Inclusive-photon production and its dependence on photon isolation in pp collisions at CMS = 13 TeV using 139 fb-1 of ATLAS data
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F23%3A10476268" target="_blank" >RIV/00216208:11320/23:10476268 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=kx4rorVkvy" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=kx4rorVkvy</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/JHEP07(2023)086" target="_blank" >10.1007/JHEP07(2023)086</a>
Alternative languages
Result language
angličtina
Original language name
Inclusive-photon production and its dependence on photon isolation in pp collisions at CMS = 13 TeV using 139 fb-1 of ATLAS data
Original language description
Measurements of differential cross sections are presented for inclusive isolatedphotonproduction in pp collisions at a centre-of-mass energy of 13TeV provided by theLHC and using 139 fb-1 of data recorded by the ATLAS experiment. The cross sectionsare measured as functions of the photon transverse energy in different regions of photonpseudorapidity. The photons are required to be isolated by means of a fixed-cone methodwith two different cone radii. The dependence of the inclusive-photon production on thephoton isolation is investigated by measuring the fiducial cross sections as functions of theisolation-cone radius and the ratios of the differential cross sections with different radii indifferent regions of photon pseudorapidity. The results presented in this paper constitutean improvement with respect to those published by ATLAS earlier: the measurementsare provided for different isolation radii and with a more granular segmentation in photonpseudorapidity that can be exploited in improving the determination of the proton partondistribution functions. These improvements provide a more in-depth test of the theoreticalpredictions. Next-to-leading-order QCD predictions from JETPHOX and SHERPA andnext-to-next-to-leading-order QCD predictions from NNLOJET are compared to the measurements,using several parameterisations of the proton parton distribution functions. Themeasured cross sections are well described by the fixed-order QCD predictions within theexperimental and theoretical uncertainties in most of the investigated phase-space region.
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
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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
Journal of High Energy Physics
ISSN
1029-8479
e-ISSN
1029-8479
Volume of the periodical
2023
Issue of the periodical within the volume
07
Country of publishing house
DE - GERMANY
Number of pages
71
Pages from-to
86
UT code for WoS article
001062449200001
EID of the result in the Scopus database
2-s2.0-85165305389