Master integrals for massless three-loop form-factors: One-loop and two-loop insertions - INSPIRE

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Master integrals for massless three-loop form-factors: One-loop and two-loop insertions

Jul, 2006

12 pages

Published in:

Phys.Lett.B 640 (2006) 252-259

e-Print:

hep-ph/0607185 [hep-ph]

DOI:

10.1016/j.physletb.2006.08.008

Report number:

ZU-TH-16-06

View in:

ADS Abstract Service

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Abstract:

The three-loop form factors in massless QCD can be expressed as a linear combination of master integrals. Besides a number of master integrals which factorise into products of one-loop and two-loop integrals, one finds 16 genuine three-loop integrals. Of these, six have the form of a bubble insertion inside a one-loop or two-loop vertex integral. We compute all master integrals with these insertion topologies.

quantum chromodynamics: massless
form factor
Feynman graph: higher-order
higher-order: 3

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