Two Photon Distribution Amplitudes

Details Two Photon Distribution Amplitudes Two Photon Distribution Amplitudes

2008-06-09

arxiv.org/abs/0806.1375v1

AIPConf.Proc.1038:305-310,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

to be published in the proceedings of the workshop HLPW08, Spa, March 6-8, 2008, AIP conference proceedings series

Scientific paper

10.1063/1.2987183

The factorization of the amplitude of the process gamma* gamma -> gamma gamma
in the low energy and high photon virtuality region is demonstrated at the Born
order and in the leading logarithmic approximation. The leading order two
photon (generalized) distribution amplitudes exhibit a characteristic ln Q2
behaviour and obey new inhomogeneous evolution equations.

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