Two-loop electroweak next-to-leading logarithms for processes involving heavy quarks - INSPIRE

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Two-loop electroweak next-to-leading logarithms for processes involving heavy quarks

Ansgar Denner
(
- PSI, Villigen
)
,
Bernd Jantzen
(
- PSI, Villigen
)
,
Stefano Pozzorini
(
- Munich, Max Planck Inst.
)

Sep, 2008

55 pages

Published in:

JHEP 11 (2008) 062

e-Print:

0809.0800 [hep-ph]

DOI:

10.1088/1126-6708/2008/11/062

Report number:

PSI-PR-08-11,
MPP-2008-89

View in:

ADS Abstract Service

reference search26 citations

Citations per year

Abstract: (arXiv)

We derive logarithmically enhanced two-loop virtual electroweak corrections for arbitrary fermion-scattering processes at the TeV scale. This extends results previously obtained for massless-fermion scattering to processes that involve also bottom and top quarks. The contributions resulting from soft, collinear, and ultraviolet singularities in the complete electroweak Standard Model are explicitly extracted from two-loop diagrams to next-to-leading-logarithmic accuracy including all effects associated with symmetry breaking and Yukawa interactions.

electroweak interaction: correction
heavy quark
interaction: Yukawa
fermion: scattering amplitude
singularity: ultraviolet
symmetry breaking
Feynman graph: higher-order
renormalization
high energy behavior

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