Impact parameter description of multiparticle and elastic scattering
Abstract
Impact parameter variables are defined for a multiparticle production process. The equation of unitarity for elastic scattering is written at high energy in terms of these variables. The overall impact parameter can be expressed in terms of the impact parameters of all the produced particles. The unitarity equation becomes an ``optical theorem'' at each impact parameter  diffractive scattering is given by beam depletion. These features allow this technique to give a much clearer interpretation of unitarity in any model than has therefore been possible. This technique can be used to study existing models, and to suggest new ones.
 Publication:

Physics Letters B
 Pub Date:
 August 1973
 DOI:
 10.1016/03702693(73)900567
 Bibcode:
 1973PhLB...45..363H