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1826195943465156608
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MIT
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© 2019 The Author(s) Measurements of the pseudorapidity distributions of charged hadrons produced in xenon-xenon collisions at a nucleon-nucleon centre-of-mass energy of sNN=5.44 TeV are presented. The measurements are based on data collected by the CMS experiment at the LHC. The yield of primary charged hadrons produced in xenon-xenon collisions in the pseudorapidity range |η|<3.2 is determined using the silicon pixel detector in the CMS tracking system. For the 5% most central collisions, the charged-hadron pseudorapidity density in the midrapidity region |η|<0.5 is found to be 1187±36 (syst), with a negligible statistical uncertainty. The rapidity distribution of charged hadrons is also presented in the range |y|<3.2 and is found to be independent of rapidity around y=0. Existing Monte-Carlo event generators are unable to simultaneously describe both results. Comparisons of charged-hadron multiplicities between xenon-xenon and lead-lead collisions at similar collision energies show that particle production at midrapidity is strongly dependent on the collision geometry in addition to the system size and collision energy.
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2024-09-23T10:18:17Z
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Article
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mit-1721.1/133701
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| institution |
Massachusetts Institute of Technology
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| language |
English
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2024-09-23T10:18:17Z
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| publishDate |
2021
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Elsevier BV
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dspace
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| spelling |
mit-1721.1/1337012022-09-26T17:06:43Z Pseudorapidity distributions of charged hadrons in xenon-xenon collisions at √ s NN = 5.44 TeV © 2019 The Author(s) Measurements of the pseudorapidity distributions of charged hadrons produced in xenon-xenon collisions at a nucleon-nucleon centre-of-mass energy of sNN=5.44 TeV are presented. The measurements are based on data collected by the CMS experiment at the LHC. The yield of primary charged hadrons produced in xenon-xenon collisions in the pseudorapidity range |η|<3.2 is determined using the silicon pixel detector in the CMS tracking system. For the 5% most central collisions, the charged-hadron pseudorapidity density in the midrapidity region |η|<0.5 is found to be 1187±36 (syst), with a negligible statistical uncertainty. The rapidity distribution of charged hadrons is also presented in the range |y|<3.2 and is found to be independent of rapidity around y=0. Existing Monte-Carlo event generators are unable to simultaneously describe both results. Comparisons of charged-hadron multiplicities between xenon-xenon and lead-lead collisions at similar collision energies show that particle production at midrapidity is strongly dependent on the collision geometry in addition to the system size and collision energy. 2021-10-27T19:56:16Z 2021-10-27T19:56:16Z 2019 2021-03-26T12:26:49Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/133701 en 10.1016/J.PHYSLETB.2019.135049 Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics Creative Commons Attribution 4.0 International license https://creativecommons.org/licenses/by/4.0/ application/pdf Elsevier BV Elsevier
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| spellingShingle |
Pseudorapidity distributions of charged hadrons in xenon-xenon collisions at √ s NN = 5.44 TeV
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| title |
Pseudorapidity distributions of charged hadrons in xenon-xenon collisions at √ s NN = 5.44 TeV
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| title_full |
Pseudorapidity distributions of charged hadrons in xenon-xenon collisions at √ s NN = 5.44 TeV
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| title_fullStr |
Pseudorapidity distributions of charged hadrons in xenon-xenon collisions at √ s NN = 5.44 TeV
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| title_full_unstemmed |
Pseudorapidity distributions of charged hadrons in xenon-xenon collisions at √ s NN = 5.44 TeV
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| title_short |
Pseudorapidity distributions of charged hadrons in xenon-xenon collisions at √ s NN = 5.44 TeV
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| title_sort |
pseudorapidity distributions of charged hadrons in xenon xenon collisions at √ s nn 5 44 tev
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| url |
https://hdl.handle.net/1721.1/133701
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