Note on X(3872) production at hadron colliders and its molecular structureSupported by DFG and NSFC through funds provided to the Sino-German CRC 110 “Symmetries and the Emergence of Structure in QCD” (NSFC (11621131001), DFG (TRR110)), by NSFC (11647601), by the CAS Key Research Program of Frontier Sciences (QYZDB-SSW-SYS013), by the Thousand Talents Plan for Young Professionals, by the CAS President’s International Fellowship Initiative (PIFI) (2017VMA0025), and by Spanish Ministerio de Economía y Competitividad and European FEDER under contracts FIS2014-51948-C2-1-P and SEV-2014-0398. Part of the computations have been performed on JUQUEEN and JURECA of the JSC, Jülich, Germany

Albaladejo, Miguel (Departamento de Fí sica, Universidad de Murcia, E-30071 Murcia, Spain) ; Guo, Feng-Kun (CAS Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, China) (School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China) ; Hanhart, Christoph (Institute for Advanced Simulation, Institut für Kernphysik and Jülich Center for Hadron Physics, Forschungszentrum Jülich, D-52425 Jülich, Germany) ; Meißner, Ulf-G. (Institute for Advanced Simulation, Institut für Kernphysik and Jülich Center for Hadron Physics, Forschungszentrum Jülich, D-52425 Jülich, Germany) (Helmholtz-Institut für Strahlen- und Kernphysik and Bethe Center for Theoretical Physics, Universität Bonn, D-53115 Bonn, Germany) ; Nieves, Juan (Instituto de Física Corpuscular (IFIC), Centro Mixto CSIC-Universidad de Valencia, Institutos de Investigación de Paterna, Aptd. 22085, E-46071 Valencia, Spain) ; Nogga, Andreas (Institute for Advanced Simulation, Institut für Kernphysik and Jülich Center for Hadron Physics, Forschungszentrum Jülich, D-52425 Jülich, Germany) ; Yang, Zhi (Helmholtz-Institut für Strahlen- und Kernphysik and Bethe Center for Theoretical Physics, Universität Bonn, D-53115 Bonn, Germany) (Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China)

30 November 2017

Abstract: The production of the X(3872) as a hadronic molecule in hadron colliders is clarified. We show that the conclusion of Bignamini et al., Phys. Rev. Lett. 103 (2009) 162001, that the production of the X(3872) at high pT implies a non-molecular structure, does not hold. In particular, using the well understood properties of the deuteron wave function as an example, we identify the relevant scales in the production process.


Published in: Chinese Phys. C 41 (2017) 121001
Published by: Institute of Physics Publishing/Chinese Academy of Sciences
DOI: 10.1088/1674-1137/41/12/121001
arXiv: 1709.09101
License: CC-BY-3.0



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