2019/11/30 by Gary Kapilevich
Mathematics · Physics and Astronomy · #Distribution (mathematics) #Gluon #Hadron #High-Energy Particle Collisions Research #Mathematical analysis #Mathematics #Momentum (technical analysis) #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #hep-ph #nucl-th
paper · pdf · doi:10.1103/physrevd.101.034035
published as Phys. Rev. D 101, 034035 (2020) · 15 pages. Resubmitted 2/20/20, in line with referee comments for upcoming publication to Physics Review D. A paragraph was added at the beginning of the introduction, so to begin the paper with a broader presentation of using biased ensembles to better understand various observables in particle collisions
openalex created_date 2019/11/22 · arxiv created 2020/02/20 · openalex publication_date 2020/02/28 · arxiv updated 2020/03/04 · openalex updated_date 2026/08/05
We consider double gg\ensuremath→g production in the presence of a bias on the unintegrated gluon distribution of the colliding hadrons or nuclei. Such bias could be due to the selection of configurations with a greater number of gluons or higher mean transverse momentum squared or, more generally, due to a modified spectral shape of the gluon distribution in the hadrons. Hence, we consider reweighted functional averages over the stochastic ensemble of small-x gluons. We evaluate explicitly the double inclusive gluon transverse momentum spectrum in high-energy collisions, and their azimuthal correlations, for a few simple examples of biases.