Year: 2025
Type: article
Abstract: A bstract The effective cross section of double parton scattering in high-energy hadron collisions has been measured in proton-proton collisions, with significant variation among final-state observables, contrary to the idea of a universal value. Building upon our previous work, we incorporate the dependence on both the parton longitudinal momentum fraction x and the process energy hard scale μ into the transverse part of the double parton distributions, using a Gaussian profile. Employing the experimental data from the LHC and Tevatron experiments (covering different processes, kinematic configurations, and center-of-mass energies), we perform a global fit of the model, extracting the parameters that describe the proton structure. With this result, it becomes possible to calculate the effective cross section for other observables, and we provide predictions for future measurements at the LHC.
Source: Journal of High Energy Physics
Institution: Universidade Federal de Santa Catarina
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4415317301