Light-cone expansions,the parton model and virtual γγ scattering |
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Authors: | VL Chernyak VG Serbo |
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Institution: | USSR Academy of Sciences, Siberian Division, Institute for Mathematics USSR |
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Abstract: | It is shown that it is sufficient to use the light-cone algebra of currents and the algebra of bilocal operators to find the asymptotic behaviour of the γγ scattering amplitude when one (or two) of the photon masses q1,22 is large, and for an arbitrary value of the energy squared s = (q1+q2)2. A general form of this asymptotic behaviour is obtained. The box-diagram is dominant over the wide region in and so the asymptotic amplitude is known completely. It is shown that the parton model of the type of ref.8] gives the same predictions for the asymptotic behaviour of the γγ amplitude. |
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