Pseudorapidity distributions of charged particles as a function of mid- and forward rapidity multiplicities in pp collisions at $\sqrt{s}$ = 5.02, 7 and 13 TeV - INSPIRE

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Pseudorapidity distributions of charged particles as a function of mid- and forward rapidity multiplicities in pp collisions at $\sqrt{s}$ = 5.02, 7 and 13 TeV

ALICE

Collaboration

Sep 20, 2020

18 pages

Published in:

Eur.Phys.J.C 81 (2021) 7, 630

Published: Jul 19, 2021

e-Print:

2009.09434 [nucl-ex]

DOI:

10.1140/epjc/s10052-021-09349-5

Report number:

CERN-EP-2020-170

Experiments:

CERN-LHC-ALICE

View in:

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Abstract: (Springer)

The multiplicity dependence of the pseudorapidity density of charged particles in proton–proton (pp) collisions at centre-of-mass energies

\sqrt{s}~=~5.02

, 7 and 13 TeV measured by ALICE is reported. The analysis relies on track segments measured in the midrapidity range (

|\eta | < 1.5

). Results are presented for inelastic events having at least one charged particle produced in the pseudorapidity interval

|\eta |<1

. The multiplicity dependence of the pseudorapidity density of charged particles is measured with mid- and forward rapidity multiplicity estimators, the latter being less affected by autocorrelations. A detailed comparison with predictions from the PYTHIA 8 and EPOS LHC event generators is also presented. The results can be used to constrain models for particle production as a function of multiplicity in pp collisions.

Note:

21 pages, 6 captioned figures, 5 tables, authors from page 16, published version, figures at http://alice-publications.web.cern.ch/node/6679"

charged particle: density
multiplicity: dependence
rapidity: density
p p: scattering
CERN LHC Coll
Monte Carlo
estimator
tracks
PYTHIA
ALICE

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