Diphoton Generalized Distribution Amplitudes

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We calculate the leading order diphoton generalized distribution amplitude by calculating the amplitude of the process gamma* gamma -> gamma gamma in the low energy and high photon virtuality region at the Born order and in the leading logarithmic approximation. As in the case of the anomalous photon structure functions, the gamma gamma generalized distribution amplitude exhibits a characteristic \ln Q^2 behaviour and obeys inhomogeneous evolution equations.
15 pages, 5 figures

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High Energy Physics - Phenomenology, Nuclear Theory

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http://salesiana.dossiersoluciones.com/handle/123456789/203904

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0806.1098
 http://arxiv.org/abs/0806.1098
 Phys.Rev.D78:034009,2008
 doi:10.1103/PhysRevD.78.034009

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arXiv