Two-Loop Fermionic Corrections to Heavy-Quark Pair Production: The Quark-Antiquark Channel

Bonciani R, Ferroglia A, Gehrmann T, Maitre D, Studerus C (2008)
JHEP 2008(07).

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We evaluate the fermionic two-loop QCD corrections to the heavy-quark pair production process in the quark-antiquark channel. We obtain analytic results which are valid for any value of the Mandelstam invariants s and t, and of the heavy quark mass m. Our findings confirm previous results for the analytic evaluation in the small-mass limit and numerical results for the exact amplitude. We furthermore provide the expansion of the two-loop amplitude at the production threshold s ~ 4m^2.
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Bonciani R, Ferroglia A, Gehrmann T, Maitre D, Studerus C. Two-Loop Fermionic Corrections to Heavy-Quark Pair Production: The Quark-Antiquark Channel. JHEP. 2008;2008(07).
Bonciani, R., Ferroglia, A., Gehrmann, T., Maitre, D., & Studerus, C. (2008). Two-Loop Fermionic Corrections to Heavy-Quark Pair Production: The Quark-Antiquark Channel. JHEP, 2008(07).
Bonciani, R., Ferroglia, A., Gehrmann, T., Maitre, D., and Studerus, C. (2008). Two-Loop Fermionic Corrections to Heavy-Quark Pair Production: The Quark-Antiquark Channel. JHEP 2008.
Bonciani, R., et al., 2008. Two-Loop Fermionic Corrections to Heavy-Quark Pair Production: The Quark-Antiquark Channel. JHEP, 2008(07).
R. Bonciani, et al., “Two-Loop Fermionic Corrections to Heavy-Quark Pair Production: The Quark-Antiquark Channel”, JHEP, vol. 2008, 2008.
Bonciani, R., Ferroglia, A., Gehrmann, T., Maitre, D., Studerus, C.: Two-Loop Fermionic Corrections to Heavy-Quark Pair Production: The Quark-Antiquark Channel. JHEP. 2008, (2008).
Bonciani, R., Ferroglia, A., Gehrmann, T., Maitre, D., and Studerus, Cedric. “Two-Loop Fermionic Corrections to Heavy-Quark Pair Production: The Quark-Antiquark Channel”. JHEP 2008.07 (2008).
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