Pseudorapidity distributions of charged particles as a function of mvid- and forward rapidity multiplicities in pp collisions at √<i>s</i>=5.02, 7 and 13 TeV



Acharya, S, Adamova, D, Adler, A, Adolfsson, J, Aggarwal, MM, Agha, S, Aglieri Rinella, G, Agnello, M, Agrawal, N, Ahammed, Z
et al (show 1002 more authors) (2021) Pseudorapidity distributions of charged particles as a function of mvid- and forward rapidity multiplicities in pp collisions at √<i>s</i>=5.02, 7 and 13 TeV. EUROPEAN PHYSICAL JOURNAL C, 81 (7). 630-.

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Abstract

<jats:title>Abstract</jats:title><jats:p>The multiplicity dependence of the pseudorapidity density of charged particles in proton–proton (pp) collisions at centre-of-mass energies <jats:inline-formula><jats:alternatives><jats:tex-math>$$\sqrt{s}~=~5.02$$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:msqrt> <mml:mi>s</mml:mi> </mml:msqrt> <mml:mspace /> <mml:mo>=</mml:mo> <mml:mspace /> <mml:mn>5.02</mml:mn> </mml:mrow> </mml:math></jats:alternatives></jats:inline-formula>, 7 and 13 TeV measured by ALICE is reported. The analysis relies on track segments measured in the midrapidity range (<jats:inline-formula><jats:alternatives><jats:tex-math>$$|\eta | &lt; 1.5$$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mo>|</mml:mo> <mml:mi>η</mml:mi> <mml:mo>|</mml:mo> <mml:mo>&lt;</mml:mo> <mml:mn>1.5</mml:mn> </mml:mrow> </mml:math></jats:alternatives></jats:inline-formula>). Results are presented for inelastic events having at least one charged particle produced in the pseudorapidity interval <jats:inline-formula><jats:alternatives><jats:tex-math>$$|\eta |&lt;1$$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mo>|</mml:mo> <mml:mi>η</mml:mi> <mml:mo>|</mml:mo> <mml:mo>&lt;</mml:mo> <mml:mn>1</mml:mn> </mml:mrow> </mml:math></jats:alternatives></jats:inline-formula>. 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.</jats:p>

Item Type: Article
Uncontrolled Keywords: 5106 Nuclear and Plasma Physics, 5107 Particle and High Energy Physics, 51 Physical Sciences
Divisions: Faculty of Science and Engineering > School of Physical Sciences
Depositing User: Symplectic Admin
Date Deposited: 17 Dec 2021 13:49
Last Modified: 20 Jun 2024 18:57
DOI: 10.1140/epjc/s10052-021-09349-5
Open Access URL: https://link.springer.com/article/10.1140%2Fepjc%2...
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3145574