Measurement of open-charm hadron production in Au plus Au collisions at √SNN=200 GeV with the STAR experiment

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F20%3A00604040" target="_blank" >RIV/61389005:_____/20:00604040 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.22323/1.364.0310" target="_blank" >https://doi.org/10.22323/1.364.0310</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.22323/1.364.0310" target="_blank" >10.22323/1.364.0310</a>

Result language

angličtina

Original language name

Measurement of open-charm hadron production in Au plus Au collisions at √SNN=200 GeV with the STAR experiment

Original language description

In ultrarelativistic heavy-ion collisions at RHIC energies, charm quarks are predominantly produced in initial hard partonic scatterings. Therefore, they experience the entire evolution of the hot and dense medium produced in these collisions, known as the Quark-Gluon Plasma (QGP). The STAR experiment is capable of studying the production of charm quarks and their interactions with the QGP through the reconstruction of the hadronic decays of D-0, D-+/-, D-s(+/-) and Lambda(+/-)(c) hadrons. These measurements are possible thanks to the excellent track pointing resolution of the Heavy Flavor Tracker (HFT). In these proceedings, we present recent results on open-charm hadron measurements in Au+Au collisions at root(NN)-N-S = 200 GeV. In particular, we discuss the nuclear modification factors of D-+/- and D-0 mesons, which provide insights into the energy loss mechanism of charm quarks in the QGP, and the D-0 elliptic and triangular flow coefficients, that probe the charm quark transport in the QGP. We also present the D-s(+/-)/D-0 and Lambda(+/-)(c)/D-0 yield ratios as a function of transverse momentum and collision centrality that help us better understand the charm quark hadronization process in heavy-ion collisions. Finally, we show the rapidity-odd directed flow of D-0 mesons, which is sensitive to the initial tilt of the QGP bulk and can also probe the effects of the initial magnetic field in heavy-ion collisions.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

10303 - Particles and field physics

Project

<a href="/en/project/LTT18002" target="_blank" >LTT18002: Study of new properties of nuclear matter in the international experiment STAR</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2020

Confidentiality

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

Article name in the collection

Proceedings of Science

ISBN

—

ISSN

1824-8039

e-ISSN

—

Number of pages

7

Pages from-to

310

Publisher name

Sissa Medilab srl

Place of publication

Trieste

Event location

Ghent

Event date

Jul 10, 2019

Type of event by nationality

EUR - Evropská akce

UT code for WoS article

001069578101032