Revisiting the D-meson hadroproduction in general-mass variable flavour number scheme - INSPIRE

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Revisiting the D-meson hadroproduction in general-mass variable flavour number scheme

Ilkka Helenius
(
- Tubingen U.
)
,
Hannu Paukkunen
(
- Jyvaskyla U. and
- Helsinki U.
)

Apr 10, 2018

28 pages

Published in:

JHEP 05 (2018) 196

Published: May 30, 2018

e-Print:

1804.03557 [hep-ph]

DOI:

10.1007/JHEP05(2018)196

View in:

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Abstract: (Springer)

We introduce a novel realization of the open heavy-flavour hadroproduction in general-mass variable flavour number scheme at next-to-leading order in perturbative QCD. The principal novelty with respect to the earlier works is in the treatment of small-transverse-momentum limit, which has been a particularly challenging kinematic region in the past. We show that by a suitable choice of scheme, it is possible to obtain a well-behaved description of the open heavy-flavour hadroproduction cross sections from zero up to asymptotically high transverse momentum. We contrast our calculation with the available D

^{0}

-meson data as measured by the LHCb and ALICE collaborations at the LHC, finding a very good agreement within the theoretical and experimental uncertainties. We also compare our framework with other theoretical approaches.

Note:

The published version

Open heavy-flavour production
QCD
hadron colliders
parton distribution functions
QCD Phenomenology
heavy quark: hadroproduction
meson: hadroproduction
transverse momentum: high
quantum chromodynamics: perturbation theory
higher-order: 1

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