Higher Moments of Heavy Quark Correlators in the Low Energy Limit at O(alpha_s^2)

Details Higher Moments of Heavy Quark Correlators in the Low Energy Limit at O(alpha_s^2) Higher Moments of Heavy Quark Correlators in the Low Energy Limit at O(alpha_s^2)

2007-11-16

arxiv.org/abs/0711.2636v1

Nucl.Phys.B797:218-242,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

32 pages, 7 figures

Scientific paper

10.1016/j.nuclphysb.2007.12.035

We present the first 30 moments of the low energy expansions of the vector,
axial-vector, scalar and pseudo-scalar heavy quark correlation functions at
three-loop order, including the singlet contribution which appears for the
first time at three loops. In addition we compare the behavior of the moments
for large n with the prediction from threshold calculations.

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