 Home |
| For authors |
| Submission status |
| Archive
|
| Archive
(English)
|
| Current
|
| Volumes 93-112 |
 Volumes 113-120 |
| Volume 120 |
| Volume 119 |
| Volume 118 |
| Volume 117 |
| Volume 116 |
| Volume 115 |
| Volume 114 |
| Volume 113 |
| Search |
| VOLUME 119 (2024) | ISSUE 11 | PAGE 798 |
|---|
|
Refined TMD gluon density in a proton from the HERA and LHC data
A. V. Lipatov+*, G. I. Lykasov*, M. A. Malyshev+×
+Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119991 Moscow, Russia *Joint Institute for Nuclear Research, 141980 Dubna, Russia ×Moscow Aviation Institute, 125993 Moscow, Russia
Abstract
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 F2(x,Q2), reduced cross section for the electron-proton deep inelastic scattering at low Q2 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. |