Beam energy dependence of moments of the net-charge multiplicity distributions in Au+Au collisions at RHIC
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F14%3A00219315" target="_blank" >RIV/68407700:21340/14:00219315 - isvavai.cz</a>
Result on the web
<a href="http://arxiv.org/pdf/1402.1558.pdf" target="_blank" >http://arxiv.org/pdf/1402.1558.pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevLett.113.092301" target="_blank" >10.1103/PhysRevLett.113.092301</a>
Alternative languages
Result language
angličtina
Original language name
Beam energy dependence of moments of the net-charge multiplicity distributions in Au+Au collisions at RHIC
Original language description
We report the first measurements of the moments -- mean (M), variance (?2), skewness (S) and kurtosis (?) -- of the net-charge multiplicity distributions at mid-rapidity in Au+Au collisions at seven energies, ranging from sNNroot = 7.7 to 200 GeV, as a part of the Beam Energy Scan program at RHIC. The moments are related to the thermodynamic susceptibilities of net-charge, and are sensitive to the proximity of the QCD critical point. We compare the products of the moments, ?2/M, S? and ??2 with the expectations from Poisson and negative binomial distributions (NBD). The S? values deviate from Poisson and are close to NBD baseline, while the ??2 values tend to lie between the two. Within the present uncertainties, our data do not show non-monotonic behavior as a function of collision energy. These measurements provide a distinct way of determining the freeze-out parameters in heavy-ion collisions by comparing with theoretical models.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BG - Nuclear, atomic and molecular physics, accelerators
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GA13-20841S" target="_blank" >GA13-20841S: Study of nuclear matter in ultra-relativistic heavy-ion collisions at RHIC</a><br>
Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2014
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 LETTERS
ISSN
0031-9007
e-ISSN
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Volume of the periodical
113
Issue of the periodical within the volume
Aug
Country of publishing house
US - UNITED STATES
Number of pages
7
Pages from-to
1-7
UT code for WoS article
000341301800002
EID of the result in the Scopus database
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