Sirunyan A.M.Stathes PaganisPAO-TI CHANG et al.YEE HSIUNG et al.KAI-FENG CHEN et al.RONG-SHYANG LU et al.WEI-SHU HOU et al.2021-07-282021-07-28201811266708https://www.scopus.com/inward/record.uri?eid=2-s2.0-85040930764&doi=10.1007%2fJHEP01%282018%29045&partnerID=40&md5=60e4924924f1d118780f7372453d3eebhttps://scholars.lib.ntu.edu.tw/handle/123456789/575145The pseudorapidity distributions of charged hadrons in proton-lead collisions at nucleon-nucleon center-of-mass energies sNN=5.02 and 8.16 TeV are presented. The measurements are based on data samples collected by the CMS experiment at the LHC. The number of primary charged hadrons produced in non-single-diffractive proton-lead collisions is determined in the pseudorapidity range |ηlab| < 2.4. The charged-hadron multiplicity distributions are compared to the predictions from theoretical calculations and Monte Carlo event generators. In the center-of-mass pseudorapidity range |ηcm| < 0.5, the average charged-hadron multiplicity densities 〈dNch/dηcm〉|ηcm| < 0.5 are 17.31 ± 0.01 (stat) ± 0.59 (syst) and 20.10 ± 0.01 (stat) ± 0.85(syst) at sNN=5.02 and 8.16 TeV, respectively. The particle densities per participant nucleon are compared to similar measurements in proton-proton, proton-nucleus, and nucleus-nucleus collisions.[Figure not available: see fulltext.]. ? 2018, The Author(s).journal article10.1007/JHEP01(2018)0452-s2.0-85040930764