Moments of heavy-light current correlators up to three loops

Details Moments of heavy-light current correlators up to three loops Moments of heavy-light current correlators up to three loops

2011-03-08

arxiv.org/abs/1103.1481v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

21 pages

Scientific paper

We consider moments of the non-diagonal vector, axial-vector, scalar and
pseudo-scalar current correlators involving two different massive quark
flavours up to three-loop accuracy. Expansions around the limits where one mass
is zero and the equal-mass case are computed. These results are used to
construct approximations valid for arbitrary mass values.

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