Title of article :
Reconstruction of non-forward evolution kernels
Author/Authors :
A.V. Belitsky، نويسنده , , D. Müller، نويسنده , , A. Freund، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 1999
Pages :
10
From page :
270
To page :
279
Abstract :
We develop a framework for the reconstruction of the non-forward kernels which govern the evolution of twist-two distribution amplitudes and off-forward parton distributions beyond leading order. It is based on the knowledge of the special conformal symmetry breaking part induced by the one-loop anomaly and conformal terms generated by forward next-to-leading order splitting functions, and thus avoids an explicit two-loop calculation. We demonstrate the formalism by applying it to the chiral odd and flavour singlet parity odd sectors.
Keywords :
Two-loop exclusive kernels , Conformal constraints , Evolution equation
Journal title :
PHYSICS LETTERS B
Serial Year :
1999
Journal title :
PHYSICS LETTERS B
Record number :
911798
Link To Document :
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