First Measurement of Lambda(c) Baryon Production 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_____%2F20%3A00524454" target="_blank" >RIV/61389005:_____/20:00524454 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21340/20:00342808
Result on the web
<a href="https://doi.org/10.1103/PhysRevLett.124.172301" target="_blank" >https://doi.org/10.1103/PhysRevLett.124.172301</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevLett.124.172301" target="_blank" >10.1103/PhysRevLett.124.172301</a>
Alternative languages
Result language
angličtina
Original language name
First Measurement of Lambda(c) Baryon Production in Au plus Au Collisions at root s(NN)=200 GeV
Original language description
We report on the first measurement of the charmed baryon Lambda(+/-)(c) production at midrapidity (vertical bar y vertical bar < 1) in Au + Au collisions root s(NN) = 200 GeV collected by the STAR experiment at the Relativistic Heavy Ion Collider. The A(c)/D-0 [denoting (Lambda(+)(c) + Lambda(-)(c))/(D-0 + (D) over bar (0))] yield ratio is measured to be 1.08 +/- 0.16 (stat) 0.26 (sys) in the 0%-20% most central Au + Au collisions for the transverse momentum (p(T)) range 3 < p(T) < 6 GeV/c. This is significantly larger than the PYTHIA model calculations for p + p collisions. The measured A(c)/D-0 ratio, as a function of p(T) and collision centrality, is comparable to the baryon-to-meson ratios for light and strange hadrons in Au + Au collisions. Model calculations including coalescence hadronization for charmed baryon and meson formation reproduce the features of our measured Lambda(c)/D-0 ratio.
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
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
2020
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
124
Issue of the periodical within the volume
17
Country of publishing house
US - UNITED STATES
Number of pages
7
Pages from-to
172301
UT code for WoS article
000529840700004
EID of the result in the Scopus database
2-s2.0-85084355470