Open-Charm Hadron Measurements in Au+Au Collisions at root s(NN) = 200 GeV by the STAR Experiment

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F19%3A00509939" target="_blank" >RIV/61389005:_____/19:00509939 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.3390/universe5090196" target="_blank" >https://doi.org/10.3390/universe5090196</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/universe5090196" target="_blank" >10.3390/universe5090196</a>

Result language

angličtina

Original language name

Open-Charm Hadron Measurements in Au+Au Collisions at root s(NN) = 200 GeV by the STAR Experiment

Original language description

Study of the open-charm hadron production in heavy-ion collisions is crucial for understanding the properties of the Quark-Gluon Plasma. In these papers, we report on a selection of recent STAR measurements of open-charm hadrons in Au+Au collisions at . root s(NN) = 200 GeV, using the Heavy-Flavor Tracker. In particular, the nuclear modification factors of D-0 and D-+/- mesons, elliptic and directed flow of D-0 mesons, D-s/D-0 and Lambda(c)/D(0)yield ratios are discussed. The observed suppression of D(0 )and D-+/- mesons suggests strong interactions of the charm quarks with the QGP. The measured elliptic flow of D-0 mesons is large and follows the NCQ scaling, suggesting that charm quarks may be close to thermal equilibrium with the QGP medium. Both D-s/D-0 and Lambda(c) /D(0)yield ratios are found to be enhanced in Au+Au collisions. The enhancement can be explained by models incorporating coalescence hadronization of charm quarks. In addition, the directed flow of the D-0 mesons is measured to be negative and larger than that of light-flavor mesons which is in a qualitative agreement with hydrodynamic model predictions with a tilted QGP bulk.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10303 - Particles and field physics

Project

<a href="/en/project/EF16_013%2F0001569" target="_blank" >EF16_013/0001569: Brookhaven National Laboratory - participation of the Czech Republic</a><br>

Continuities

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

Publication year

2019

Confidentiality

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

Name of the periodical

UNIVERSE

ISSN

2218-1997

e-ISSN

—

Volume of the periodical

5

Issue of the periodical within the volume

9

Country of publishing house

CH - SWITZERLAND

Number of pages

9

Pages from-to

196

UT code for WoS article

000489177000007

EID of the result in the Scopus database

2-s2.0-85073114022