Beam-energy dependence of the directed flow of deuterons in Au plus Au collisions

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F20%3A00346302" target="_blank" >RIV/68407700:21340/20:00346302 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1103/PhysRevC.102.044906" target="_blank" >https://doi.org/10.1103/PhysRevC.102.044906</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevC.102.044906" target="_blank" >10.1103/PhysRevC.102.044906</a>

Result language

angličtina

Original language name

Beam-energy dependence of the directed flow of deuterons in Au plus Au collisions

Original language description

We present a measurement of the first-order azimuthal anisotropy v(1) of deuterons from Au + Au collisions at root s(NN) = 7.7, 11.5, 14.5, 19.6, 27, and 39 GeV recorded with the STAR experiment at the Relativistic Heavy Ion Collider (RHIC). The energy dependence of the v(1)(y) slope, dv(1)/dy vertical bar y=0, for deuterons, where y is the rapidity, is extracted for semicentral collisions (10%-40% centrality) and compared with that of protons. While the v(1)(y) slopes of protons are generally negative for root s(NN) > 10 GeV, those for deuterons are consistent with zero, a strong enhancement of the v(1)(y) slope of deuterons is seen at the lowest collision energy (the largest baryon density) at root s(NN) = 7.7 GeV. In addition, we report the transverse momentum dependence of v(1) for protons and deuterons. The experimental results are compared with transport and coalescence models.

Czech name

—

Czech description

—

Type

J_ost - Miscellaneous article in a specialist periodical

CEP classification

—

OECD FORD branch

10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

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

Publication year

2020

Confidentiality

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

Name of the periodical

Physical Review C

ISSN

0556-2813

e-ISSN

—

Volume of the periodical

102

Issue of the periodical within the volume

4

Country of publishing house

US - UNITED STATES

Number of pages

8

Pages from-to

—

UT code for WoS article

000579351900005

EID of the result in the Scopus database

2-s2.0-85094100808