System-size dependence of transverse momentum correlations at root s(NN)=62.4 and 200 GeV at the BNL Relativistic Heavy Ion Collider
Result description
We present a study of the average transverse momentum (p(t)) fluctuations and p(t) correlations for charged particles produced in Cu + Cu collisions at midrapidity for root s(NN) = 62.4 and 200 GeV. These results are compared with those published for Au+ Au collisions at the same energies, to explore the system size dependence. In addition to the collision energy and system size dependence, the p(t) correlation results have been studied as functions of the collision centralities, the ranges in p(t), the pseudorapidity eta, and the azimuthal angle phi. The square root of the measured p(t) correlations when scaled by mean p(t) is found to be independent of both colliding beam energy and system size studied. Transport-based model calculations are found to have a better quantitative agreement with the measurements compared to models which incorporate only jetlike correlations.
Keywords
BY-EVENT FLUCTUATIONSPLUS PB COLLISIONSQUARK-GLUON PLASMAAU-AU COLLISIONSMEAN-P(T) FLUCTUATIONSNUCLEAR COLLISIONSSIGNATURESDYNAMICSMODELRATIO
The result's identifiers
Result code in IS VaVaI
Alternative codes found
RIV/61389005:_____/13:00395257
Result on the web
DOI - Digital Object Identifier
Alternative languages
Result language
angličtina
Original language name
System-size dependence of transverse momentum correlations at root s(NN)=62.4 and 200 GeV at the BNL Relativistic Heavy Ion Collider
Original language description
We present a study of the average transverse momentum (p(t)) fluctuations and p(t) correlations for charged particles produced in Cu + Cu collisions at midrapidity for root s(NN) = 62.4 and 200 GeV. These results are compared with those published for Au+ Au collisions at the same energies, to explore the system size dependence. In addition to the collision energy and system size dependence, the p(t) correlation results have been studied as functions of the collision centralities, the ranges in p(t), the pseudorapidity eta, and the azimuthal angle phi. The square root of the measured p(t) correlations when scaled by mean p(t) is found to be independent of both colliding beam energy and system size studied. Transport-based model calculations are found to have a better quantitative agreement with the measurements compared to models which incorporate only jetlike correlations.
Czech name
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Czech description
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Classification
Type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BF - Elementary particle theory and high energy physics
OECD FORD branch
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Result continuities
Project
GA13-20841S: Study of nuclear matter in ultra-relativistic heavy-ion collisions at RHIC
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Review C
ISSN
0556-2813
e-ISSN
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Volume of the periodical
87
Issue of the periodical within the volume
6
Country of publishing house
US - UNITED STATES
Number of pages
12
Pages from-to
1-12
UT code for WoS article
000320608700004
EID of the result in the Scopus database
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Result type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP
BF - Elementary particle theory and high energy physics
Year of implementation
2013