The production of isolated photons in PbPb and pp collisions at √sNN = 5.02 TeV

The production of isolated photons in PbPb and pp collisions at √sNN = 5.02 TeV

Podrobná bibliografie
Parent link:	Journal of High Energy Physics Vol. 2020, iss. 7.— 2020.— [116, 38 p.]
Korporativní autor:	Национальный исследовательский Томский политехнический университет Исследовательская школа физики высокоэнергетических процессов
Další autoři:	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
Shrnutí:	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
Jazyk:	angličtina
Vydáno:	2020
Témata:	электронный ресурс труды учёных ТПУ Hadron-Hadron scattering (experiments) Heavy-ion collision Photon production адрон-адронное рассеяние
On-line přístup:	https://doi.org/10.1007/JHEP07(2020)116
Médium:	Elektronický zdroj Kapitola
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=663204

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