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

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F23%3A00575516" target="_blank" >RIV/61389005:_____/23:00575516 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/23:00575516

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10304 - Nuclear physics

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

Journal of High Energy Physics

ISSN

1029-8479

e-ISSN

1029-8479

Svazek periodika

2023

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

29

Strana od-do

147

Kód UT WoS článku

001035212500001

EID výsledku v databázi Scopus

2-s2.0-85163024333