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Reconstruction of non-forward evolution kernels

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arxiv hep-ph/9904477 v2 pith:TDBVPGNJ submitted 1999-04-28 hep-ph

classification hep-ph
keywords conformalevolutionkernelsnon-forwardorderreconstructionamplitudesanomaly
verification ladder T0 review T1 audit T2 compute T3 formal
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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.

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Forward citations

Cited by 3 Pith papers

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    The rare decay W to Bc plus photon gets NNLO QCD corrections that reduce the width by 31 percent, giving a branching fraction of 1.522 times 10 to the minus 10 after NLL resummation.

  3. Generalized parton distributions of the kaon and pion within the nonlocal chiral quark model

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