The production of isolated photons in PbPb and pp collisions at √sNN = 5.02 TeV; Journal of High Energy Physics; Vol. 2020, iss. 7

The production of isolated photons in PbPb and pp collisions at √sNN = 5.02 TeV; Journal of High Energy Physics; Vol. 2020, iss. 7

Bibliografische gegevens
Parent link:Journal of High Energy Physics
Vol. 2020, iss. 7.— 2020.— [116, 38 p.]
Coauteur: Национальный исследовательский Томский политехнический университет Исследовательская школа физики высокоэнергетических процессов
Andere auteurs: Sirunyan A. M., Tumasyan A. R., Adam W. Wolfgang, Ambrogi F. Federico, Bergauer Th. Thomas, Zhokin A. S. Aleksandr Sergeevich, Babaev A. A. Anton Anatoljevich, Okhotnikov V. V. Vitaly Vladimirovich
Samenvatting:Title screen
The transverse energy (EγTETγ) spectra of photons isolated from other particles are measured using proton-proton (pp) and lead-lead (PbPb) collisions at the LHC at √sNN = 5.02 TeV with integrated luminosities of 27.4 pb−1 and 404 μb−1 for pp and PbPb data, respectively. The results are presented for photons with 25 < EγTETγ < 200 GeV in the pseudorapidity range |η| < 1.44, and for different centrality intervals for PbPb collisions. Photon production in PbPb collisions is consistent with that in pp collisions scaled by the number of binary nucleon-nucleon collisions, demonstrating that photons do not interact with the quark-gluon plasma. Therefore, isolated photons can provide information about the initial energy of the associated parton in photon+jet measurements. The results are compared with predictions from the next-to-leading-order jetphox generator for different parton distribution functions (PDFs) and nuclear PDFs (nPDFs). The comparisons can help to constrain the nPDFs global fits.
Режим доступа: по договору с организацией-держателем ресурса
Taal:Engels
Gepubliceerd in: 2020
Onderwerpen:
электронный ресурс
труды учёных ТПУ
Hadron-Hadron scattering (experiments)
Heavy-ion collision
Photon production
адрон-адронное рассеяние
Online toegang:https://doi.org/10.1007/JHEP07(2020)116
Formaat: Elektronisch Hoofdstuk
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=663204

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