Pseudorapidity distributions of charged hadrons in proton-lead collisions at root s(NN)=5:02 and 8.16 TeV
АуториSirunyan, A. M.
CMS Collaboration (ukupan broj autora: 2224)
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The pseudorapidity distributions of charged hadrons in proton-lead collisions at nucleon-nucleon center-of-mass energies root s(NN) = 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 vertical bar eta(lab)vertical bar LT 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 vertical bar eta(cm)vertical bar LT 0.5, the average charged-hadron multiplicity densities LT dN(ch)/d eta(cm) GT vertical bar(vertical bar eta cm vertical bar) LT 0.5 are 17.1 +/- 0.01 (stat) +/- 0.59 (syst) and 20.10 +/- 0.01 (stat) +/- 0.5(syst) at root s(NN) = 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.
Кључне речи:Hadron-Hadron scattering (experiments) / Heavy-ion collision
Извор:Journal of High Energy Physics, 2018, 1
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