Light-quark two-loop corrections to heavy-quark pair production in the gluon fusion channel

Bonciani R, Ferroglia A, Gehrmann T, von Manteuffel A, Studerus C (2013)
Journal of High Energy Physics 2013(12): 38.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Autor*in
Bonciani, R.; Ferroglia, A.; Gehrmann, T.; von Manteuffel, Andreas; Studerus, CedricUniBi
Abstract / Bemerkung
We calculate the two-loop corrections to heavy-quark pair production in the gluon fusion channel which arise from diagrams involving a closed light-quark loop. The calculation is carried out by keeping the exact dependence on the heavy-quark mass. The analytic results are written in terms of logarithms, classical polylogarithms Li_n (n=2,3,4), and genuine multiple polylogarithms Li_{2,2}. The functional arguments are rational expressions of two independent external invariants and they are chosen in such a way that the functions are real in all the physical phase-space points. Through systematic changes in the functional basis, we obtain expansions of the results in both the production threshold and small mass limits.
Erscheinungsjahr
2013
Zeitschriftentitel
Journal of High Energy Physics
Band
2013
Ausgabe
12
Art.-Nr.
38
ISSN
1029-8479
eISSN
1029-8479
Page URI
https://pub.uni-bielefeld.de/record/2642677

Zitieren

Bonciani R, Ferroglia A, Gehrmann T, von Manteuffel A, Studerus C. Light-quark two-loop corrections to heavy-quark pair production in the gluon fusion channel. Journal of High Energy Physics. 2013;2013(12): 38.
Bonciani, R., Ferroglia, A., Gehrmann, T., von Manteuffel, A., & Studerus, C. (2013). Light-quark two-loop corrections to heavy-quark pair production in the gluon fusion channel. Journal of High Energy Physics, 2013(12), 38. https://doi.org/10.1007/JHEP12(2013)038
Bonciani, R., Ferroglia, A., Gehrmann, T., von Manteuffel, A., and Studerus, C. (2013). Light-quark two-loop corrections to heavy-quark pair production in the gluon fusion channel. Journal of High Energy Physics 2013:38.
Bonciani, R., et al., 2013. Light-quark two-loop corrections to heavy-quark pair production in the gluon fusion channel. Journal of High Energy Physics, 2013(12): 38.
R. Bonciani, et al., “Light-quark two-loop corrections to heavy-quark pair production in the gluon fusion channel”, Journal of High Energy Physics, vol. 2013, 2013, : 38.
Bonciani, R., Ferroglia, A., Gehrmann, T., von Manteuffel, A., Studerus, C.: Light-quark two-loop corrections to heavy-quark pair production in the gluon fusion channel. Journal of High Energy Physics. 2013, : 38 (2013).
Bonciani, R., Ferroglia, A., Gehrmann, T., von Manteuffel, Andreas, and Studerus, Cedric. “Light-quark two-loop corrections to heavy-quark pair production in the gluon fusion channel”. Journal of High Energy Physics 2013.12 (2013): 38.

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arXiv: 1309.4450

Inspire: 1254576

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