A heuristic description of high- pT hadron production in heavy ion collisions

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F15%3A00226630" target="_blank" >RIV/68407700:21340/15:00226630 - isvavai.cz</a>

Výsledek na webu

<a href="http://link.springer.com/article/10.1140%2Fepjc%2Fs10052-015-3319-7" target="_blank" >http://link.springer.com/article/10.1140%2Fepjc%2Fs10052-015-3319-7</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1140/epjc/s10052-015-3319-7" target="_blank" >10.1140/epjc/s10052-015-3319-7</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A heuristic description of high- pT hadron production in heavy ion collisions

Popis výsledku v původním jazyce

Using a simplified model for in-medium dipole evolution accounting for color filtering effects we study the production of hadrons at large transverse momenta pT in heavy ion collisions. In the framework of this model, several important sources of the nuclear suppression observed recently at RHIC and LHC have been analyzed. A short production length of the leading hadron lp causes a strong onset of color transparency effects, manifesting themselves as a steep rise of the nuclear modification factor RAA(pT) at large hadron pT . The dominance of quarks with higher lp leads to a weaker suppression at RHIC than the one observed at LHC. In the RHIC kinematic region we include an additional suppression factor, steeply falling with pT , which is tightly related to the energy conservation constraints. This is irrelevant at LHC up to pT<~70 GeV , while it causes a rather flat pT dependence of the RAA(pT) factor at RHIC c.m. energy sroot =200 GeV and even an increasing suppression with pT at sroo

Název v anglickém jazyce

A heuristic description of high- pT hadron production in heavy ion collisions

Popis výsledku anglicky

Using a simplified model for in-medium dipole evolution accounting for color filtering effects we study the production of hadrons at large transverse momenta pT in heavy ion collisions. In the framework of this model, several important sources of the nuclear suppression observed recently at RHIC and LHC have been analyzed. A short production length of the leading hadron lp causes a strong onset of color transparency effects, manifesting themselves as a steep rise of the nuclear modification factor RAA(pT) at large hadron pT . The dominance of quarks with higher lp leads to a weaker suppression at RHIC than the one observed at LHC. In the RHIC kinematic region we include an additional suppression factor, steeply falling with pT , which is tightly related to the energy conservation constraints. This is irrelevant at LHC up to pT<~70 GeV , while it causes a rather flat pT dependence of the RAA(pT) factor at RHIC c.m. energy sroot =200 GeV and even an increasing suppression with pT at sroo

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BF - Elementární částice a fyzika vysokých energií

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

European Physical Journal C

ISSN

1434-6044

e-ISSN

—

Svazek periodika

75

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

15

Strana od-do

1-15

Kód UT WoS článku

000354547100001

EID výsledku v databázi Scopus

2-s2.0-84924115033