Suppression of psi(2S) production in p-Pb collisions at root s(NN)=5.02 TeV

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F14%3A00440761" target="_blank" >RIV/68378271:_____/14:00440761 - isvavai.cz</a>
Alternative codes found
RIV/61389005:_____/14:00440761
Result on the web
<a href="http://dx.doi.org/10.1007/JHEP12(2014)073" target="_blank" >http://dx.doi.org/10.1007/JHEP12(2014)073</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/JHEP12(2014)073" target="_blank" >10.1007/JHEP12(2014)073</a>

Result language
angličtina
Original language name
Suppression of psi(2S) production in p-Pb collisions at root s(NN)=5.02 TeV
Original language description
Abstract: The ALICE Collaboration has studied the inclusive production of the charmonium state psi(2S) in proton-lead (p-Pb) collisions at the nucleon-nucleon centre of mass energy (formula presented.) = 5.02 TeV at the CERN LHC. The measurement was performed at forward (2.03 < ycms< 3.53) and backward (−4.46 < ycms< −2.96) centre of mass rapidities, studying the decays into muon pairs. In this paper, we present the inclusive production cross sections σψ(2S), both integrated and as a function of the transverse momentum pT, for the two ycms domains. The results are compared to those obtained for the 1S vector state (J/psi), by showing the ratios between the production cross sections, as well as the double ratios between p-Pb and proton-proton collisions. Finally, the nuclear modification factor for inclusive ψ(2S) is evaluated and compared to the measurement of the same quantity for J/ψ and to theoretical models including parton shadowing and coherent energy loss mechanisms. The results show a significantly larger suppression of the psi(2S) compared to that measured for J/ψ and to models. These observations represent a clear indication for sizeable final state effects on psi(2S) production
Czech name
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Czech description
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Type
J<sub>imp</sub> - 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
<a href="/en/project/LG13031" target="_blank" >LG13031: Collaboration of the Czech Republic with CERN</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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