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Heavy flavor production in high-energy pp collisions : Color dipole description

Goncalves, Victor P. LU ; Kopeliovich, Boris; Nemchik, Jan; Pasechnik, Roman LU and Potashnikova, Irina (2017) In Physical Review D - Particles, Fields, Gravitation and Cosmology 96(1).
Abstract

We present a detailed study of open heavy flavor production in high-energy pp collisions at the LHC in the color dipole framework. The transverse momentum distributions of produced b-jets, accounting for the jet energy loss, as well as produced open charm D and bottom B mesons in distinct rapidity intervals relevant for LHC measurements are computed. The dipole model results for the differential b-jet production cross section are compared to the recent ATLAS and CMS data while the results for D and B mesons production cross sections - to the corresponding LHCb data. Several models for the phenomenological dipole cross section have been employed to estimate theoretical uncertainties of the dipole model predictions. We demonstrate that... (More)

We present a detailed study of open heavy flavor production in high-energy pp collisions at the LHC in the color dipole framework. The transverse momentum distributions of produced b-jets, accounting for the jet energy loss, as well as produced open charm D and bottom B mesons in distinct rapidity intervals relevant for LHC measurements are computed. The dipole model results for the differential b-jet production cross section are compared to the recent ATLAS and CMS data while the results for D and B mesons production cross sections - to the corresponding LHCb data. Several models for the phenomenological dipole cross section have been employed to estimate theoretical uncertainties of the dipole model predictions. We demonstrate that the primordial transverse momentum distribution of the projectile gluon significantly affects the meson spectra at low transverse momenta and contributes to the largest uncertainty of the dipole model predictions.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review D - Particles, Fields, Gravitation and Cosmology
volume
96
issue
1
publisher
American Physical Society
external identifiers
  • scopus:85027016995
  • wos:000405510900001
ISSN
2470-0010
DOI
10.1103/PhysRevD.96.014010
language
English
LU publication?
yes
id
04725435-c742-4fa1-a3e0-8f915a8f3105
date added to LUP
2017-08-31 15:34:04
date last changed
2017-09-18 11:43:50
@article{04725435-c742-4fa1-a3e0-8f915a8f3105,
  abstract     = {<p>We present a detailed study of open heavy flavor production in high-energy pp collisions at the LHC in the color dipole framework. The transverse momentum distributions of produced b-jets, accounting for the jet energy loss, as well as produced open charm D and bottom B mesons in distinct rapidity intervals relevant for LHC measurements are computed. The dipole model results for the differential b-jet production cross section are compared to the recent ATLAS and CMS data while the results for D and B mesons production cross sections - to the corresponding LHCb data. Several models for the phenomenological dipole cross section have been employed to estimate theoretical uncertainties of the dipole model predictions. We demonstrate that the primordial transverse momentum distribution of the projectile gluon significantly affects the meson spectra at low transverse momenta and contributes to the largest uncertainty of the dipole model predictions.</p>},
  articleno    = {014010},
  author       = {Goncalves, Victor P. and Kopeliovich, Boris and Nemchik, Jan and Pasechnik, Roman and Potashnikova, Irina},
  issn         = {2470-0010},
  language     = {eng},
  month        = {07},
  number       = {1},
  publisher    = {American Physical Society},
  series       = {Physical Review D - Particles, Fields, Gravitation and Cosmology},
  title        = {Heavy flavor production in high-energy pp collisions : Color dipole description},
  url          = {http://dx.doi.org/10.1103/PhysRevD.96.014010},
  volume       = {96},
  year         = {2017},
}