Kaon femtoscopy in root s(NN)=200 GeV central Au plus Au collsions at STAR

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F14%3A00429960" target="_blank" >RIV/61389005:_____/14:00429960 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1088/1742-6596/509/1/012042" target="_blank" >http://dx.doi.org/10.1088/1742-6596/509/1/012042</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1742-6596/509/1/012042" target="_blank" >10.1088/1742-6596/509/1/012042</a>

Result language

angličtina

Original language name

Kaon femtoscopy in root s(NN)=200 GeV central Au plus Au collsions at STAR

Original language description

Three-dimensional analyses of the pion source revealed a heavy, non-Gaussian tail in the direction of the pair transverse momentum. The interpretation of these pion sources in terms of pure hydrodynamical evolution is, however, complicated by the strongcontribution of feed-down from long-lived resonances to the source. On the other hand, kaons provide a much cleaner probe of the expanding fireball. Here we present a recent three-dimensional kaon correlation analysis using Cartesian harmonics decomposition technique. In contrary to pions, the three-dimensional source function of kaons is largely Gaussian. Comparison with thermal simulations and a hydrokinetic model show that resonance decays, as well as non-zero emission duration and/or rescattering inthe hadronic phase play an important role. The analysis of the three dimensional extent of the kaon source w.r.t. the pair transverse momentum favors the hydrokinetic model over the exact m(T)-scaling featured by perfect hydrodynamical m

Czech name

—

Czech description

—

Type

D - Article in proceedings

CEP classification

BG - Nuclear, atomic and molecular physics, accelerators

OECD FORD branch

—

Project

<a href="/en/project/LA09013" target="_blank" >LA09013: Participation of the Czech Republic in the STAR experiment at Brookhaven National Laboratory, U.S.A.</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2014

Confidentiality

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

Article name in the collection

Journal of Physics Conference Series

ISBN

—

ISSN

1742-6588

e-ISSN

—

Number of pages

4

Pages from-to

—

Publisher name

IOP Publishing Ltd

Place of publication

Bristol

Event location

Birmingham

Event date

Jul 22, 2013

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000337194300042