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Multiplicity and rapidity dependence of strange hadron production in pp, pPb, and PbPb collisions at the LHC

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  • معلومة اضافية
    • Contributors:
      Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU); Université Paris-Saclay-Direction de Recherche Fondamentale (CEA) (DRF (CEA)); Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA); Laboratoire Leprince-Ringuet (LLR); Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS); Institut Pluridisciplinaire Hubert Curien (IPHC); Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS); Centre de Calcul de l'IN2P3 (CC-IN2P3); Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS); Institut de Physique Nucléaire de Lyon (IPNL); Université Claude Bernard Lyon 1 (UCBL); Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS); CMS
    • بيانات النشر:
      HAL CCSD
      Elsevier
    • الموضوع:
      2017
    • Collection:
      École Polytechnique, Université Paris-Saclay: HAL
    • نبذة مختصرة :
      Submitted to Phys. Lett. B - see paper for full list of authors ; International audience ; Measurements of strange hadron (K0s, Lambda + anti-Lambda, and Xi+ + Xi-) transverse momentum spectra in pp, pPb, and PbPb collisions are presented over a wide range of rapidity and event charged-particle multiplicity. The data were collected with the CMS detector at the CERN LHC in pp collisions at sqrt(s) = 7 TeV, pPb collisions at sqrt(s[NN]) = 5.02 TeV, and PbPb collisions at sqrt(s[NN]) = 2.76 TeV. The average transverse kinetic energy is found to increase with multiplicity, at a faster rate for heavier strange particle species in all systems. At similar multiplicities, the difference in average transverse kinetic energy between different particle species is observed to be larger for pp and pPb events than for PbPb events. In pPb collisions, the average transverse kinetic energy is found to be slightly larger in the Pb-going direction than in the p-going direction for events with large multiplicity. The spectra are compared to models motivated by hydrodynamics.
    • Relation:
      info:eu-repo/semantics/altIdentifier/arxiv/1605.06699; in2p3-01320601; https://hal.in2p3.fr/in2p3-01320601; https://hal.in2p3.fr/in2p3-01320601/document; https://hal.in2p3.fr/in2p3-01320601/file/1-s2.0-S0370269317301168-main.pdf; ARXIV: 1605.06699
    • الرقم المعرف:
      10.1016/j.physletb.2017.01.075
    • Rights:
      info:eu-repo/semantics/OpenAccess
    • الرقم المعرف:
      edsbas.DDADFA19