First Observation of the Directed Flow of D-0 and <(D-0)over cap> in Au +Au Collisions at root s(NN)=200 GeV
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F19%3A00509996" target="_blank" >RIV/61389005:_____/19:00509996 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1103/PhysRevLett.123.162301" target="_blank" >https://doi.org/10.1103/PhysRevLett.123.162301</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevLett.123.162301" target="_blank" >10.1103/PhysRevLett.123.162301</a>
Alternative languages
Result language
angličtina
Original language name
First Observation of the Directed Flow of D-0 and <(D-0)over cap> in Au +Au Collisions at root s(NN)=200 GeV
Original language description
We report the first measurement of rapidity-odd directed flow (v(1)) for D-0 and <(D-0)over cap> mesons at midrapidity (vertical bar y vertical bar < 0.8) in Au + Au collisions at. root s(NN )= 200 GeV using the STAR detector at the Relativistic Heavy Ion Collider. In 10-80% Au + Au collisions, the slope of the v(1) rapidity dependence (dv(1)/dy), averaged over D-0 and <(D-0)over cap> mesons, is -0.080 +/- 0.017(stat) +/- 0.016(syst) for transverse momentum p(T) above 1.5 GeV/c. The absolute value of D-0 meson dv(1)/dy is about 25 times larger than that for charged kaons, with 3.4 sigma significance. These data give a unique insight into the initial tilt of the produced matter, and offer constraints on the geometric and transport parameters of the hot QCD medium created in relativistic heavy-ion collisions.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10304 - Nuclear physics
Result continuities
Project
<a href="/en/project/LTT18002" target="_blank" >LTT18002: Study of new properties of nuclear matter in the international experiment STAR</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Review Letters
ISSN
0031-9007
e-ISSN
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Volume of the periodical
123
Issue of the periodical within the volume
16
Country of publishing house
US - UNITED STATES
Number of pages
8
Pages from-to
162301
UT code for WoS article
000490478600004
EID of the result in the Scopus database
2-s2.0-85073815323