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Fraction of χ_{c} Decays in Prompt J/ψ Production Measured in pPb Collisions at sqrt[s_{NN}]=8.16 TeV.
Aaij, R; Abdelmotteleb, A S W; Abellan Beteta, C; Abudinén, F; Ackernley, T; Adeva, B; Adinolfi, M; Adlarson, P; Agapopoulou, C; Aidala, C A; Ajaltouni, Z; Akar, S; Akiba, K; Albicocco, P; Albrecht, J; Alessio, F; Alexander, M; Alfonso Albero, A; Aliouche, Z; Alvarez Cartelle, P; Amalric, R; Amato, S; Amey, J L; Amhis, Y; An, L; Anderlini, L; Andersson, M; Andreianov, A; Andreola, P; Andreotti, M; Andreou, D; Anelli, A A; Ao, D; Archilli, F; Argenton, M; Arguedas Cuendis, S; Artamonov, A; Artuso, M; Aslanides, E; Atzeni, M; Audurier, B; Bacher, D; Bachiller Perea, I; Bachmann, S; Bachmayer, M; Back, J J; Bailly-Reyre, A; Baladron Rodriguez, P; Balagura, V; Baldini, W.
Afiliación
  • Aaij R; Nikhef National Institute for Subatomic Physics, Amsterdam, Netherlands.
  • Abdelmotteleb ASW; Department of Physics, University of Warwick, Coventry, United Kingdom.
  • Abellan Beteta C; Physik-Institut, Universität Zürich, Zürich, Switzerland.
  • Abudinén F; Department of Physics, University of Warwick, Coventry, United Kingdom.
  • Ackernley T; Oliver Lodge Laboratory, University of Liverpool, Liverpool, United Kingdom.
  • Adeva B; Instituto Galego de Física de Altas Enerxías (IGFAE), Universidade de Santiago de Compostela, Santiago de Compostela, Spain.
  • Adinolfi M; H.H. Wills Physics Laboratory, University of Bristol, Bristol, United Kingdom.
  • Adlarson P; Department of Physics and Astronomy, Uppsala University, Uppsala, Sweden (associated with School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom).
  • Agapopoulou C; European Organization for Nuclear Research (CERN), Geneva, Switzerland.
  • Aidala CA; University of Michigan, Ann Arbor, Michigan, USA (associated with Syracuse University, Syracuse, New York, USA).
  • Ajaltouni Z; Université Clermont Auvergne, CNRS/IN2P3, LPC, Clermont-Ferrand, France.
  • Akar S; University of Cincinnati, Cincinnati, Ohio, USA.
  • Akiba K; Nikhef National Institute for Subatomic Physics, Amsterdam, Netherlands.
  • Albicocco P; INFN Laboratori Nazionali di Frascati, Frascati, Italy.
  • Albrecht J; Fakultät Physik, Technische Universität Dortmund, Dortmund, Germany.
  • Alessio F; European Organization for Nuclear Research (CERN), Geneva, Switzerland.
  • Alexander M; School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom.
  • Alfonso Albero A; ICCUB, Universitat de Barcelona, Barcelona, Spain.
  • Aliouche Z; Department of Physics and Astronomy, University of Manchester, Manchester, United Kingdom.
  • Alvarez Cartelle P; Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom.
  • Amalric R; LPNHE, Sorbonne Université, Paris Diderot Sorbonne Paris Cité, CNRS/IN2P3, Paris, France.
  • Amato S; Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil.
  • Amey JL; H.H. Wills Physics Laboratory, University of Bristol, Bristol, United Kingdom.
  • Amhis Y; Université Paris-Saclay, CNRS/IN2P3, IJCLab, Orsay, France.
  • An L; European Organization for Nuclear Research (CERN), Geneva, Switzerland.
  • Anderlini L; School of Physics State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing, China.
  • Andersson M; INFN Sezione di Firenze, Firenze, Italy.
  • Andreianov A; Physik-Institut, Universität Zürich, Zürich, Switzerland.
  • Andreola P; Affiliated with an institute covered by a cooperation agreement with CERN.
  • Andreotti M; Physik-Institut, Universität Zürich, Zürich, Switzerland.
  • Andreou D; INFN Sezione di Ferrara, Ferrara, Italy.
  • Anelli AA; Syracuse University, Syracuse, New York, USA.
  • Ao D; INFN Sezione di Milano-Bicocca, Milano, Italy.
  • Archilli F; University of Chinese Academy of Sciences, Beijing, China.
  • Argenton M; INFN Sezione di Roma Tor Vergata, Roma, Italy.
  • Arguedas Cuendis S; INFN Sezione di Ferrara, Ferrara, Italy.
  • Artamonov A; Consejo Nacional de Rectores (CONARE), San Jose, Costa Rica.
  • Artuso M; Affiliated with an institute covered by a cooperation agreement with CERN.
  • Aslanides E; Syracuse University, Syracuse, New York, USA.
  • Atzeni M; Aix Marseille Univ, CNRS/IN2P3, CPPM, Marseille, France.
  • Audurier B; Massachusetts Institute of Technology, Cambridge, Massachusetts, USA.
  • Bacher D; Laboratoire Leprince-Ringuet, CNRS/IN2P3, Ecole Polytechnique, Institut Polytechnique de Paris, Palaiseau, France.
  • Bachiller Perea I; Department of Physics, University of Oxford, Oxford, United Kingdom.
  • Bachmann S; Université Savoie Mont Blanc, CNRS, IN2P3-LAPP, Annecy, France.
  • Bachmayer M; Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany.
  • Back JJ; Institute of Physics, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
  • Bailly-Reyre A; Department of Physics, University of Warwick, Coventry, United Kingdom.
  • Baladron Rodriguez P; LPNHE, Sorbonne Université, Paris Diderot Sorbonne Paris Cité, CNRS/IN2P3, Paris, France.
  • Balagura V; Instituto Galego de Física de Altas Enerxías (IGFAE), Universidade de Santiago de Compostela, Santiago de Compostela, Spain.
  • Baldini W; Laboratoire Leprince-Ringuet, CNRS/IN2P3, Ecole Polytechnique, Institut Polytechnique de Paris, Palaiseau, France.
Phys Rev Lett ; 132(10): 102302, 2024 Mar 08.
Article en En | MEDLINE | ID: mdl-38518337
ABSTRACT
The fraction of χ_{c1} and χ_{c2} decays in the prompt J/ψ yield, F_{χ_{c}→J/ψ}=σ_{χ_{c}→J/ψ}/σ_{J/ψ}, is measured by the LHCb detector in pPb collisions at sqrt[s_{NN}]=8.16 TeV. The study covers the forward (1.5nucleon-nucleon center-of-mass system. Forward and backward rapidity samples correspond to integrated luminosities of 13.6±0.3 and 20.8±0.5 nb^{-1}, respectively. The result is presented as a function of the J/ψ transverse momentum p_{T,J/ψ} in the range 1suppression of the ψ(2S) contribution to the prompt J/ψ yield. The lack of in-medium dissociation of χ_{c} states observed in this study sets an upper limit of 180 MeV on the free energy available in these pPb collisions to dissociate or inhibit charmonium state formation.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2024 Tipo del documento: Article País de afiliación: Países Bajos
Texto completo
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Imprimir
XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2024 Tipo del documento: Article País de afiliación: Países Bajos