Open charm production at the LHC - $k_{t}$-factorization approach - INSPIRE

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Open charm production at the LHC - $k_{t}$ -factorization approach

Rafal Maciula
(
- Cracow, INP
)
,
Antoni Szczurek
(
- Rzeszow U. and
- Cracow, INP
)

Jan, 2013

23 pages

Published in:

Phys.Rev.D 87 (2013) 9, 094022

Published: May 21, 2013

e-Print:

1301.3033 [hep-ph]

DOI:

10.1103/PhysRevD.87.094022

View in:

ADS Abstract Service

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Abstract: (APS)

We discuss inclusive production of open charm in proton-proton scattering at LHC. The calculation is performed within the kt-factorization approach. Different models of unintegrated gluon distributions (UGDFs) from the literature are used. The theoretical transverse momentum as well as (pseudo)rapidity distributions of charmed mesons are compared with recent experimental data of the ATLAS, ALICE, and LHCb Collaborations. Only the calculation with Kimber-Martin-Ryskin UGDF gives results comparable to experimental ones. All other popular models of UGDF significantly underpredict experimental data. Several sources of uncertainties of the theoretical predictions are also studied in detail. In addition, we discuss correlations between D and D¯ mesons. Good description of experimental distribution in invariant mass and in relative azimuthal angle between D and D¯ mesons is achieved for the Kimber-Martin-Ryskin UGDF. The considered correlation observables measured by the LHCb experiment were not discussed in other approaches in the literature

Note:

27 pages, 33 figures

14.65.Dw
13.87.Ce
charm: hadroproduction
transverse momentum: factorization
CERN LHC Coll
LHC-B
inclusive production
charmed meson: transverse momentum
ALICE
ATLAS

References(73)

Figures(79)

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