Abstract: A descriptive model of high energy diffractive reactions among hadrons is presented, with particular attention to diffraction dissociation into definite channels (exclusive reactions). The motivation is based upon the ideas of Good and Walker, and others, but hadrons are now assumed to be composed of elementary point like constituents, called partons. The physical eigenstate of a hadron is assumed to be a noneigenstate of parton number, so the latter is a fluctuating quantity in a given reaction. The basic interaction in a high energy collision of two hadrons is assumed to be between partons. However, detailed parton-parton dynamics is avoided by invoking the optical theorem for forward angles. For diffraction dissociation, the basic problem is the construction of a 'compound' physical state in terms of supposedly known 'simple' physical states. A prescription is given, using the argument of random phases, and the amplitude for diffraction dissociation is found as an overlap, simultaneously, of momentum space wave functions and parton number distribution functions. Simple examples are given for Gaussian and Poisson functions. The model can account for several features of exclusive diffraction dissociation reactions but spin is neglected at this stage.
Publication Year: 1974
Publication Date: 1974-12-15
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 1
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