First O(alpha(s)**3) heavy flavor contributions to deeply inelastic scattering - INSPIRE

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First O(alpha(s)**3) heavy flavor contributions to deeply inelastic scattering

Jun, 2008

6 pages

Part of Proceedings, 9th DESY Workshop on Elementary Particle Theory: Loops and Legs in Quantum Field Theory : Sondershausen, Germany, 20-25 April 2008, 193, Proceedings, 16th International Workshop on Deep Inelastic Scattering and Related Subjects (DIS 2008) : London, UK, April 7-11, 2008, 193

Published in:

Nucl.Phys.B Proc.Suppl. 183 (2008) 162-167

Contribution to:

e-Print:

0806.4613 [hep-ph]

DOI:

10.1016/j.nuclphysbps.2008.09.098

Report number:

DESY-08-082,
SFB-CPP-08-38

View in:

ADS Abstract Service

reference search13 citations

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Abstract: (arXiv)

In the asymptotic limit

Q^2 \gg m^2

, the heavy flavor Wilson coefficients for deep--inelastic scattering factorize into the massless Wilson coefficients and the universal heavy flavor operator matrix elements resulting from light--cone expansion. In this way, one can calculate all but the power corrections in

(m^2/Q^2)^k, k > 0

. The heavy flavor operator matrix elements are known to

{\sf NLO}

. We present the last 2--loop result missing in the unpolarized case for the renormalization at 3--loops and first 3--loop results for terms proportional to the color factor

T_F^2

in Mellin--space. In this calculation, the corresponding parts of the

{\sf NNLO}

anomalous dimensions \cite{LARIN,MVVandim} are obtained as well.

heavy quark
deep inelastic scattering
anomalous dimension
renormalization

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