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Implementation of NLO high energy factorization in single inclusive forward hadron production

B. Ducloué
(
- Helsinki Inst. of Phys. and
- Jyvaskyla U.
)
,
T. Lappi
(
- Helsinki Inst. of Phys. and
- Jyvaskyla U.
)
,
Y. Zhu
(
- Helsinki Inst. of Phys. and
- Jyvaskyla U.
)

Mar 15, 2017

11 pages

Published in:

Phys.Rev.D 95 (2017) 11, 114007

Published: Jun 12, 2017

e-Print:

1703.04962 [hep-ph]

DOI:

10.1103/PhysRevD.95.114007

View in:

ADS Abstract Service

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Abstract: (APS)

Single inclusive particle production cross sections in high energy hadron collisions at forward rapidity are an important benchmark process for the Color Glass Condensate picture of small x QCD. Recent calculations of this process have not led to a stable perturbative expansion for this quantity at high transverse momenta. We consider the quark channel production cross section using the new rapidity factorization procedure proposed by Iancu et al. We show that for fixed coupling one does indeed obtain a physically meaningful cross section which is positive and reduces in a controlled way to previous leading order calculations. We also consider a running coupling that depends on the transverse momentum of the produced particle. This gives a stable result which, however, is not fully consistent with previous leading order calculations that use a coordinate space running coupling.

Note:

REVTeX, 11 pages, 6 figures

energy: high
coupling constant: energy dependence
higher-order: 1
transverse momentum: high
hadron: production
quantum chromodynamics: small-x
factorization
color glass condensate

References(33)

Figures(11)

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(
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(
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