Abstract
In a leading approximation, the distribution functions of the photon are investigated using Altarelli-Parisi type equations including point-like and hadron-like components. Using a new method to make a Mellin transformation, the full inhomogeneous equation is solved numerically. The point-like and hadron-like parts of photon distribution function are discussed separately. The point-like part has a form ƒ(x, t) In Q 2 , where t = In Q 2. Analytic expressions for the photon distribution functions near x = 1 and x = 0 are also given. These results are compared with others which have been given using other methods.
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