One loop scalar functions in the heavy quark effective theory

Details One loop scalar functions in the heavy quark effective theory One loop scalar functions in the heavy quark effective theory

2002-02-14

arxiv.org/abs/hep-ph/0202135v2

Eur.Phys.J.C25:233-244,2002

Physics

High Energy Physics

High Energy Physics - Phenomenology

18 pages, typos corrected, final results written out in more explicit form, further checks of results added

Scientific paper

10.1007/s10052-002-0985-z

We find general solutions for the dimensionally regularised scalar one loop
three-point and four-point functions with one heavy quark propagator. The
scalar one-point function vanishes, while the expression for the two-point
function has been found before. For the latter we give a detailed derivation.
We also discuss some special cases and compile useful formulae.

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