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Measurements of the pseudorapidity distributions of charged hadrons produced in xenon-xenon collisions at a nucleon-nucleon centre-of-mass energy of s NN=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.
Originele taal-2 | English |
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Artikelnummer | 135049 |
Aantal pagina's | 23 |
Tijdschrift | Phys. Lett. B |
Volume | 799 |
DOI's | |
Status | Published - 10 dec 2019 |
Bibliografische nota
Replaced with the published version. Added the journal reference. All the figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/HIN-17-006(CMS Public Pages)Vingerafdruk
Duik in de onderzoeksthema's van 'Pseudorapidity distributions of charged hadrons in xenon-xenon collisions at $\sqrt{s_\mathrm{NN}} =$ 5.44 TeV'. Samen vormen ze een unieke vingerafdruk.Projecten
- 1 Afgelopen
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SRP8: SRP (Zwaartepunt): Hoge-Energiefysica
D'Hondt, J., Van Eijndhoven, N., Craps, B. & Buitink, S.
1/11/12 → 31/10/24
Project: Fundamenteel
Datasets
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Pseudorapidity distributions of charged hadrons in xenon-xenon collisions at $\sqrt{s_\mathrm{NN}} =$ 5.44 TeV
Abu Zeid, S. (Creator), Blekman, F. (Creator), D'Hondt, J. (Creator), De Bruyn, I. H. (Creator), De Clercq, J. T. (Creator), Deroover, K. (Creator), Flouris, G. (Creator), Lontkovskyi, D. (Creator), Lowette, S. (Creator), Marchesini, I. (Creator), Moortgat, S. (Creator), Moreels, L. (Creator), Python, Q. (Creator), Skovpen, K. (Creator), Tavernier, S. (Creator), Van Doninck, W. (Creator), Van Mulders, P. (Creator) & Van Parijs, I. M. (Creator), HEPData, 26 feb 2019
DOI: 10.17182/hepdata.88285, https://www.hepdata.net/record/ins1719334
Dataset