Evidence of a structure in K¯0Λc+ consistent with a charged Ξc(2930)+ , and updated measurement of B¯0→K¯0Λc+Λ¯c- at Belle

Li, Y. B. (Aff68, 0000 0001 2256 9319, Peking University, 100871, Beijing, China) ; Shen, C. P. (Aff2, 0000 0000 9999 1211, Beihang University, 100191, Beijing, China) ; Adachi, I. (Aff15, 0000 0004 1763 208X, SOKENDAI (The Graduate University for Advanced Studies), 240-0193, Hayama, Japan) (Aff19, 0000 0001 2155 959X, High Energy Accelerator Research Organization (KEK), 305-0801, Tsukuba, Japan) ; Aihara, H. (Aff81, 0000 0001 2151 536X, Department of Physics, University of Tokyo, 113-0033, Tokyo, Japan) ; Al Said, S. (Aff38, 0000 0001 0619 1117, Department of Physics, Faculty of Science, King Abdulaziz University, 21589, Jeddah, Saudi Arabia) (Aff77, 0000 0004 0419 5685, Department of Physics, Faculty of Science, University of Tabuk, 71451, Tabuk, Saudi Arabia) ; Asner, D. M. (Aff4, 0000 0001 2188 4229, Brookhaven National Laboratory, 11973, Upton, NY, USA) ; Aushev, T. (Aff54, 0000000092721542, Moscow Institute of Physics and Technology, 141700, Moscow, Moscow Region, Russia) ; Ayad, R. (Aff77, 0000 0004 0419 5685, Department of Physics, Faculty of Science, University of Tabuk, 71451, Tabuk, Saudi Arabia) ; Babu, V. (Aff78, 0000 0004 0502 9283, Tata Institute of Fundamental Research, 400005, Mumbai, India) ; Badhrees, I. (Aff37, 0000 0000 8808 6435, King Abdulaziz City for Science and Technology, 11442, Riyadh, Saudi Arabia) (Aff77, 0000 0004 0419 5685, Department of Physics, Faculty of Science, University of Tabuk, 71451, Tabuk, Saudi Arabia) ; Bahinipati, S. (Aff24, 0000 0004 1774 3038, Indian Institute of Technology Bhubaneswar, Satya Nagar, 751007, Bhubaneswar, India) ; Ban, Y. (Aff68, 0000 0001 2256 9319, Peking University, 100871, Beijing, China) ; Bansal, V. (Aff66, 0000 0001 2218 3491, Pacific Northwest National Laboratory, 99352, Richland, WA, USA) ; Behera, P. (Aff27, 0000 0001 2315 1926, Indian Institute of Technology Madras, 600036, Chennai, India) ; Beleño, C. (Aff14, 0000 0001 2364 4210, II. Physikalisches Institut, Georg-August-Universität Göttingen, 37073, Göttingen, Germany) ; Bhardwaj, V. (Aff23, 0000 0004 0406 1521, Indian Institute of Science Education and Research Mohali, 140306, SAS Nagar, India) ; Bhuyan, B. (Aff25, 0000 0001 1887 8311, Indian Institute of Technology Guwahati, 781039, Guwahati, Assam, India) ; Biswal, J. (Aff34, 0000 0001 0706 0012, J. Stefan Institute, 1000, Ljubljana, Slovenia) ; Bobrov, A. (Aff5, Budker Institute of Nuclear Physics SB RAS, 630090, Novosibirsk, Russia) (Aff64, 0000000121896553, Novosibirsk State University, 630090, Novosibirsk, Russia) ; Bozek, A. (Aff61, 0000 0001 0942 8941, H. Niewodniczanski Institute of Nuclear Physics, 31-342, Krakow, Poland) ; Bračko, M. (Aff34, 0000 0001 0706 0012, J. Stefan Institute, 1000, Ljubljana, Slovenia) (Aff49, 0000 0004 0637 0731, University of Maribor, 2000, Maribor, Slovenia) ; Browder, T. E. (Aff18, 0000 0001 2188 0957, University of Hawaii, 96822, Honolulu, HI, USA) ; Cao, L. (Aff36, 0000 0001 0075 5874, Institut für Experimentelle Kernphysik, Karlsruher Institut für Technologie, 76131, Karlsruhe, Germany) ; Červenkov, D. (Aff6, 0000 0004 1937 116X, Faculty of Mathematics and Physics, Charles University, 121 16, Prague, Czech Republic) ; Chang, P. (Aff60, 0000 0004 0546 0241, Department of Physics, National Taiwan University, 10617, Taipei, Taiwan) ; Chekelian, V. (Aff50, 0000 0001 2375 0603, Max-Planck-Institut für Physik, 80805, Munich, Germany) ; Chen, A. (Aff58, 0000 0004 0532 3167, National Central University, 32054, Chung-li, Taiwan) ; Cheon, B. G. (Aff17, 0000 0001 1364 9317, Hanyang University, 133-791, Seoul, South Korea) ; Chilikin, K. (Aff44, 0000 0001 0656 6476, P.N. Lebedev Physical Institute of the Russian Academy of Sciences, 119991, Moscow, Russia) ; Cho, K. (Aff39, 0000 0001 0523 5253, Korea Institute of Science and Technology Information, 305-806, Daejeon, South Korea) ; Choi, S.-K. (Aff16, 0000 0001 0661 1492, Gyeongsang National University, 660-701, Chinju, South Korea) ; Choi, Y. (Aff75, 0000 0001 2181 989X, Sungkyunkwan University, 440-746, Suwon, South Korea) ; Choudhury, S. (Aff26, 0000 0004 1767 065X, Indian Institute of Technology Hyderabad, 502285, Sangareddy, Telangana, India) ; Cinabro, D. (Aff85, 0000 0001 1456 7807, Wayne State University, 48202, Detroit, MI, USA) ; Cunliffe, S. (Aff9, 0000 0004 0492 0453, Deutsches Elektronen-Synchrotron, 22607, Hamburg, Germany) ; Dash, N. (Aff24, 0000 0004 1774 3038, Indian Institute of Technology Bhubaneswar, Satya Nagar, 751007, Bhubaneswar, India) ; Di Carlo, S. (Aff42, 0000 0001 0278 4900, LAL, Univ. Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, Orsay, France) ; Dingfelder, J. (Aff3, 0000 0001 2240 3300, University of Bonn, Bonn, 53115, Germany) ; Doležal, Z. (Aff6, 0000 0004 1937 116X, Faculty of Mathematics and Physics, Charles University, 121 16, Prague, Czech Republic) ; Dong, T. V. (Aff15, 0000 0004 1763 208X, SOKENDAI (The Graduate University for Advanced Studies), 240-0193, Hayama, Japan) (Aff19, 0000 0001 2155 959X, High Energy Accelerator Research Organization (KEK), 305-0801, Tsukuba, Japan) ; Drásal, Z. (Aff6, 0000 0004 1937 116X, Faculty of Mathematics and Physics, Charles University, 121 16, Prague, Czech Republic) ; Eidelman, S. (Aff5, Budker Institute of Nuclear Physics SB RAS, 630090, Novosibirsk, Russia) (Aff44, 0000 0001 0656 6476, P.N. Lebedev Physical Institute of the Russian Academy of Sciences, 119991, Moscow, Russia) (Aff64, 0000000121896553, Novosibirsk State University, 630090, Novosibirsk, Russia) ; Epifanov, D. (Aff5, Budker Institute of Nuclear Physics SB RAS, 630090, Novosibirsk, Russia) (Aff64, 0000000121896553, Novosibirsk State University, 630090, Novosibirsk, Russia) ; Fast, J. E. (Aff66, 0000 0001 2218 3491, Pacific Northwest National Laboratory, 99352, Richland, WA, USA) ; Fulsom, B. G. (Aff66, 0000 0001 2218 3491, Pacific Northwest National Laboratory, 99352, Richland, WA, USA) ; Garg, R. (Aff67, 0000 0001 2174 5640, Panjab University, 160014, Chandigarh, India) ; Gaur, V. (Aff84, 0000 0001 0694 4940, Virginia Polytechnic Institute and State University, 24061, Blacksburg, VA, USA) ; Gabyshev, N. (Aff5, Budker Institute of Nuclear Physics SB RAS, 630090, Novosibirsk, Russia) (Aff64, 0000000121896553, Novosibirsk State University, 630090, Novosibirsk, Russia) ; Garmash, A. (Aff5, Budker Institute of Nuclear Physics SB RAS, 630090, Novosibirsk, Russia) (Aff64, 0000000121896553, Novosibirsk State University, 630090, Novosibirsk, Russia) ; Gelb, M. (Aff36, 0000 0001 0075 5874, Institut für Experimentelle Kernphysik, Karlsruher Institut für Technologie, 76131, Karlsruhe, Germany) ; Giri, A. (Aff26, 0000 0004 1767 065X, Indian Institute of Technology Hyderabad, 502285, Sangareddy, Telangana, India) ; Goldenzweig, P. (Aff36, 0000 0001 0075 5874, Institut für Experimentelle Kernphysik, Karlsruher Institut für Technologie, 76131, Karlsruhe, Germany) ; Golob, B. (Aff34, 0000 0001 0706 0012, J. Stefan Institute, 1000, Ljubljana, Slovenia) (Aff45, 0000 0001 0721 6013, Faculty of Mathematics and Physics, University of Ljubljana, 1000, Ljubljana, Slovenia) ; Haba, J. (Aff15, 0000 0004 1763 208X, SOKENDAI (The Graduate University for Advanced Studies), 240-0193, Hayama, Japan) (Aff19, 0000 0001 2155 959X, High Energy Accelerator Research Organization (KEK), 305-0801, Tsukuba, Japan) ; Hayasaka, K. (Aff63, 0000 0001 0671 5144, Niigata University, 950-2181, Niigata, Japan) ; Hirose, S. (Aff55, 0000 0001 0943 978X, Graduate School of Science, Nagoya University, 464-8602, Nagoya, Japan) ; Hou, W.-S. (Aff60, 0000 0004 0546 0241, Department of Physics, National Taiwan University, 10617, Taipei, Taiwan) ; Iijima, T. (Aff55, 0000 0001 0943 978X, Graduate School of Science, Nagoya University, 464-8602, Nagoya, Japan) (Aff56, 0000 0001 0943 978X, Kobayashi-Maskawa Institute, Nagoya University, 464-8602, Nagoya, Japan) ; Inami, K. (Aff55, 0000 0001 0943 978X, Graduate School of Science, Nagoya University, 464-8602, Nagoya, Japan) ; Inguglia, G. (Aff9, 0000 0004 0492 0453, Deutsches Elektronen-Synchrotron, 22607, Hamburg, Germany) ; Ishikawa, A. (Aff80, 0000 0001 2248 6943, Department of Physics, Tohoku University, 980-8578, Sendai, Japan) ; Itoh, R. (Aff15, 0000 0004 1763 208X, SOKENDAI (The Graduate University for Advanced Studies), 240-0193, Hayama, Japan) (Aff19, 0000 0001 2155 959X, High Energy Accelerator Research Organization (KEK), 305-0801, Tsukuba, Japan) ; Iwasaki, M. (Aff65, 0000 0001 1009 6411, Osaka City University, 558-8585, Osaka, Japan) ; Iwasaki, Y. (Aff19, 0000 0001 2155 959X, High Energy Accelerator Research Organization (KEK), 305-0801, Tsukuba, Japan) ; Jacobs, W. W. (Aff28, 0000 0001 0790 959X, Indiana University, 47408, Bloomington, IN, USA) ; Jaegle, I. (Aff10, 0000 0004 1936 8091, University of Florida, 32611, Gainesville, FL, USA) ; Jeon, H. B. (Aff41, 0000 0001 0661 1556, Kyungpook National University, 702-701, Daegu, South Korea) ; Jia, S. (Aff2, 0000 0000 9999 1211, Beihang University, 100191, Beijing, China) ; Jin, Y. (Aff81, 0000 0001 2151 536X, Department of Physics, University of Tokyo, 113-0033, Tokyo, Japan) ; Joo, K. K. (Aff7, 0000 0001 0356 9399, Chonnam National University, 660-701, Kwangju, South Korea) ; Kaliyar, A. B. (Aff27, 0000 0001 2315 1926, Indian Institute of Technology Madras, 600036, Chennai, India) ; Kang, K. H. (Aff41, 0000 0001 0661 1556, Kyungpook National University, 702-701, Daegu, South Korea) ; Kato, Y. (Aff55, 0000 0001 0943 978X, Graduate School of Science, Nagoya University, 464-8602, Nagoya, Japan) ; Kawasaki, T. (Aff63, 0000 0001 0671 5144, Niigata University, 950-2181, Niigata, Japan) ; Kim, D. Y. (Aff73, 0000 0004 0533 3568, Soongsil University, 156-743, Seoul, South Korea) ; Kim, J. B. (Aff40, 0000 0001 0840 2678, Korea University, 136-713, Seoul, South Korea) ; Kim, S. H. (Aff17, 0000 0001 1364 9317, Hanyang University, 133-791, Seoul, South Korea) ; Kinoshita, K. (Aff8, 0000 0001 2179 9593, University of Cincinnati, 45221, Cincinnati, OH, USA) ; Kodyš, P. (Aff6, 0000 0004 1937 116X, Faculty of Mathematics and Physics, Charles University, 121 16, Prague, Czech Republic) ; Korpar, S. (Aff34, 0000 0001 0706 0012, J. Stefan Institute, 1000, Ljubljana, Slovenia) (Aff49, 0000 0004 0637 0731, University of Maribor, 2000, Maribor, Slovenia) ; Kotchetkov, D. (Aff18, 0000 0001 2188 0957, University of Hawaii, 96822, Honolulu, HI, USA) ; Križan, P. (Aff34, 0000 0001 0706 0012, J. Stefan Institute, 1000, Ljubljana, Slovenia) (Aff45, 0000 0001 0721 6013, Faculty of Mathematics and Physics, University of Ljubljana, 1000, Ljubljana, Slovenia) ; Kroeger, R. (Aff52, 0000 0001 2169 2489, University of Mississippi, 38677, University, MS, USA) ; Krokovny, P. (Aff5, Budker Institute of Nuclear Physics SB RAS, 630090, Novosibirsk, Russia) (Aff64, 0000000121896553, Novosibirsk State University, 630090, Novosibirsk, Russia) ; Kuhr, T. (Aff46, 0000 0004 1936 973X, Ludwig Maximilians University, 80539, Munich, Germany) ; Kwon, Y.-J. (Aff87, 0000 0004 0470 5454, Yonsei University, 120-749, Seoul, South Korea) ; Lange, J. S. (Aff12, 0000 0001 2165 8627, Justus-Liebig-Universität Gießen, 35392, Giessen, Germany) ; Lee, I. S. (Aff17, 0000 0001 1364 9317, Hanyang University, 133-791, Seoul, South Korea) ; Lee, S. C. (Aff41, 0000 0001 0661 1556, Kyungpook National University, 702-701, Daegu, South Korea) ; Li, L. K. (Aff29, 0000000119573309, Institute of High Energy Physics, Chinese Academy of Sciences, 100049, Beijing, China) ; Li Gioi, L. (Aff50, 0000 0001 2375 0603, Max-Planck-Institut für Physik, 80805, Munich, Germany) ; Libby, J. (Aff27, 0000 0001 2315 1926, Indian Institute of Technology Madras, 600036, Chennai, India) ; Liventsev, D. (Aff19, 0000 0001 2155 959X, High Energy Accelerator Research Organization (KEK), 305-0801, Tsukuba, Japan) (Aff84, 0000 0001 0694 4940, Virginia Polytechnic Institute and State University, 24061, Blacksburg, VA, USA) ; Luo, T. (Aff11, 0000 0001 0125 2443, Key Laboratory of Nuclear Physics and Ion-beam Application (MOE) and Institute of Modern Physics, Fudan University, 200443, Shanghai, China) ; Matvienko, D. (Aff5, Budker Institute of Nuclear Physics SB RAS, 630090, Novosibirsk, Russia) (Aff44, 0000 0001 0656 6476, P.N. Lebedev Physical Institute of the Russian Academy of Sciences, 119991, Moscow, Russia) (Aff64, 0000000121896553, Novosibirsk State University, 630090, Novosibirsk, Russia) ; Merola, M. (Aff31, INFN-Sezione di Napoli, 80126, Naples, Italy) (Aff57, 0000 0001 0790 385X, Università di Napoli Federico II, 80055, Naples, Italy) ; Miyata, H. (Aff63, 0000 0001 0671 5144, Niigata University, 950-2181, Niigata, Japan) ; Mizuk, R. (Aff44, 0000 0001 0656 6476, P.N. Lebedev Physical Institute of the Russian Academy of Sciences, 119991, Moscow, Russia) (Aff53, Moscow Physical Engineering Institute, 115409, Moscow, Russia) (Aff54, 0000000092721542, Moscow Institute of Physics and Technology, 141700, Moscow, Moscow Region, Russia) ; Moon, H. K. (Aff40, 0000 0001 0840 2678, Korea University, 136-713, Seoul, South Korea) ; Mori, T. (Aff55, 0000 0001 0943 978X, Graduate School of Science, Nagoya University, 464-8602, Nagoya, Japan) ; Mussa, R. (Aff32, INFN-Sezione di Torino, 10125, Turin, Italy) ; Nakano, E. (Aff65, 0000 0001 1009 6411, Osaka City University, 558-8585, Osaka, Japan) ; Nanut, T. (Aff34, 0000 0001 0706 0012, J. Stefan Institute, 1000, Ljubljana, Slovenia) ; Nath, K. J. (Aff25, 0000 0001 1887 8311, Indian Institute of Technology Guwahati, 781039, Guwahati, Assam, India) ; Natkaniec, Z. (Aff61, 0000 0001 0942 8941, H. Niewodniczanski Institute of Nuclear Physics, 31-342, Krakow, Poland) ; Nayak, M. (Aff19, 0000 0001 2155 959X, High Energy Accelerator Research Organization (KEK), 305-0801, Tsukuba, Japan) (Aff85, 0000 0001 1456 7807, Wayne State University, 48202, Detroit, MI, USA) ; Nisar, N. K. (Aff69, 0000 0004 1936 9000, University of Pittsburgh, 15260, PA, Pittsburgh, USA) ; Nishida, S. (Aff15, 0000 0004 1763 208X, SOKENDAI (The Graduate University for Advanced Studies), 240-0193, Hayama, Japan) (Aff19, 0000 0001 2155 959X, High Energy Accelerator Research Organization (KEK), 305-0801, Tsukuba, Japan) ; Nishimura, K. (Aff18, 0000 0001 2188 0957, University of Hawaii, 96822, Honolulu, HI, USA) ; Ogawa, K. (Aff63, 0000 0001 0671 5144, Niigata University, 950-2181, Niigata, Japan) ; Okuno, S. (Aff35, 0000 0001 2155 9872, Kanagawa University, 221-8686, Yokohama, Japan) ; Ono, H. (Aff62, 0000 0001 2293 6406, Nippon Dental University, 951-8580, Niigata, Japan) (Aff63, 0000 0001 0671 5144, Niigata University, 950-2181, Niigata, Japan) ; Pakhlov, P. (Aff44, 0000 0001 0656 6476, P.N. Lebedev Physical Institute of the Russian Academy of Sciences, 119991, Moscow, Russia) (Aff53, Moscow Physical Engineering Institute, 115409, Moscow, Russia) ; Pakhlova, G. (Aff44, 0000 0001 0656 6476, P.N. Lebedev Physical Institute of the Russian Academy of Sciences, 119991, Moscow, Russia) (Aff54, 0000000092721542, Moscow Institute of Physics and Technology, 141700, Moscow, Moscow Region, Russia) ; Pal, B. (Aff4, 0000 0001 2188 4229, Brookhaven National Laboratory, 11973, Upton, NY, USA) ; Pardi, S. (Aff31, INFN-Sezione di Napoli, 80126, Naples, Italy) ; Park, H. (Aff41, 0000 0001 0661 1556, Kyungpook National University, 702-701, Daegu, South Korea) ; Paul, S. (Aff79, 0000000123222966, Department of Physics, Technische Universität München, 85748, Garching, Germany) ; Pedlar, T. K. (Aff47, 0000 0004 0394 7857, Luther College, 52101, Decorah, IA, USA) ; Pestotnik, R. (Aff34, 0000 0001 0706 0012, J. Stefan Institute, 1000, Ljubljana, Slovenia) ; Piilonen, L. E. (Aff84, 0000 0001 0694 4940, Virginia Polytechnic Institute and State University, 24061, Blacksburg, VA, USA) ; Popov, V. (Aff44, 0000 0001 0656 6476, P.N. Lebedev Physical Institute of the Russian Academy of Sciences, 119991, Moscow, Russia) (Aff54, 0000000092721542, Moscow Institute of Physics and Technology, 141700, Moscow, Moscow Region, Russia) ; Prencipe, E. (Aff21, 0000 0001 2297 375X, Forschungszentrum Jülich, 52425, Jülich, Germany) ; Rostomyan, A. (Aff9, 0000 0004 0492 0453, Deutsches Elektronen-Synchrotron, 22607, Hamburg, Germany) ; Russo, G. (Aff31, INFN-Sezione di Napoli, 80126, Naples, Italy) ; Sakai, Y. (Aff15, 0000 0004 1763 208X, SOKENDAI (The Graduate University for Advanced Studies), 240-0193, Hayama, Japan) (Aff19, 0000 0001 2155 959X, High Energy Accelerator Research Organization (KEK), 305-0801, Tsukuba, Japan) ; Salehi, M. (Aff46, 0000 0004 1936 973X, Ludwig Maximilians University, 80539, Munich, Germany) (Aff48, 0000 0001 2308 5949, University of Malaya, 50603, Kuala Lumpur, Malaysia) ; Sandilya, S. (Aff8, 0000 0001 2179 9593, University of Cincinnati, 45221, Cincinnati, OH, USA) ; Santelj, L. (Aff19, 0000 0001 2155 959X, High Energy Accelerator Research Organization (KEK), 305-0801, Tsukuba, Japan) ; Sanuki, T. (Aff80, 0000 0001 2248 6943, Department of Physics, Tohoku University, 980-8578, Sendai, Japan) ; Savinov, V. (Aff69, 0000 0004 1936 9000, University of Pittsburgh, 15260, PA, Pittsburgh, USA) ; Schneider, O. (Aff43, 0000000121839049, École Polytechnique Fédérale de Lausanne (EPFL), 1015, Lausanne, Switzerland) ; Schnell, G. (Aff1, 0000000121671098, University of the Basque Country UPV/EHU, 48080, Bilbao, Spain) (Aff22, 0000 0004 0467 2314, IKERBASQUE, Basque Foundation for Science, 48013, Bilbao, Spain) ; Schwanda, C. (Aff30, 0000 0004 0625 7405, Institute of High Energy Physics, 1050, Vienna, Austria) ; Seino, Y. (Aff63, 0000 0001 0671 5144, Niigata University, 950-2181, Niigata, Japan) ; Senyo, K. (Aff86, 0000 0001 0674 7277, Yamagata University, 990-8560, Yamagata, Japan) ; Seon, O. (Aff55, 0000 0001 0943 978X, Graduate School of Science, Nagoya University, 464-8602, Nagoya, Japan) ; Sevior, M. E. (Aff51, 0000 0001 2179 088X, School of Physics, University of Melbourne, 3010, Melbourne, VIC, Australia) ; Shibata, T.-A. (Aff82, 0000 0001 2179 2105, Tokyo Institute of Technology, 152-8550, Tokyo, Japan) ; Shiu, J.-G. (Aff60, 0000 0004 0546 0241, Department of Physics, National Taiwan University, 10617, Taipei, Taiwan) ; Solovieva, E. (Aff44, 0000 0001 0656 6476, P.N. Lebedev Physical Institute of the Russian Academy of Sciences, 119991, Moscow, Russia) (Aff54, 0000000092721542, Moscow Institute of Physics and Technology, 141700, Moscow, Moscow Region, Russia) ; Starič, M. (Aff34, 0000 0001 0706 0012, J. Stefan Institute, 1000, Ljubljana, Slovenia) ; Strube, J. F. (Aff66, 0000 0001 2218 3491, Pacific Northwest National Laboratory, 99352, Richland, WA, USA) ; Sumihama, M. (Aff13, 0000 0004 0370 4927, Gifu University, 501-1193, Gifu, Japan) ; Sumiyoshi, T. (Aff83, 0000 0001 1090 2030, Tokyo Metropolitan University, 192-0397, Tokyo, Japan) ; Takizawa, M. (Aff20, 0000 0001 2155 959X, J-PARC Branch, KEK Theory Center, High Energy Accelerator Research Organization (KEK), 305-0801, Tsukuba, Japan) (Aff70, 0000000094465255, Theoretical Research Division, Nishina Center, RIKEN, 351-0198, Saitama, Japan) (Aff72, Showa Pharmaceutical University, 194-8543, Tokyo, China) ; Tamponi, U. (Aff32, INFN-Sezione di Torino, 10125, Turin, Italy) ; Tanida, K. (Aff33, 0000 0001 0372 1485, Advanced Science Research Center, Japan Atomic Energy Agency, 319-1195, Naka, Japan) ; Tenchini, F. (Aff51, 0000 0001 2179 088X, School of Physics, University of Melbourne, 3010, Melbourne, VIC, Australia) ; Uchida, M. (Aff82, 0000 0001 2179 2105, Tokyo Institute of Technology, 152-8550, Tokyo, Japan) ; Uglov, T. (Aff44, 0000 0001 0656 6476, P.N. Lebedev Physical Institute of the Russian Academy of Sciences, 119991, Moscow, Russia) (Aff54, 0000000092721542, Moscow Institute of Physics and Technology, 141700, Moscow, Moscow Region, Russia) ; Unno, Y. (Aff17, 0000 0001 1364 9317, Hanyang University, 133-791, Seoul, South Korea) ; Uno, S. (Aff15, 0000 0004 1763 208X, SOKENDAI (The Graduate University for Advanced Studies), 240-0193, Hayama, Japan) (Aff19, 0000 0001 2155 959X, High Energy Accelerator Research Organization (KEK), 305-0801, Tsukuba, Japan) ; Usov, Y. (Aff5, Budker Institute of Nuclear Physics SB RAS, 630090, Novosibirsk, Russia) (Aff64, 0000000121896553, Novosibirsk State University, 630090, Novosibirsk, Russia) ; Van Hulse, C. (Aff1, 0000000121671098, University of the Basque Country UPV/EHU, 48080, Bilbao, Spain) ; Van Tonder, R. (Aff36, 0000 0001 0075 5874, Institut für Experimentelle Kernphysik, Karlsruher Institut für Technologie, 76131, Karlsruhe, Germany) ; Varner, G. (Aff18, 0000 0001 2188 0957, University of Hawaii, 96822, Honolulu, HI, USA) ; Varvell, K. E. (Aff76, 0000 0004 1936 834X, School of Physics, University of Sydney, 2006, Sydney, NSW, Australia) ; Vorobyev, V. (Aff5, Budker Institute of Nuclear Physics SB RAS, 630090, Novosibirsk, Russia) (Aff44, 0000 0001 0656 6476, P.N. Lebedev Physical Institute of the Russian Academy of Sciences, 119991, Moscow, Russia) (Aff64, 0000000121896553, Novosibirsk State University, 630090, Novosibirsk, Russia) ; Waheed, E. (Aff51, 0000 0001 2179 088X, School of Physics, University of Melbourne, 3010, Melbourne, VIC, Australia) ; Wang, B. (Aff8, 0000 0001 2179 9593, University of Cincinnati, 45221, Cincinnati, OH, USA) ; Wang, C. H. (Aff59, 0000 0004 0622 7206, National United University, 36003, Miao Li, Taiwan) ; Wang, M.-Z. (Aff60, 0000 0004 0546 0241, Department of Physics, National Taiwan University, 10617, Taipei, Taiwan) ; Wang, P. (Aff29, 0000000119573309, Institute of High Energy Physics, Chinese Academy of Sciences, 100049, Beijing, China) ; Wang, X. L. (Aff11, 0000 0001 0125 2443, Key Laboratory of Nuclear Physics and Ion-beam Application (MOE) and Institute of Modern Physics, Fudan University, 200443, Shanghai, China) ; Watanuki, S. (Aff80, 0000 0001 2248 6943, Department of Physics, Tohoku University, 980-8578, Sendai, Japan) ; Widmann, E. (Aff74, 0000 0000 9532 5705, Stefan Meyer Institute for Subatomic Physics, 1090, Vienna, Austria) ; Won, E. (Aff40, 0000 0001 0840 2678, Korea University, 136-713, Seoul, South Korea) ; Ye, H. (Aff9, 0000 0004 0492 0453, Deutsches Elektronen-Synchrotron, 22607, Hamburg, Germany) ; Yelton, J. (Aff10, 0000 0004 1936 8091, University of Florida, 32611, Gainesville, FL, USA) ; Yin, J. H. (Aff29, 0000000119573309, Institute of High Energy Physics, Chinese Academy of Sciences, 100049, Beijing, China) ; Yuan, C. Z. (Aff29, 0000000119573309, Institute of High Energy Physics, Chinese Academy of Sciences, 100049, Beijing, China) ; Yusa, Y. (Aff63, 0000 0001 0671 5144, Niigata University, 950-2181, Niigata, Japan) ; Zhang, Z. P. (Aff71, 0000000121679639, University of Science and Technology of China, 230026, Hefei, China) ; Zhilich, V. (Aff5, Budker Institute of Nuclear Physics SB RAS, 630090, Novosibirsk, Russia) (Aff64, 0000000121896553, Novosibirsk State University, 630090, Novosibirsk, Russia) ; Zhukova, V. (Aff44, 0000 0001 0656 6476, P.N. Lebedev Physical Institute of the Russian Academy of Sciences, 119991, Moscow, Russia) (Aff53, Moscow Physical Engineering Institute, 115409, Moscow, Russia) ; Zhulanov, V. (Aff5, Budker Institute of Nuclear Physics SB RAS, 630090, Novosibirsk, Russia) (Aff64, 0000000121896553, Novosibirsk State University, 630090, Novosibirsk, Russia)

13 November 2018

Abstract: We report evidence for the charged charmed-strange baryon Ξc(2930)+ with a signal significance of 3.9 σ with systematic errors included. The charged Ξc(2930)+ is found in its decay to KS0Λc+ in the substructure of B¯0→KS0Λc+Λ¯c- decays. The measured mass and width are [2942.3±4.4(stat.)±1.5(syst.)]  MeV/ c2 and [14.8±8.8(stat.)±2.5(syst.)]  MeV, respectively, and the product branching fraction is B(B¯0→Ξc(2930)+Λ¯c-)B(Ξc(2930)+→K¯0Λc+)=[2.37±0.51(stat.)±0.31(syst.)]×10-4 . We also measure B(B¯0→K¯0Λc+Λ¯c-)=[3.99±0.76(stat.)±0.51(syst.)]×10-4 with greater precision than previous experiments, and present the results of a search for the charmonium-like state Y (4660) and its spin partner, Yη , in the Λc+Λ¯c- invariant mass spectrum. No clear signals of the Y (4660) or Yη are observed and the 90% credibility level (C.L.) upper limits on their production rates are determined. These measurements are obtained from a sample of (772±11)×106BB¯ pairs collected at the Υ(4S) resonance by the Belle detector at the KEKB asymmetric energy electron-positron collider.


Published in: EPJC 78 (2018) 928
Published by: Springer/Società Italiana di Fisica
DOI: 10.1140/epjc/s10052-018-6425-5
License: CC-BY-3.0



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