High-pT hadrons in nuclear collisions: from RHIC to LHC

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F12%3A00199911" target="_blank" >RIV/68407700:21340/12:00199911 - isvavai.cz</a>
Result on the web
<a href="http://www.fis.utfsm.cl/HEP-2012/B2-viernes/Nemcik.pdf" target="_blank" >http://www.fis.utfsm.cl/HEP-2012/B2-viernes/Nemcik.pdf</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
High-pT hadrons in nuclear collisions: from RHIC to LHC
Original language description
We study high-pT hadron production in heavy-ion collisions and analyze several sources of the observed nuclear suppression by experiments at RHIC and LHC. Short production length l_p of a hadron produced during hadronization process causes a relation between the nuclear suppression of high-pT hadrons and survival probability of a colorless dipole propagating through a dense medium. This leads to a steep rise with pT of the nuclear modification factor R_{AA}(pT) due to color transparency effects. In comparison with LHC a dominance of quarks with larger l_p leads to a smaller suppression at RHIC where we include also the suppression factor falling steeply with x_T related to the energy conservation constraints. This factor is irrelevant at LHC but causesrather flat pT dependence of R_{AA} at RHIC. Calculations contain only medium density adjustment and we found the transport coefficient to be hat{q}_0 = 0.30-0.45 GeV^2/fm corresponding to sqrt{s} = 62-200 GeV at RHIC and hat{q}_0 = 0
Czech name
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Czech description
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Project
<a href="/en/project/LA08015" target="_blank" >LA08015: Collaboration of the Czech Republic with CERN</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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