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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10303 - Particles and field physics

Projekt

<a href="/cs/project/LTT18002" target="_blank" >LTT18002: Studium nových vlastností jaderné hmoty v mezinárodním experimentu STAR</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of Science

ISBN

—

ISSN

1824-8039

e-ISSN

—

Počet stran výsledku

7

Strana od-do

310

Název nakladatele

Sissa Medilab srl

Místo vydání

Trieste

Místo konání akce

Ghent

Datum konání akce

10. 7. 2019

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

001069578101032