Электронный каталог

Статья

Chernyshev, A.A.
Single Isolated Photon Production in the NLO&sup(* ) Approximation of the Parton Reggeization Approach / A.A.Chernyshev, V.A.Saleev // Physical Review D [Electronic resource]. – 2024. – Vol. 110, No. 11. – P. 114031. – URL: https://doi.org/10.1103/PhysRevD.110.114031. – Bibliogr.: 51.

The hadroproduction of single isolated photon at high energies is studied within the framework of the next-to-leading order (NLO&sup(* )) approximation of the parton Reggeization approach based on the modified multi-Regge limit of the hard scattering quantum chromodynamics (QCD) amplitudes. The contribution from the LO subprocess QQ¯ → γ and the NLO tree-level corrections QR → γq and QQ¯ → γg are considered. To avoid specific double counting in rapidity between tree-level corrections to the hard scattering coefficient and unintegrated PDFs, a corresponding subtraction scheme is proposed. We demonstrated self-consistency of the parton Reggeization approach using the subtraction scheme. The resffiffiuffi lts of calculations are compared with data from various collaborations in the wide energy range *%S= 24 GeV–13 TeV. We obtained a quite satisfactory agreement with data up to p&sup(γ)&sub(T) / *%S ≃ 0.2–0.3. Predictions for the future SPD NICA experiment were discussed.



ОИЯИ = ОИЯИ (JINR)2024
Спец.(статьи,препринты) = С 323.5г - Масштабная инвариантность. Партонная модель
Спец.(статьи,препринты) = С 324.1д - Квантовая хромодинамика$
Бюллетени = 7/025