Scaling properties of fractional momentum loss of high-pT hadrons in nucleus-nucleus collisions at √sNN from 62.4 GeV to 2.76 TeV

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F16%3A00501315" target="_blank" >RIV/68378271:_____/16:00501315 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1103/PhysRevC.93.024911" target="_blank" >http://dx.doi.org/10.1103/PhysRevC.93.024911</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevC.93.024911" target="_blank" >10.1103/PhysRevC.93.024911</a>

Result language

angličtina

Original language name

Scaling properties of fractional momentum loss of high-pT hadrons in nucleus-nucleus collisions at √sNN from 62.4 GeV to 2.76 TeV

Original language description

Measurements of the fractional momentum loss (Sloss≡δpT/pT) of high-transverse-momentum-identified hadrons in heavy-ion collisions are presented. Using π0 in Au+Au and Cu+Cu collisions at sNN=62.4 and 200 GeV measured by the PHENIX experiment at the Relativistic Heavy Ion Collider and and charged hadrons in Pb+Pb collisions measured by the ALICE experiment at the Large Hadron Collider, we studied the scaling properties of Sloss as a function of a number of variables: the number of participants, Npart, the number of quark participants, Nqp, the charged-particle density, dNch/dη, and the Bjorken energy density times the equilibration time, ɛBjτ0. We find that the pT, where Sloss has its maximum, varies both with centrality and collision energy. Above the maximum, Sloss tends to follow a power-law function with all four scaling variables. The data at sNN=200 GeV and 2.76 TeV, for sufficiently high particle densities, have a common scaling of Sloss with dNch/dη and ɛBjτ0, lending insight into the physics of parton energy loss.

Czech name

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Czech description

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Type

J_imp - 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

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2016

Confidentiality

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

Name of the periodical

Physical Review C

ISSN

2469-9985

e-ISSN

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Volume of the periodical

93

Issue of the periodical within the volume

2

Country of publishing house

US - UNITED STATES

Number of pages

20

Pages from-to

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UT code for WoS article

000370798600003

EID of the result in the Scopus database

2-s2.0-84959431766