One-loop gluon amplitude for heavy-quark production at next-to-next-to-leading order

Journal Article · Mon Dec 01 00:00:00 EST 2008 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.78.114006· OSTI ID:21250994

Anastasiou, Charalampos; Aybat, S Mert ^[1]

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1. Institute for Theoretical Physics, ETH, 8093 Zurich (Switzerland)

We compute the one-loop QCD amplitude for the process gg{yields}QQ in dimensional regularization through order {epsilon}{sup 2} in the dimensional regulator and for arbitrary quark mass values. This result is an ingredient of the next-to-next-to-leading order cross section for heavy-quark production at hadron colliders. The calculation is performed in conventional dimensional regularization using well-known reduction techniques as well as a method based on recent ideas for the functional form of one-loop integrands in four dimensions.

• OSTI ID: 21250994
• Journal Information: Physical Review. D, Particles Fields, Vol. 78, Issue 11; Other Information: DOI: 10.1103/PhysRevD.78.114006; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
AMPLITUDES
B QUARKS
C QUARKS
COMPUTERIZED SIMULATION
CROSS SECTIONS
FOUR-DIMENSIONAL CALCULATIONS
GLUONS
HADRONS
MASS
PARTICLE PRODUCTION
QUANTUM CHROMODYNAMICS
T QUARKS