Two-Loop Planar Corrections to Heavy-Quark Pair Production in the Quark-Antiquark Channel

Bonciani R, Ferroglia A, Gehrmann T, Studerus C (2009)
JHEP 2009(08): 067.

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Zeitschriftenaufsatz | Veröffentlicht | Englisch
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Abstract / Bemerkung
We evaluate the planar two-loop QCD diagrams contributing to the heavy-quark pair production process in the quark-antiquark annihilation channel. The evaluation of these diagrams allows us to obtain an analytic expression for the leading color coefficient in the virtual corrections at order alpha_S^2. We obtain a result which is valid for any value of the Mandelstam invariants s and t, and of the heavy-quark mass m. Our findings agree with previous analytic results in the small-mass limit and numerical results for the exact amplitude.
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JHEP
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2009
Zeitschriftennummer
08
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067
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Bonciani R, Ferroglia A, Gehrmann T, Studerus C. Two-Loop Planar Corrections to Heavy-Quark Pair Production in the Quark-Antiquark Channel. JHEP. 2009;2009(08):067.
Bonciani, R., Ferroglia, A., Gehrmann, T., & Studerus, C. (2009). Two-Loop Planar Corrections to Heavy-Quark Pair Production in the Quark-Antiquark Channel. JHEP, 2009(08), 067. doi:10.1088/1126-6708/2009/08/067
Bonciani, R., Ferroglia, A., Gehrmann, T., and Studerus, C. (2009). Two-Loop Planar Corrections to Heavy-Quark Pair Production in the Quark-Antiquark Channel. JHEP 2009, 067.
Bonciani, R., et al., 2009. Two-Loop Planar Corrections to Heavy-Quark Pair Production in the Quark-Antiquark Channel. JHEP, 2009(08), p 067.
R. Bonciani, et al., “Two-Loop Planar Corrections to Heavy-Quark Pair Production in the Quark-Antiquark Channel”, JHEP, vol. 2009, 2009, pp. 067.
Bonciani, R., Ferroglia, A., Gehrmann, T., Studerus, C.: Two-Loop Planar Corrections to Heavy-Quark Pair Production in the Quark-Antiquark Channel. JHEP. 2009, 067 (2009).
Bonciani, R., Ferroglia, A., Gehrmann, T., and Studerus, Cedric. “Two-Loop Planar Corrections to Heavy-Quark Pair Production in the Quark-Antiquark Channel”. JHEP 2009.08 (2009): 067.

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