Measurement of Long-Range Angular Correlation and Quadrupole Anisotropy of Pions and (Anti)Protons in Central d+Au Collisions at root s_NN =200 GeV

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F15%3A00229767" target="_blank" >RIV/68407700:21340/15:00229767 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1103/PhysRevLett.114.192301" target="_blank" >http://dx.doi.org/10.1103/PhysRevLett.114.192301</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevLett.114.192301" target="_blank" >10.1103/PhysRevLett.114.192301</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Measurement of Long-Range Angular Correlation and Quadrupole Anisotropy of Pions and (Anti)Protons in Central d+Au Collisions at root s_NN =200 GeV

Popis výsledku v původním jazyce

We present azimuthal angular correlations between charged hadrons and energy deposited in calorimeter towers in central d+Au and minimum bias p+p collisions at root s_NN =200??GeV . The charged hadron is measured at midrapidity |?|<0.35 , and the energyis measured at large rapidity (-3.7<?<-3.1 , Au-going direction). An enhanced near-side angular correlation across |??|>2.75 is observed in d+Au collisions. Using the event plane method applied to the Au-going energy distribution, we extract the anisotropy strength v 2 for inclusive charged hadrons at midrapidity up to p T =4.5??GeV/c . We also present the measurement of v 2 for identified ?? and (anti)protons in central d+Au collisions, and observe a mass-ordering pattern similar to that seen in heavy-ion collisions. These results are compared with viscous hydrodynamic calculations and measurements from p+Pb at root s_NN =5.02??TeV . The magnitude of the mass ordering in d+Au is found to be smaller than that in p+Pb collisions, which m

Název v anglickém jazyce

Measurement of Long-Range Angular Correlation and Quadrupole Anisotropy of Pions and (Anti)Protons in Central d+Au Collisions at root s_NN =200 GeV

Popis výsledku anglicky

We present azimuthal angular correlations between charged hadrons and energy deposited in calorimeter towers in central d+Au and minimum bias p+p collisions at root s_NN =200??GeV . The charged hadron is measured at midrapidity |?|<0.35 , and the energyis measured at large rapidity (-3.7<?<-3.1 , Au-going direction). An enhanced near-side angular correlation across |??|>2.75 is observed in d+Au collisions. Using the event plane method applied to the Au-going energy distribution, we extract the anisotropy strength v 2 for inclusive charged hadrons at midrapidity up to p T =4.5??GeV/c . We also present the measurement of v 2 for identified ?? and (anti)protons in central d+Au collisions, and observe a mass-ordering pattern similar to that seen in heavy-ion collisions. These results are compared with viscous hydrodynamic calculations and measurements from p+Pb at root s_NN =5.02??TeV . The magnitude of the mass ordering in d+Au is found to be smaller than that in p+Pb collisions, which m

Druh

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

CEP obor

BF - Elementární částice a fyzika vysokých energií

OECD FORD obor

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Projekt

<a href="/cs/project/LG13031" target="_blank" >LG13031: Spolupráce ČR s CERN</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

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

114

Číslo periodika v rámci svazku

19

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

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Kód UT WoS článku

000354363600005

EID výsledku v databázi Scopus

2-s2.0-84930505330