Eur. Phys. J. C (2017) 77: 2
https://doi.org/10.1140/epjc/s10052-016-4562-2

Regular Article - Theoretical Physics

Testing the parton evolution with the use of two-body final states

¹ P.N. Lebedev Physics Institute, Moscow, 119991, Russia
² Deutsches Elektronen-Synchrotron, Notkestrasse 85, Hamburg, Germany
³ Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow, 119991, Russia
⁴ Joint Institute for Nuclear Research, Dubna, 141980, Moscow Region, Russia

^* e-mail: lipatov@theory.sinp.msu.ru

Received: 20 September 2016
Accepted: 7 December 2016
Published online: 27 December 2016

Abstract

We consider the production of quarks and Drell–Yan lepton pairs under LHC conditions focusing attention on the total transverse momentum of the produced pair and on the azimuthal angle between the momenta of the outgoing particles. Plotting the corresponding distributions in bins of the final-state invariant mass, one can reconstruct the full map of the transverse momentum dependent parton densities in a proton. We give examples of how these distributions can look like at the LHC energies.