Suppression of Excited gamma States Relative to the Ground State in Pb-Pb Collisions at root s(NN)=5.02 TeV
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F18%3A10377228" target="_blank" >RIV/00216208:11320/18:10377228 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1103/PhysRevLett.120.142301" target="_blank" >https://doi.org/10.1103/PhysRevLett.120.142301</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevLett.120.142301" target="_blank" >10.1103/PhysRevLett.120.142301</a>
Alternative languages
Result language
angličtina
Original language name
Suppression of Excited gamma States Relative to the Ground State in Pb-Pb Collisions at root s(NN)=5.02 TeV
Original language description
The relative yields of gamma mesons produced in pp and Pb-Pb collisions at root s(NN) = 5.02 TeV and reconstructed via the dimuon decay channel are measured using data collected by the CMS experiment. Double ratios are formed by comparing the yields of the excited states, gamma(2S) and gamma(3S), to the ground state, gamma(1S), in both Pb-Pb and pp collisions at the same center-of-mass energy. The double ratios, [gamma(nS)/gamma(1S)](Pb-Pb)/[gamma(nS)/gamma(1S)](PP), are measured to be 0.308 +/- 0.055(stat) +/- 0.019(syst) for the gamma(2S) and less than 0.26 at 95% confidence level for the gamma(3S). No significant gamma(3S) signal is found in the Pb-Pb data. The double ratios are studied as a function of collision centrality, as well as gamma transverse momentum and rapidity. No significant dependencies are observed.
Czech name
—
Czech description
—
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
10304 - Nuclear physics
Result continuities
Project
<a href="/en/project/LG14004" target="_blank" >LG14004: Cooperation of Czech Republic with JINR Dubna in the theoretical and nuclear physics and application of nuclear methods in other fields</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
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 Letters
ISSN
0031-9007
e-ISSN
—
Volume of the periodical
120
Issue of the periodical within the volume
14
Country of publishing house
US - UNITED STATES
Number of pages
17
Pages from-to
—
UT code for WoS article
000428966400003
EID of the result in the Scopus database
2-s2.0-85045020611