Prompt photon production in proton collisions as a probe of parton scattering in high energy limit

@article{GolecBiernat2020PromptPP,
  title={Prompt photon production in proton collisions as a probe of parton scattering in high energy limit},
  author={Krzysztof Golec-Biernat and Leszek Motyka and Tomasz Stebel},
  journal={Physical Review D},
  year={2020}
}
We study the prompt photon hadroproduction at the LHC with the ${k}_{T}$-factorization approach and the $q{g}^{*}\ensuremath{\rightarrow}q\ensuremath{\gamma}$ and ${g}^{*}{g}^{*}\ensuremath{\rightarrow}q\overline{q}\ensuremath{\gamma}$ partonic channels, using three unintegrated gluon distributions which depend on gluon transverse momentum. They represent three different theoretical schemes which are usually considered in the ${k}_{T}$-factorization approach, known under the acronyms: KMR, CCFM… 

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References

SHOWING 1-10 OF 78 REFERENCES

CMS Collaboration

Phys

  • Rev. D 82, 074024
  • 2010

Phys

  • Lett. B 429, 369
  • 1998

Nucl

  • Phys. B883, 1
  • 2014

Phys

  • Rev. D 95, 114025
  • 2017

Status of CCFM - unintegrated gluon densities

New fits of the unintegrated gluon density obtained from CCFM evolution to HERA $F_2(x,Q^2)$ data are presented. Also predictions of the unintegrated gluon density of the real photon are presented.

Soft Component of Hard Reactions and Nuclear Shadowing (DIS, Drell-Yan reaction, heavy quark production)

We consider deep-inelastic lepton scattering, Drell-Yan lepton pair and heavy quark production in the reference frame of the target. These reactions traditionally treated as hard have, however, a

ATLAS Collaboration

Phys

  • Rev. C 59, 1609
  • 1999

The color dipole picture for prompt photon production in pp and pPb collisions at the CERN-LHC

A study on the prompt photon production within the QCD color dipole picture with emphasis in pp and pA collisions at the LHC energy regimes is performed. We present predictions for the differential
...