Implementation of NLO high energy factorization in single inclusive forward hadron production
Ducloue, B., Lappi, T., & Zhu, Y. (2017). Implementation of NLO high energy factorization in single inclusive forward hadron production. Physical Review D, 95(11), Article 114007. https://doi.org/10.1103/PhysRevD.95.114007
Published inPhysical Review D
© 2017 American Physical Society. Published in this repository with the kind permission of the publisher.
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.
PublisherAmerican Physical Society
ISSN Search the Publication Forum2470-0010
Publication in research information system
MetadataShow full item record
Related funder(s)Academy of Finland; European Commission
Funding program(s)Academy Research Fellow, AoF; Research costs of Academy Research Fellow, AoF
The content of the publication reflects only the author’s view. The funder is not responsible for any use that may be made of the information it contains.
Additional information about fundingWe thank E. Iancu and D. Zaslavsky for discussions and H. Mäntysaari for providing his BK solutions. This work has been supported by the Academy of Finland, Grants No. 267321, No. 273464 and No. 303756 and by the European Research Council, Grant No. ERC-2015-CoG681707.
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