Measurement of nuclear effects on psi(2S) production in p-Pb collisions at root s(NN)=8:16 TeV

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F20%3A00531635" target="_blank" >RIV/61389005:_____/20:00531635 - isvavai.cz</a>

Alternative codes found

RIV/68378271:_____/20:00531635 RIV/68407700:21340/20:00342789

Result on the web

<a href="https://doi.org/10.1007/JHEP07(2020)237" target="_blank" >https://doi.org/10.1007/JHEP07(2020)237</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/JHEP07(2020)237" target="_blank" >10.1007/JHEP07(2020)237</a>

Result language

angličtina

Original language name

Measurement of nuclear effects on psi(2S) production in p-Pb collisions at root s(NN)=8:16 TeV

Original language description

Inclusive psi(2S) production is measured in p-Pb collisions at the centre-of-mass energy per nucleon-nucleon pair root s(NN) = 8.16 TeV, using the ALICE detector at the CERN LHC. The production of psi(2S) is studied at forward (2.03< y(cms)<3.53) and backward (-4.46< y(cms)< -2.96) centre-of-mass rapidity and for transverse momentump(T)<12 GeV/cvia the decay to muon pairs. In this paper, we report the integrated as well as they(cms)- andp(T)-differential inclusive production cross sections. Nuclear effects on psi(2S) production are studied via the determination of the nuclear modification factor that shows a strong suppression at both forward and backward centre-of-mass rapidities. Comparisons with corresponding results for inclusive J/psi show a similar suppression for the two states at forward rapidity (p-going direction), but a stronger suppression for psi(2S) at backward rapidity (Pb-going direction). As a function ofp(T), no clear dependence of the nuclear modification factor is found. The relative size of nuclear effects on psi(2S) production compared to J/psi is also studied via the double ratio of production cross sections [sigma(psi(2S))/sigma(J/psi)]pPb/[sigma(psi(2S))/sigma(J/psi)](pp) between p-Pb and pp collisions. The results are compared with theoretical models that include various effects related to the initial and final state of the collision system and also with previous measurements at root s(NN) = 5.02 TeV.

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

10304 - Nuclear physics

Project

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

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2020

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

—

Volume of the periodical

2020

Issue of the periodical within the volume

7

Country of publishing house

US - UNITED STATES

Number of pages

27

Pages from-to

237

UT code for WoS article

000556005800001

EID of the result in the Scopus database

2-s2.0-85088872477