Measurement of muon pairs produced via γγ scattering in nonultraperipheral Pb + Pb collisions at SQUARE ROOTsNN = 5.02 TeV with the ATLAS detector
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F23%3A10476626" target="_blank" >RIV/00216208:11320/23:10476626 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=qJBFRXw3W6" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=qJBFRXw3W6</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevC.107.054907" target="_blank" >10.1103/PhysRevC.107.054907</a>
Alternative languages
Result language
angličtina
Original language name
Measurement of muon pairs produced via γγ scattering in nonultraperipheral Pb + Pb collisions at SQUARE ROOTsNN = 5.02 TeV with the ATLAS detector
Original language description
Results of a measurement of dimuon photoproduction in nonultraperipheral Pb + Pb collisions at SQUARE ROOTsNN = 5.02 TeV are presented. Themeasurement uses ATLAS data from the 2015 and 2018 Pb + Pb data-taking periodsat the LHC with an integrated luminosity of 1.94 nb-1. The γγ RIGHTWARDS ARROW μ+μ- pairs are identified via selections onpair momentum asymmetry and acoplanarity. Differential cross sections for dimuon production are measured indifferent centrality, average muon momentum, and pair rapidity intervals as functions of acoplanarity and kUP TACK , thetransverse momentum kick of one muon relative to the other. Measurements are also made as a function of therapidity separation of the muons and the angle of the muon pair relative to the second-order event plane to testwhether magnetic fields generated in the quark-gluon plasma affect the measured muons. A prior observationof a centrality-dependent broadening of the acoplanarity distribution is confirmed. Furthermore, the improvedprecision of the measurement reveals a depletion in the number of pairs having small acoplanarity or kUP TACK values inmore central collisions. The acoplanarity distributions in a given centrality interval are observed to vary with themean pT of the muons in the pair, but the kUP TACK distributions do not. Comparisons with recent theoretical predictions are made. The predicted trends associated with effects of magnetic fields on the dimuons are not observed.
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
10300 - Physical sciences
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2023
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
107
Issue of the periodical within the volume
May 05
Country of publishing house
US - UNITED STATES
Number of pages
42
Pages from-to
54907
UT code for WoS article
001021392200001
EID of the result in the Scopus database
2-s2.0-85166613350