Production of π0 and η mesons in Cu+Au collisions at root sNN=200GeV
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F18%3A00325039" target="_blank" >RIV/68407700:21340/18:00325039 - isvavai.cz</a>
Result on the web
<a href="https://journals.aps.org/prc/abstract/10.1103/PhysRevC.98.054903" target="_blank" >https://journals.aps.org/prc/abstract/10.1103/PhysRevC.98.054903</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevC.98.054903" target="_blank" >10.1103/PhysRevC.98.054903</a>
Alternative languages
Result language
angličtina
Original language name
Production of π0 and η mesons in Cu+Au collisions at root sNN=200GeV
Original language description
Production of π0 and η mesons has been measured at midrapidity in Cu+Au collisions at root sNN=200GeV. Measurements were performed in π0(η)->γγ decay channel in the 1(2)-20GeV/c transverse momentum range. A strong suppression is observed for π0 and η meson production at high transverse momentum in central Cu+Au collisions relative to the p+p results scaled by the number of nucleon-nucleon collisions. In central collisions the suppression is similar to Au+Au with comparable nuclear overlap. The η/π0 ratio measured as a function of transverse momentum is consistent with mT-scaling parametrization down to pT=2GeV/c, its asymptotic value is constant and consistent with Au+Au and p+p and does not show any significant dependence on collision centrality. Similar results were obtained in hadron-hadron, hadron-nucleus, and nucleus-nucleus collisions as well as in e+e- collisions in a range of collision energies root sNN=3-1800 GeV. This suggests that the quark-gluon-plasma medium produced in Cu+Cu collisions either does not affect the jet fragmentation into light mesons or it affects the π0 and η the same way.
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
<a href="/en/project/LM2015054" target="_blank" >LM2015054: Brookhaven National Laboratory – participation of the Czech Republic</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2018
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 C
ISSN
2469-9985
e-ISSN
2469-9993
Volume of the periodical
98
Issue of the periodical within the volume
5
Country of publishing house
US - UNITED STATES
Number of pages
11
Pages from-to
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UT code for WoS article
000450549200005
EID of the result in the Scopus database
2-s2.0-85057245064