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Pomeranchuk singularity in nonabelian gauge theories

Journal Article · · Sov. Phys. - JETP (Engl. Transl.); (United States)
OSTI ID:5273201
An integral equation is derived for the t-channel partial wave amplitudes in the investigation of the multi-Regge form of the 2..-->..2+n amplitude. For a t-channel state with isospin T=1 the solution of this equation is a Regge pole. The analytic properties of the isospin T=0, 2 partial wave amplitudes are investigated near the threshold for the production of two or three particles. It is shown that in the j-plane there are moving poles and cuts. For the T=0 vacuum channel it was found that the partial wave amplitude has a fixed square-root type branch point to the right of j=1.
Research Organization:
Institute for Nuclear Physics, Siberian Division, USSR Academy of Sciences, Novosibirsk
OSTI ID:
5273201
Journal Information:
Sov. Phys. - JETP (Engl. Transl.); (United States), Journal Name: Sov. Phys. - JETP (Engl. Transl.); (United States) Vol. 45:2; ISSN SPHJA
Country of Publication:
United States
Language:
English