Suppression of Back-to-Back Hadron Pairs at Forward Rapidity in d plus Au Collisions at root S(NN)=200 GeV

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F11%3A10109335" target="_blank" >RIV/00216208:11320/11:10109335 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1103/PhysRevLett.107.172301" target="_blank" >http://dx.doi.org/10.1103/PhysRevLett.107.172301</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevLett.107.172301" target="_blank" >10.1103/PhysRevLett.107.172301</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Suppression of Back-to-Back Hadron Pairs at Forward Rapidity in d plus Au Collisions at root S(NN)=200 GeV

Popis výsledku v původním jazyce

Back-to-back hadron pair yields in d + Au and p + p collisions at root S(NN) = 200 GeV were measured with the PHENIX detector at the Relativistic Heavy Ion Collider. Rapidity separated hadron pairs were detected with the trigger hadron at pseudorapidityvertical bar eta vertical bar { 0: 35 and the associated hadron at forward rapidity (deuteron direction, 3.0{ eta { 3.8). Pairs were also detected with both hadrons measured at forward rapidity; in this case, the yield of back-to-back hadron pairs in d +Au collisions with small impact parameters is observed to be suppressed by a factor of 10 relative to p + p collisions. The kinematics of these pairs is expected to probe partons in the Au nucleus with a low fraction x of the nucleon momenta, where thegluon densities rise sharply. The observed suppression as a function of nuclear thickness, p(T), and eta points to cold nuclear matter effects arising at high parton densities

Název v anglickém jazyce

Suppression of Back-to-Back Hadron Pairs at Forward Rapidity in d plus Au Collisions at root S(NN)=200 GeV

Popis výsledku anglicky

Back-to-back hadron pair yields in d + Au and p + p collisions at root S(NN) = 200 GeV were measured with the PHENIX detector at the Relativistic Heavy Ion Collider. Rapidity separated hadron pairs were detected with the trigger hadron at pseudorapidityvertical bar eta vertical bar { 0: 35 and the associated hadron at forward rapidity (deuteron direction, 3.0{ eta { 3.8). Pairs were also detected with both hadrons measured at forward rapidity; in this case, the yield of back-to-back hadron pairs in d +Au collisions with small impact parameters is observed to be suppressed by a factor of 10 relative to p + p collisions. The kinematics of these pairs is expected to probe partons in the Au nucleus with a low fraction x of the nucleon momenta, where thegluon densities rise sharply. The observed suppression as a function of nuclear thickness, p(T), and eta points to cold nuclear matter effects arising at high parton densities

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/LA08015" target="_blank" >LA08015: Spolupráce ČR s CERN</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2011

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

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Svazek periodika

107

Číslo periodika v rámci svazku

17

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

172301, 1-7

Kód UT WoS článku

000296374100003

EID výsledku v databázi Scopus

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