Observation of D-s(+/-)/D-0 Enhancement in Au plus 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_____%2F21%3A00545194" target="_blank" >RIV/61389005:_____/21:00545194 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21340/21:00351249
Result on the web
<a href="https://doi.org/10.1103/PhysRevLett.127.092301" target="_blank" >https://doi.org/10.1103/PhysRevLett.127.092301</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevLett.127.092301" target="_blank" >10.1103/PhysRevLett.127.092301</a>
Alternative languages
Result language
angličtina
Original language name
Observation of D-s(+/-)/D-0 Enhancement in Au plus Au Collisions at root s(NN)=200 GeV
Original language description
We report on the first measurement of charm-strange meson D-s(+/-) production at midrapidity in Au + Au collisions at root s(NN) = 200 GeV from the STAR experiment. The yield ratio between strange (D-s(+/-)) and nonstrange (D-0) open-charm mesons is presented and compared to model calculations. A significant enhancement, relative to a PYTHIA simulation of p + p collisions, is observed in the D-s(+/-)/D-0 yield ratio in Au + Au collisions over a large range of collision centralities. Model calculations incorporating abundant strange-quark production in the quark-gluon plasma and coalescence hadronization qualitatively reproduce the data. The transverse-momentum integrated yield ratio of D-s(+/-)/D-0 at midrapidity is consistent with a prediction from a statistical hadronization model with the parameters constrained by the yields of light and strange hadrons measured at the same collision energy. These results suggest that the coalescence of charm quarks with strange quarks in the quark-gluon plasma plays an important role in D-s(+/-)-meson production in 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
—
OECD FORD branch
10303 - Particles and field physics
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2021
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
1079-7114
Volume of the periodical
127
Issue of the periodical within the volume
9
Country of publishing house
US - UNITED STATES
Number of pages
8
Pages from-to
092301
UT code for WoS article
000689744100002
EID of the result in the Scopus database
2-s2.0-85114139855