Radiative corrections to the subprocess of annihilation of quark-antiquark pair of prompt photon production in proton-proton collisions at NICA energies √(s)= 10 GeV
Abstract
In this work, a comprehensive theoretical and numerical study of the quantum-chromodynamic and quantum-electrodynamic radiative corrections: 1. qq̅ → qq̅γ, 2. qq̅ → ggγ, and 3. qq̅ → gγγ to the annihilation of a quark-antiquark pair qq̅ → gγ of prompt photon production in proton-proton collisions at NICA energies √s = 10 GeV was performed. The differential cross-sections and double spin asymmetries ALL of the radiative corrections were investigated analytically using the FeynCalc and modulated in PYTHIA 8.316. Radiative corrections are significant at low collision energies of protons √s and small transverse momentum of photons pT. It was shown that radiative corrections to the annihilation of a quark-antiquark pair process satisfy the following relations: 2. σ√s(qq̅ → ggγ) > 1. σ√s(qq̅ → qq̅γ) > 3. σ√s(qq̅ → gγγ) 1. (dσ(qq̅ → qq̅γ))/dpT2 > 3. (dσ(qq̅ → gγγ))/dpT2 > 2. (dσ(qq̅ → ggγ))/dpT2 The polarization of colliding protons has almost the same effect on processes 1. qq̅ → qq̅γ, 2. qq̅ → ggγ, and 3. qq̅ → gγγ and in this case above indicated relation is also satisfied. A direct comparison between strict leading order analytical calculations in FeynCalc and PYTHIA 8.316 modulations revealed excellent agreement in the central kinematic regions.
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BibTeX
@misc{alizada2026radiative,
title = {{Radiative corrections to the subprocess of annihilation of quark-antiquark pair of prompt photon production in proton-proton collisions at NICA energies $\sqrt\mathbfs$= 10 GeV}},
author = {Mohsun R. Alizada and Azar I. Ahmadov},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.01552},
eprint = {2610.01552},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.01552},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Radiative corrections to the subprocess of annihilation of quark-antiquark pair of prompt photon production in proton-proton collisions at NICA energies √(s)= 10 GeV
AU - Mohsun R. Alizada
AU - Azar I. Ahmadov
PY - 2026
DA - 2026/10/01
PB - arXiv
DO - 10.48550/arxiv.2610.01552
UR - https://arxiv.org/abs/2610.01552
AB - In this work, a comprehensive theoretical and numerical study of the quantum-chromodynamic and quantum-electrodynamic radiative corrections: 1. qq̅ → qq̅γ, 2. qq̅ → ggγ, and 3. qq̅ → gγγ to the annihilation of a quark-antiquark pair qq̅ → gγ of prompt photon production in proton-proton collisions at NICA energies √s = 10 GeV was performed. The differential cross-sections and double spin asymmetries A_LL of the radiative corrections were investigated analytically using the FeynCalc and modulated in PYTHIA 8.316. Radiative corrections are significant at low collision energies of protons √s and small transverse momentum of photons p_T. It was shown that radiative corrections to the annihilation of a quark-antiquark pair process satisfy the following relations: 2. σ_√s(qq̅ → ggγ) > 1. σ_√s(qq̅ → qq̅γ) > 3. σ_√s(qq̅ → gγγ) 1. (dσ(qq̅ → qq̅γ))/dp_T^2 > 3. (dσ(qq̅ → gγγ))/dp_T^2 > 2. (dσ(qq̅ → ggγ))/dp_T^2 The polarization of colliding protons has almost the same effect on processes 1. qq̅ → qq̅γ, 2. qq̅ → ggγ, and 3. qq̅ → gγγ and in this case above indicated relation is also satisfied. A direct comparison between strict leading order analytical calculations in FeynCalc and PYTHIA 8.316 modulations revealed excellent agreement in the central kinematic regions.
ER -