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One loop scalar functions in the heavy-quark effective theory

2002; Springer Science+Business Media; Volume: 25; Issue: 2 Linguagem: Inglês

10.1007/s10052-002-0985-z

1434-6052

Jure Zupan,

Black Holes and Theoretical Physics

We find general solutions for the dimensionally regularized 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.