Transverse momentum dependent parton densities in a proton from the generalized DAS approach
Seminars
Seminar “Hadron Physics”
Date and Time: Friday, 29 November 2019, at 11:00 AM
Venue: Blokhintsev Hall (4th floor), Bogoliubov Laboratory of Theoretical Physics
Seminar topic: “Transverse momentum dependent parton densities in a proton from the generalized DAS approach”
Speaker: A. V. Kotikov
Abstract:
We use the Bessel-inspired behaviour of parton densities at small Bjorken x values, obtained in the case of the flat initial conditions for the Dokshitzer-Gribov-Lipatov-Altarelli-Parisi (DGLAP) evolution equations in the double scaling QCD approximation (DAS), to evaluate the transverse momentum dependent (TMD, or unintegrated) quark and gluon distribution functions in a proton. The calculations are performed analytically using the Kimber-Martin-Ryskin (KMR) prescription with different implementation of kinematical constraint, reflecting the angular and strong ordering conditions. The relations between the differential and integral formulation of the KMR approach is discussed. Several phenomenological applications of the proposed TMD parton densities to the LHC processes are given.