Higher Moments of Heavy Quark Correlators in the Low Energy Limit at O(alpha**2(s)) - INSPIRE

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Higher Moments of Heavy Quark Correlators in the Low Energy Limit at O(alpha**2(s))

Nov, 2007

32 pages

Published in:

Nucl.Phys.B 797 (2008) 218-242

e-Print:

0711.2636 [hep-ph]

DOI:

10.1016/j.nuclphysb.2007.12.035

Report number:

TTP07-32,
SFB-CPP-07-76

View in:

ADS Abstract Service

reference search81 citations

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Abstract: (arXiv)

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.

14.65.Dw
12.38.Bx
14.65.Fy
Heavy quarks
heavy quark
current: correlation function
moment
perturbation theory: higher-order
asymptotic behavior
threshold

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