Revisiting the D-meson hadroproduction in general-mass variable flavour number scheme
Helenius, I., & Paukkunen, H. (2018). Revisiting the D-meson hadroproduction in general-mass variable flavour number scheme. Journal of High Energy Physics, 2018(5), Article 196. https://doi.org/10.1007/jhep05(2018)196
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Journal of High Energy PhysicsDate
2018Copyright
© The Authors 2018
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 D0-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.
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https://converis.jyu.fi/converis/portal/detail/Publication/28077910
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Academy of FinlandFunding program(s)
Academy Project, AoF; Academy Research Fellow, AoFAdditional information about funding
This research was supported by the Academy of Finland, Projects 297058 and 308301, as well as by the Carl Zeiss Foundation. The Finnish IT Center for Science (CSC) is acknowledged for super-computing time under the Project jyy2580. In addition, the authors acknowledge support by the state of Baden-W¨urttemberg through bwHPC, and thank Kari J. Eskola for discussions in the early stages of this work. The authors also wish to thank the JHEP Referee for comments and suggestions which have helped us to improve the paper. ...License
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