Rapidity and centrality dependence of proton and antiproton production from Au-197+Au-197 collisions at root S-NN=130 GeV

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F04%3A00110194" target="_blank" >RIV/61389005:_____/04:00110194 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Rapidity and centrality dependence of proton and antiproton production from Au-197+Au-197 collisions at root S-NN=130 GeV

Original language description

We report on the rapidity and centrality dependence of proton and antiproton transverse mass distributions from Au-197+Au-197 collisions at roots(NN)=130 GeV as measured by the STAR experiment at the Relativistic Heavy Ion Collider (RHIC). Our results are from the rapidity and transverse momentum range of parallel toyparallel to<0.5 and 0.35<p(t)<1.00 GeV/c. For both protons and antiprotons, transverse mass distributions become more convex from peripheral to central collisions demonstrating characteristics of collective expansion. The measured rapidity distributions and the mean transverse momenta versus rapidity are flat within /y/<0.5. Comparisons of our data with results from model calculations indicate that in order to obtain a consistent picture of the proton (antiproton) yields and transverse mass distributions the possibility of prehadronic collective expansion may have to be taken into account.

Czech name

Závislost na rapiditě a centralitě protonové a antiprotonové produkce Au+Au srážek při energii 130 GeV

Czech description

Měření rozdělení protonové a antiprotonové příčné hmoty v závislosti na rapiditě a centralitě v Au+Au srážkách při energii 130 GeV v experimentu STAR na RHIC. Rozdělení příčné hmoty pro protony a antiprotony se stává víc konvexní od periferálních k centrálním srážkám což demonstruje charastritiky kolektivní expanze.

Type

J_x - 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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Project

<a href="/en/project/ME%20475" target="_blank" >ME 475: Multi-boson effects at RHIC</a><br>

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2004

Confidentiality

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

Name of the periodical

Physical Review

ISSN

0556-2813

e-ISSN

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Volume of the periodical

70

Issue of the periodical within the volume

4

Country of publishing house

US - UNITED STATES

Number of pages

1

Pages from-to

041901

UT code for WoS article

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EID of the result in the Scopus database

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