. (University of Florida, Gainesville, Florida 32611, USA) ; Kotwal, A. V. (Duke University, Durham, North Carolina 27708, USA) ; Kreps, M. (Institut für Experimentelle Kernphysik, Karlsruhe Institute of Technology, D-76131 Karlsruhe, Germany) ; Kroll, J. (University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA) ; Kruse, M. (Duke University, Durham, North Carolina 27708, USA) ; Kuhr, T. (Institut für Experimentelle Kernphysik, Karlsruhe Institute of Technology, D-76131 Karlsruhe, Germany) ; Kurata, M. (University of Tsukuba, Tsukuba, Ibaraki 305, Japan) ; Laasanen, A. T. (Purdue University, West Lafayette, Indiana 47907, USA) ; Lammel, S. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Lancaster, M. (University College London, London WC1E 6BT, United Kingdom) ; Lannon, K. (The Ohio State University, Columbus, Ohio 43210, USA) ; Latino, G. (Istituto Nazionale di Fisica Nucleare Pisa, I-56127 Pisa, Italy) (University of Siena, I-56127 Pisa, Italy) ; Lee, H. S. (Center for High Energy Physics: Kyungpook National University, Daegu 702-701, Korea; Seoul National University, Seoul 151-742, Korea; Sungkyunkwan University, Suwon 440-746, Korea; Korea Institute of Science and Technology Information, Daejeon 305-806, Korea; Chonnam National University, Gwangju 500-757, Korea; Chonbuk National University, Jeonju 561-756, Korea; Ewha Womans University, Seoul 120-750, Korea) ; Lee, J. S. (Center for High Energy Physics: Kyungpook National University, Daegu 702-701, Korea; Seoul National University, Seoul 151-742, Korea; Sungkyunkwan University, Suwon 440-746, Korea; Korea Institute of Science and Technology Information, Daejeon 305-806, Korea; Chonnam National University, Gwangju 500-757, Korea; Chonbuk National University, Jeonju 561-756, Korea; Ewha Womans University, Seoul 120-750, Korea) ; Leo, S. (University of Illinois, Urbana, Illinois 61801, USA) ; Leone, S. (Istituto Nazionale di Fisica Nucleare Pisa, I-56127 Pisa, Italy) ; Lewis, J. D. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Limosani, A. (Duke University, Durham, North Carolina 27708, USA) ; Lipeles, E. (University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA) ; Lister, A. (University of Geneva, CH-1211 Geneva 4, Switzerland) ; Liu, Q. (Purdue University, West Lafayette, Indiana 47907, USA) ; Liu, T. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Lockwitz, S. (Yale University, New Haven, Connecticut 06520, USA) ; Loginov, A. (Yale University, New Haven, Connecticut 06520, USA) ; Lucchesi, D. (Istituto Nazionale di Fisica Nucleare, Sezione di Padova, I-35131 Padova, Italy) (University of Padova, I-35131 Padova, Italy) ; Lucà, A. (Laboratori Nazionali di Frascati, Istituto Nazionale di Fisica Nucleare, I-00044 Frascati, Italy) (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Lueck, J. (Institut für Experimentelle Kernphysik, Karlsruhe Institute of Technology, D-76131 Karlsruhe, Germany) ; Lujan, P. (Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA) ; Lukens, P. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Lungu, G. (The Rockefeller University, New York, New York 10065, USA) ; Lys, J. (Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA) ; Lysak, R. (Comenius University, 842 48 Bratislava, Slovakia; Institute of Experimental Physics, 040 01 Kosice, Slovakia) ; Madrak, R. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Maestro, P. (Istituto Nazionale di Fisica Nucleare Pisa, I-56127 Pisa, Italy) (University of Siena, I-56127 Pisa, Italy) ; Malik, S. (The Rockefeller University, New York, New York 10065, USA) ; Manca, G. (University of Liverpool, Liverpool L69 7ZE, United Kingdom) ; Manousakis-Katsikakis, A. (University of Athens, 157 71 Athens, Greece) ; Marchese, L. (Istituto Nazionale di Fisica Nucleare Bologna, I-40127 Bologna, Italy) ; Margaroli, F. (Istituto Nazionale di Fisica Nucleare, Sezione di Roma 1, I-00185 Roma, Italy) ; Marino, P. (Istituto Nazionale di Fisica Nucleare Pisa, I-56127 Pisa, Italy) (Scuola Normale Superiore, I-56127 Pisa, Italy) ; Matera, K. (University of Illinois, Urbana, Illinois 61801, USA) ; Mattson, M. E. (Wayne State University, Detroit, Michigan 48201, USA) ; Mazzacane, A. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Mazzanti, P. (Istituto Nazionale di Fisica Nucleare Bologna, I-40127 Bologna, Italy) ; McNulty, R. (University of Liverpool, Liverpool L69 7ZE, United Kingdom) ; Mehta, A. (University of Liverpool, Liverpool L69 7ZE, United Kingdom) ; Mehtala, P. (Division of High Energy Physics, Department of Physics, University of Helsinki, FIN-00014 Helsinki, Finland; Helsinki Institute of Physics, FIN-00014 Helsinki, Finland) ; Mesropian, C. (The Rockefeller University, New York, New York 10065, USA) ; Miao, T. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Michielin, E. (Istituto Nazionale di Fisica Nucleare, Sezione di Padova, I-35131 Padova, Italy) (University of Padova, I-35131 Padova, Italy) ; Mietlicki, D. (University of Michigan, Ann Arbor, Michigan 48109, USA) ; Mitra, A. (Institute of Physics, Academia Sinica, Taipei, Taiwan 11529, Republic of China) ; Miyake, H. (University of Tsukuba, Tsukuba, Ibaraki 305, Japan) ; Moed, S. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Moggi, N. (Istituto Nazionale di Fisica Nucleare Bologna, I-40127 Bologna, Italy) ; Moon, C. S. (Center for High Energy Physics: Kyungpook National University, Daegu 702-701, Korea; Seoul National University, Seoul 151-742, Korea; Sungkyunkwan University, Suwon 440-746, Korea; Korea Institute of Science and Technology Information, Daejeon 305-806, Korea; Chonnam National University, Gwangju 500-757, Korea; Chonbuk National University, Jeonju 561-756, Korea; Ewha Womans University, Seoul 120-750, Korea) ; Moore, R. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Morello, M. J. (Istituto Nazionale di Fisica Nucleare Pisa, I-56127 Pisa, Italy) (Scuola Normale Superiore, I-56127 Pisa, Italy) ; Mukherjee, A. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Muller, Th. (Institut für Experimentelle Kernphysik, Karlsruhe Institute of Technology, D-76131 Karlsruhe, Germany) ; Murat, P. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Mussini, M. (Istituto Nazionale di Fisica Nucleare Bologna, I-40127 Bologna, Italy) (University of Bologna, I-40127 Bologna, Italy) ; Nachtman, J. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Nagai, Y. (University of Tsukuba, Tsukuba, Ibaraki 305, Japan) ; Naganoma, J. (Waseda University, Tokyo 169, Japan) ; Nakano, I. (Okayama University, Okayama 700-8530, Japan) ; Napier, A. (Tufts University, Medford, Massachusetts 02155, USA) ; Nett, J. (Mitchell Institute for Fundamental Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA) ; Nigmanov, T. (University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA) ; Nodulman, L. (Argonne National Laboratory, Argonne, Illinois 60439, USA) ; Noh, S. Y. (Center for High Energy Physics: Kyungpook National University, Daegu 702-701, Korea; Seoul National University, Seoul 151-742, Korea; Sungkyunkwan University, Suwon 440-746, Korea; Korea Institute of Science and Technology Information, Daejeon 305-806, Korea; Chonnam National University, Gwangju 500-757, Korea; Chonbuk National University, Jeonju 561-756, Korea; Ewha Womans University, Seoul 120-750, Korea) ; Norniella, O. (University of Illinois, Urbana, Illinois 61801, USA) ; Oakes, L. (University of Oxford, Oxford OX1 3RH, United Kingdom) ; Oh, S. H. (Duke University, Durham, North Carolina 27708, USA) ; Oh, Y. D. (Center for High Energy Physics: Kyungpook National University, Daegu 702-701, Korea; Seoul National University, Seoul 151-742, Korea; Sungkyunkwan University, Suwon 440-746, Korea; Korea Institute of Science and Technology Information, Daejeon 305-806, Korea; Chonnam National University, Gwangju 500-757, Korea; Chonbuk National University, Jeonju 561-756, Korea; Ewha Womans University, Seoul 120-750, Korea) ; Okusawa, T. (Osaka City University, Osaka 558-8585, Japan) ; Orava, R. (Division of High Energy Physics, Department of Physics, University of Helsinki, FIN-00014 Helsinki, Finland; Helsinki Institute of Physics, FIN-00014 Helsinki, Finland) ; Ortolan, L. (Institut de Fisica d’Altes Energies, ICREA, Universitat Autonoma de Barcelona, E-08193 Bellaterra (Barcelona), Spain) ; Pagliarone, C. (Istituto Nazionale di Fisica Nucleare Trieste, I-33100 Udine, Italy) ; Palencia, E. (Instituto de Fisica de Cantabria, CSIC-University of Cantabria, 39005 Santander, Spain) ; Palni, P. (University of New Mexico, Albuquerque, New Mexico 87131, USA) ; Papadimitriou, V. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Parker, W. (University of Wisconsin-Madison, Madison, Wisconsin 53706, USA) ; Pauletta, G. (Istituto Nazionale di Fisica Nucleare Trieste, I-33100 Udine, Italy) (Gruppo Collegato di Udine, I-33100 Udine, Italy) (University of Udine, I-33100 Udine, Italy) ; Paulini, M. (Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA) ; Paus, C. (Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA) ; Phillips, T. J. (Duke University, Durham, North Carolina 27708, USA) ; Piacentino, G. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Pianori, E. (University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA) ; Pilot, J. (University of California, Davis, Davis, California 95616, USA) ; Pitts, K. (University of Illinois, Urbana, Illinois 61801, USA) ; Plager, C. (University of California, Los Angeles, Los Angeles, California 90024, USA) ; Pondrom, L. (University of Wisconsin-Madison, Madison, Wisconsin 53706, USA) ; Poprocki, S. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Potamianos, K. (Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA) ; Pranko, A. (Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA) ; Prokoshin, F. (Joint Institute for Nuclear Research, RU-141980 Dubna, Russia) ; Ptohos, F. (Laboratori Nazionali di Frascati, Istituto Nazionale di Fisica Nucleare, I-00044 Frascati, Italy) ; Punzi, G. (Istituto Nazionale di Fisica Nucleare Pisa, I-56127 Pisa, Italy) (University of Pisa, I-56127 Pisa, Italy) ; Redondo Fernández, I. (Centro de Investigaciones Energeticas Medioambientales y Tecnologicas, E-28040 Madrid, Spain) ; Renton, P. (University of Oxford, Oxford OX1 3RH, United Kingdom) ; Rescigno, M. (Istituto Nazionale di Fisica Nucleare, Sezione di Roma 1, I-00185 Roma, Italy) ; Rimondi, F. (Istituto Nazionale di Fisica Nucleare Bologna, I-40127 Bologna, Italy) ; Ristori, L. (Istituto Nazionale di Fisica Nucleare Pisa, I-56127 Pisa, Italy) (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Robson, A. (Glasgow University, Glasgow G12 8QQ, United Kingdom) ; Rodriguez, T. (University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA) ; Rolli, S. (Tufts University, Medford, Massachusetts 02155, USA) ; Ronzani, M. (Istituto Nazionale di Fisica Nucleare Pisa, I-56127 Pisa, Italy) (University of Pisa, I-56127 Pisa, Italy) ; Roser, R. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Rosner, J. L. (Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA) ; Ruffini, F. (Istituto Nazionale di Fisica Nucleare Pisa, I-56127 Pisa, Italy) (University of Siena, I-56127 Pisa, Italy) ; Ruiz, A. (Instituto de Fisica de Cantabria, CSIC-University of Cantabria, 39005 Santander, Spain) ; Russ, J. (Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA) ; Rusu, V. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Sakumoto, W. K. (University of Rochester, Rochester, New York 14627, USA) ; Sakurai, Y. (Waseda University, Tokyo 169, Japan) ; Santi, L. (Istituto Nazionale di Fisica Nucleare Trieste, I-33100 Udine, Italy) (Gruppo Collegato di Udine, I-33100 Udine, Italy) (University of Udine, I-33100 Udine, Italy) ; Sato, K. (University of Tsukuba, Tsukuba, Ibaraki 305, Japan) ; Saveliev, V. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Savoy-Navarro, A. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Schlabach, P. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Schmidt, E. E. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Schwarz, T. (University of Michigan, Ann Arbor, Michigan 48109, USA) ; Scodellaro, L. (Instituto de Fisica de Cantabria, CSIC-University of Cantabria, 39005 Santander, Spain) ; Scuri, F. (Istituto Nazionale di Fisica Nucleare Pisa, I-56127 Pisa, Italy) ; Seidel, S. (University of New Mexico, Albuquerque, New Mexico 87131, USA) ; Seiya, Y. (Osaka City University, Osaka 558-8585, Japan) ; Semenov, A. (Joint Institute for Nuclear Research, RU-141980 Dubna, Russia) ; Sforza, F. (Istituto Nazionale di Fisica Nucleare Pisa, I-56127 Pisa, Italy) (University of Pisa, I-56127 Pisa, Italy) ; Shalhout, S. Z. (University of California, Davis, Davis, California 95616, USA) ; Shears, T. (University of Liverpool, Liverpool L69 7ZE, United Kingdom) ; Shepard, P. F. (University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA) ; Shimojima, M. (University of Tsukuba, Tsukuba, Ibaraki 305, Japan) ; Shochet, M. (Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA) ; Shreyber-Tecker, I. (Institution for Theoretical and Experimental Physics, ITEP, Moscow 117259, Russia) ; Simonenko, A. (Joint Institute for Nuclear Research, RU-141980 Dubna, Russia) ; Sliwa, K. (Tufts University, Medford, Massachusetts 02155, USA) ; Smith, J. R. (University of California, Davis, Davis, California 95616, USA) ; Snider, F. D. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Song, H. (University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA) ; Sorin, V. (Institut de Fisica d’Altes Energies, ICREA, Universitat Autonoma de Barcelona, E-08193 Bellaterra (Barcelona), Spain) ; St. Denis, R. (Glasgow University, Glasgow G12 8QQ, United Kingdom) ; Stancari, M. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Stentz, D. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Strologas, J. (University of New Mexico, Albuquerque, New Mexico 87131, USA) ; Sudo, Y. (University of Tsukuba, Tsukuba, Ibaraki 305, Japan) ; Sukhanov, A. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Suslov, I. (Joint Institute for Nuclear Research, RU-141980 Dubna, Russia) ; Takemasa, K. (University of Tsukuba, Tsukuba, Ibaraki 305, Japan) ; Takeuchi, Y. (University of Tsukuba, Tsukuba, Ibaraki 305, Japan) ; Tang, J. (Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA) ; Tecchio, M. (University of Michigan, Ann Arbor, Michigan 48109, USA) ; Teng, P. K. (Institute of Physics, Academia Sinica, Taipei, Taiwan 11529, Republic of China) ; Thom, J. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Thomson, E. (University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA) ; Thukral, V. (Mitchell Institute for Fundamental Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA) ; Toback, D. (Mitchell Institute for Fundamental Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA) ; Tokar, S. (Comenius University, 842 48 Bratislava, Slovakia; Institute of Experimental Physics, 040 01 Kosice, Slovakia) ; Tollefson, K. (Michigan State University, East Lansing, Michigan 48824, USA) ; Tomura, T. (University of Tsukuba, Tsukuba, Ibaraki 305, Japan) ; Tonelli, D. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Torre, S. (Laboratori Nazionali di Frascati, Istituto Nazionale di Fisica Nucleare, I-00044 Frascati, Italy) ; Torretta, D. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Totaro, P. (Istituto Nazionale di Fisica Nucleare, Sezione di Padova, I-35131 Padova, Italy) ; Trovato, M. (Istituto Nazionale di Fisica Nucleare Pisa, I-56127 Pisa, Italy) (Scuola Normale Superiore, I-56127 Pisa, Italy) ; Ukegawa, F. (University of Tsukuba, Tsukuba, Ibaraki 305, Japan) ; Uozumi, S. (Center for High Energy Physics: Kyungpook National University, Daegu 702-701, Korea; Seoul National University, Seoul 151-742, Korea; Sungkyunkwan University, Suwon 440-746, Korea; Korea Institute of Science and Technology Information, Daejeon 305-806, Korea; Chonnam National University, Gwangju 500-757, Korea; Chonbuk National University, Jeonju 561-756, Korea; Ewha Womans University, Seoul 120-750, Korea) ; Vázquez, F. (University of Florida, Gainesville, Florida 32611, USA) ; Velev, G. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Vellidis, C. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Vernieri, C. (Istituto Nazionale di Fisica Nucleare Pisa, I-56127 Pisa, Italy) (Scuola Normale Superiore, I-56127 Pisa, Italy) ; Vidal, M. (Purdue University, West Lafayette, Indiana 47907, USA) ; Vilar, R. (Instituto de Fisica de Cantabria, CSIC-University of Cantabria, 39005 Santander, Spain) ; Vizán, J. (Instituto de Fisica de Cantabria, CSIC-University of Cantabria, 39005 Santander, Spain) ; Vogel, M. (University of New Mexico, Albuquerque, New Mexico 87131, USA) ; Volpi, G. (Laboratori Nazionali di Frascati, Istituto Nazionale di Fisica Nucleare, I-00044 Frascati, Italy) ; Wagner, P. (University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA) ; Wallny, R. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Wang, S. M. (Institute of Physics, Academia Sinica, Taipei, Taiwan 11529, Republic of China) ; Waters, D. (University College London, London WC1E 6BT, United Kingdom) ; Wester, W. C. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Whiteson, D. (University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA) ; Wicklund, A. B. (Argonne National Laboratory, Argonne, Illinois 60439, USA) ; Wilbur, S. (University of California, Davis, Davis, California 95616, USA) ; Williams, H. H. (University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA) ; Wilson, J. S. (University of Michigan, Ann Arbor, Michigan 48109, USA) ; Wilson, P. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Winer, B. L. (The Ohio State University, Columbus, Ohio 43210, USA) ; Wittich, P. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Wolbers, S. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Wolfmeister, H. (The Ohio State University, Columbus, Ohio 43210, USA) ; Wright, T. (University of Michigan, Ann Arbor, Michigan 48109, USA) ; Wu, X. (University of Geneva, CH-1211 Geneva 4, Switzerland) ; Wu, Z. (Baylor University, Waco, Texas 76798, USA) ; Yamamoto, K. (Osaka City University, Osaka 558-8585, Japan) ; Yamato, D. (Osaka City University, Osaka 558-8585, Japan) ; Yang, T. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Yang, U. K. (Center for High Energy Physics: Kyungpook National University, Daegu 702-701, Korea; Seoul National University, Seoul 151-742, Korea; Sungkyunkwan University, Suwon 440-746, Korea; Korea Institute of Science and Technology Information, Daejeon 305-806, Korea; Chonnam National University, Gwangju 500-757, Korea; Chonbuk National University, Jeonju 561-756, Korea; Ewha Womans University, Seoul 120-750, Korea) ; Yang, Y. C. (Center for High Energy Physics: Kyungpook National University, Daegu 702-701, Korea; Seoul National University, Seoul 151-742, Korea; Sungkyunkwan University, Suwon 440-746, Korea; Korea Institute of Science and Technology Information, Daejeon 305-806, Korea; Chonnam National University, Gwangju 500-757, Korea; Chonbuk National University, Jeonju 561-756, Korea; Ewha Womans University, Seoul 120-750, Korea) ; Yao, W.M. (Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA) ; Yeh, G. P. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Yi, K. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Yoh, J. (Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA) ; Yorita, K. (Waseda University, Tokyo 169, Japan) ; Yoshida, T. (Osaka City University, Osaka 558-8585, Japan) ; Yu, G. B. (Center for High Energy Physics: Kyungpook National University, Daegu 702-701, Korea; Seoul National University, Seoul 151-742, Korea; Sungkyunkwan University, Suwon 440-746, Korea; Korea Institute of Science and Technology Information, Daejeon 305-806, Korea; Chonnam National University, Gwangju 500-757, Korea; Chonbuk National University, Jeonju 561-756, Korea; Ewha Womans University, Seoul 120-750, Korea) ; Yu, I. (Center for High Energy Physics: Kyungpook National University, Daegu 702-701, Korea; Seoul National University, Seoul 151-742, Korea; Sungkyunkwan University, Suwon 440-746, Korea; Korea Institute of Science and Technology Information, Daejeon 305-806, Korea; Chonnam National University, Gwangju 500-757, Korea; Chonbuk National University, Jeonju 561-756, Korea; Ewha Womans University, Seoul 120-750, Korea) ; Zanetti, A. M. (Istituto Nazionale di Fisica Nucleare Trieste, I-33100 Udine, Italy) ; Zeng, Y. (Duke University, Durham, North Carolina 27708, USA) ; Zhou, C. (Duke University, Durham, North Carolina 27708, USA) ; Zucchelli, S. (Istituto Nazionale di Fisica Nucleare Bologna, I-40127 Bologna, Italy) (University of Bologna, I-40127 Bologna, Italy)

12 March 2019

Abstract: We report on a search for a spin-zero non–standard model particle in proton-antiproton collisions collected by the Collider Detector at Fermilab at a center-of-mass-energy of 1.96 TeV. This particle, the ϕ boson, is expected to decay into a bottom-antibottom quark pair and to be produced in association with at least one bottom quark. The data sample consists of events with three jets identified as initiated by bottom quarks and corresponds to 5.4 fb1 of integrated luminosity. In each event, the invariant mass of the two most energetic jets is studied by looking for deviations from the multijet background, which is modeled using data. No evidence is found for such a particle. Exclusion upper limits ranging from 20 to 2 pb are set for the product of production cross sections times branching fraction for the hypothetical ϕ boson with mass between 100 and 300 GeV/c2. These are the most stringent constraints to date.


Published in: Physical Review D 99 (2019)
Published by: APS
DOI: 10.1103/PhysRevD.99.052001
arXiv: 1902.04683
License: CC-BY-4.0



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