Электронный каталог

Статья

Lipatov, A.V.
Refined TMD Gluon Density in a Proton from the HERA and LHC Data / A.V.Lipatov, G.I.Lykasov, M.A.Malyshev // Журнал экспериментальной и теоретической физики. Письма. – 2024. – Т. 119, № 11/12. – P. 798-799. – URL: http://jetpletters.ru/ps/2465/article_36206.pdf. – Bibliogr.: 26.

We update the phenomenological parameters of the Transverse Momentum Dependent (TMD, or unintegrated) gluon density in a proton proposed in our previous studies. This analysis is based on the analytical expression for starting gluon distribution which provides a self-consistent simultaneous description of HERA data on proton structure function F&sub(2)(x, Q*2), reduced cross section for the electron-proton deep inelastic scattering at low Q*2 and soft hadron production in pp collisions at the LHC conditions. We extend it to the whole kinematical region using the Catani-Ciafaloni-Fiorani-Marchesini (CCFM) evolution equation. Exploiting our previous results on a number of semihard QCD processes, we performed a combined fit to an extended set of LHC and HERA data, comprising a total of 509 points from 16 data sets. We illustrate our fit by applying the derived TMD gluon density in a proton to inclusive prompt photon photoproduction at HERA.



Спец.(статьи,препринты) = С 324.1д - Квантовая хромодинамика$
ОИЯИ = ОИЯИ (JINR)2024