Beam-Energy Dependence of Charge Separation along the Magnetic Field in Au plus Au Collisions at RHIC

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F14%3A00219311" target="_blank" >RIV/68407700:21340/14:00219311 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61389005:_____/14:00433021

Výsledek na webu

<a href="http://arxiv.org/pdf/1404.1433.pdf" target="_blank" >http://arxiv.org/pdf/1404.1433.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevLett.113.052302" target="_blank" >10.1103/PhysRevLett.113.052302</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Beam-Energy Dependence of Charge Separation along the Magnetic Field in Au plus Au Collisions at RHIC

Popis výsledku v původním jazyce

Local parity-odd domains are theorized to form inside a quark-gluon plasma which has been produced in high-energy heavy-ion collisions. The local parity-odd domains manifest themselves as charge separation along the magnetic field axis via the chiral magnetic effect. The experimental observation of charge separation has previously been reported for heavy-ion collisions at the top RHIC energies. In this Letter, we present the results of the beam-energy dependence of the charge correlations in Au + Au collisions at midrapidity for center-of-mass energies of 7.7, 11.5, 19.6, 27, 39, and 62.4 GeV from the STAR experiment. After background subtraction, the signal gradually reduces with decreased beam energy and tends to vanish by 7.7 GeV. This implies the dominance of hadronic interactions over partonic ones at lower collision energies.

Název v anglickém jazyce

Beam-Energy Dependence of Charge Separation along the Magnetic Field in Au plus Au Collisions at RHIC

Popis výsledku anglicky

Local parity-odd domains are theorized to form inside a quark-gluon plasma which has been produced in high-energy heavy-ion collisions. The local parity-odd domains manifest themselves as charge separation along the magnetic field axis via the chiral magnetic effect. The experimental observation of charge separation has previously been reported for heavy-ion collisions at the top RHIC energies. In this Letter, we present the results of the beam-energy dependence of the charge correlations in Au + Au collisions at midrapidity for center-of-mass energies of 7.7, 11.5, 19.6, 27, 39, and 62.4 GeV from the STAR experiment. After background subtraction, the signal gradually reduces with decreased beam energy and tends to vanish by 7.7 GeV. This implies the dominance of hadronic interactions over partonic ones at lower collision energies.

Druh

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

CEP obor

BG - Jaderná, atomová a molekulová fyzika, urychlovače

OECD FORD obor

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Projekt

<a href="/cs/project/GA13-20841S" target="_blank" >GA13-20841S: Studium jaderné hmoty v ultra-relativistických jaderných srážkách na urychlovači RHIC</a><br>

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

PHYSICAL REVIEW LETTERS

ISSN

0031-9007

e-ISSN

—

Svazek periodika

113

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

1-7

Kód UT WoS článku

000339969600004

EID výsledku v databázi Scopus

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