UNIVERSAL SUPPRESSION OF HIGH-p(T) HADRONS IN HEAVY-ION COLLISIONS

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F19%3A00334490" target="_blank" >RIV/68407700:21340/19:00334490 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.actaphys.uj.edu.pl/fulltext?series=Sup&vol=12&page=991" target="_blank" >http://www.actaphys.uj.edu.pl/fulltext?series=Sup&vol=12&page=991</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5506/APhysPolBSupp.12.991" target="_blank" >10.5506/APhysPolBSupp.12.991</a>

Jazyk výsledku

angličtina

Název v původním jazyce

UNIVERSAL SUPPRESSION OF HIGH-p(T) HADRONS IN HEAVY-ION COLLISIONS

Popis výsledku v původním jazyce

Data from the ALICE experiment demonstrate universality of suppression of different hadrons produced with high p(T) in heavy-ion collisions (HICs) at the Large Hadron Collider (LHC). Moreover, the recent data from ATLAS on production of prompt charmonia at large p(T) demonstrate a similar attenuation as observed for light hadrons. Such a universality could hardly be explained by the energy-loss mechanism, since the rate of medium induced energy loss strongly correlates with the parton mass. However, the hadronization length has been evaluated to be very short, especially at high p(T), therefore, attenuation of the high-p(T) hadrons originates mainly from the possibility to be broken-up by inelastic collisions during propagation through the dense medium. The survival probability is controlled by the effect of color transparency, which makes the attenuation dependent on the dipole size, related mainly to p(T). This naturally explains the observed universality of hadron suppression. With the same value of the transport coefficient, we predict similar suppression factors R-AA for inclusive production of pions, kaons, protons, charmonia and even bottomonia as a function of p(T )and centrality in good agreement with data.

Název v anglickém jazyce

UNIVERSAL SUPPRESSION OF HIGH-p(T) HADRONS IN HEAVY-ION COLLISIONS

Popis výsledku anglicky

Data from the ALICE experiment demonstrate universality of suppression of different hadrons produced with high p(T) in heavy-ion collisions (HICs) at the Large Hadron Collider (LHC). Moreover, the recent data from ATLAS on production of prompt charmonia at large p(T) demonstrate a similar attenuation as observed for light hadrons. Such a universality could hardly be explained by the energy-loss mechanism, since the rate of medium induced energy loss strongly correlates with the parton mass. However, the hadronization length has been evaluated to be very short, especially at high p(T), therefore, attenuation of the high-p(T) hadrons originates mainly from the possibility to be broken-up by inelastic collisions during propagation through the dense medium. The survival probability is controlled by the effect of color transparency, which makes the attenuation dependent on the dipole size, related mainly to p(T). This naturally explains the observed universality of hadron suppression. With the same value of the transport coefficient, we predict similar suppression factors R-AA for inclusive production of pions, kaons, protons, charmonia and even bottomonia as a function of p(T )and centrality in good agreement with data.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10303 - Particles and field physics

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

2019

Kód důvěrnosti údajů

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

Název statě ve sborníku

Acta Physica Polonica B Proceedings Supplement

ISBN

—

ISSN

1899-2358

e-ISSN

—

Počet stran výsledku

8

Strana od-do

991-998

Název nakladatele

Polish Academy of Arts and Sciences and Jagiellonian University

Místo vydání

Cracow

Místo konání akce

Reggio Calabria

Datum konání akce

26. 8. 2018

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000489104900042