Momentum fraction and hard scale dependence of double parton scattering

Abstract

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 $\mu$ 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 others observables, and we provide predictions for future measurements at the LHC.

11 pages, 4 figures

References in corpus (10)

• The four jet production at LHC and Tevatron in QCD
• Transverse nucleon structure and diagnostics of hard parton-parton processes at LHC
• Double Parton Correlations in the Bag Model
• A Double Parton Scattering Background to Associate $WH$ and $ZH$ Production at the LHC
• Phenomenological analysis of associated production of $Z^0+b$ in the $b\to J/\psi X$ decay channel at the LHC
• Possible indication to the QCD evolution of double parton distributions?
• Valence and sea parton correlations in double parton scattering from data
• DPS mechanism for associated $c\bar{c}{l}^{+}{l}^{-}$ production in $AA$ UPCs as a probe for photon density inside the nucleus
• Double parton interaction: the values of ${\sigma }_{\mathrm{eff}}$
• Hot Spot model of Nucleon and Double Parton Scattering

Cited by in corpus (1)

• Dissociative associated $J/\psi$ and dimuon production in Ap ultraperipheral collisions via double parton scattering