J/ψ photoproduction in ultra-peripheral Pb-Pb and p-Pb collisions with the ALICE detector

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F16%3A00301095" target="_blank" >RIV/68407700:21340/16:00301095 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1016/j.nuclphysbps.2015.10.002" target="_blank" >http://dx.doi.org/10.1016/j.nuclphysbps.2015.10.002</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.nuclphysbps.2015.10.002" target="_blank" >10.1016/j.nuclphysbps.2015.10.002</a>

Result language

angličtina

Original language name

J/ψ photoproduction in ultra-peripheral Pb-Pb and p-Pb collisions with the ALICE detector

Original language description

Ultra-relativistic heavy ions generate strong electromagnetic fields which offer the possibility to study gamma-gamma, gamma-nucleus and gamma-proton processes at the LHC in ultra-peripheral Pb-Pb and p-Pb collisions (UPC). Exclusive photoproduction of J/ψ vector mesons is sensitive to the gluon distribution of the interacting target (proton or nucleus). This process is expected to be sensitive to saturation phenomena and nuclear gluon shadowing. Here we report on the ALICE measurement of J/ψ coherent photoproduction in Pb-Pb UPC at root s<inf>NN</inf>=2.76 TeV at forward and central rapidities. Furthermore, we also present results on the J/ψ photoproduction in p-Pb UPC at root s<inf>NN</inf>=5.02 TeV in the forward and backward rapidities, where the rapidity is measured in the laboratory frame with respect to the proton beam direction. The J/ψ mesons have been identified through their leptonic decays.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BG - Nuclear, atomic and molecular physics, accelerators

OECD FORD branch

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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

2016

Confidentiality

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

Name of the periodical

Nuclear and Particle Physics Proceedings

ISSN

2405-6014

e-ISSN

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Volume of the periodical

273-275

Issue of the periodical within the volume

Apr

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

3

Pages from-to

2599-2601

UT code for WoS article

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EID of the result in the Scopus database

2-s2.0-84973121780