Measurement of (2S) production as a function of charged-particle pseudorapidity density in pp collisions at root s=13 TeV and p-Pb collisions at root s(NN)=8.16 TeV with ALICE at the LHC

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F23%3A00368616" target="_blank" >RIV/68407700:21340/23:00368616 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1007/JHEP06(2023)147" target="_blank" >https://doi.org/10.1007/JHEP06(2023)147</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/JHEP06(2023)147" target="_blank" >10.1007/JHEP06(2023)147</a>

Result language

angličtina

Original language name

Measurement of (2S) production as a function of charged-particle pseudorapidity density in pp collisions at root s=13 TeV and p-Pb collisions at root s(NN)=8.16 TeV with ALICE at the LHC

Original language description

Production of inclusive charmonia in pp collisions at center-of-mass energy of root s = 13TeV and p-Pb collisions at center-of-mass energy per nucleon pair of root sNN = 8.16TeV is studied as a function of charged-particle pseudorapidity density with ALICE. Ground and excited charmonium states ( J/psi, psi(2S)) are measured from their dimuon decays in the interval of rapidity in the center-of-mass frame 2.5 < y(cms) < 4.0 for pp collisions, and 2.03 < y(cms) < 3.53 and -4.46 < y(cms) < -2.96 for p-Pb collisions. The charged-particle pseudorapidity density is measured around midrapidity (| eta | < 1.0). In pp collisions, the measured charged-particle multiplicity extends to about six times the average value, while in p-Pb collisions at forward (backward) rapidity a multiplicity corresponding to about three (four) times the average is reached. The psi(2S) yield increases with the charged-particle pseudorapidity density. The ratio of psi(2S) over J/ yield does not show a significant multiplicity dependence in either colliding system, suggesting a similar behavior of J/ and psi(2S) yields with respect to charged-particle pseudorapidity density. Results for the psi(2S) yield and its ratio with respect to J/psi agree with available model calculations.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10303 - Particles and field physics

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2023

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of High Energy Physics

ISSN

1029-8479

e-ISSN

1029-8479

Volume of the periodical

2023

Issue of the periodical within the volume

6

Country of publishing house

IT - ITALY

Number of pages

29

Pages from-to

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UT code for WoS article

001035212500001

EID of the result in the Scopus database

2-s2.0-85163024333