The Pomeranchuk Singularity in Nonabelian Gauge Theories

Kuraev, E.A.; Lipatov, L.N.; Fadin, Victor S.

The Pomeranchuk Singularity in Nonabelian Gauge Theories

Feb, 1977

6 pages

Published in:

Sov.Phys.JETP 45 (1977) 199-204,
Zh.Eksp.Teor.Fiz. 72 (1977) 377-389

Published: Feb, 1977

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Abstract:

An integral equation is derived for the

t

-channel partial wave amplitudes in the investigation of the multi-Regge form of the

2\to 2+n

amplitude. For a

t

-channel state with isospin

T=1

the solution of this equation is a Regge pole. The analytic properties os 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

.

12.40.Mm
11.80.Et
GAUGE FIELD THEORY: NONABELIAN
POMERON: MULTI-REGGE
ANALYTIC PROPERTIES
PARTIAL WAVE: SCATTERING AMPLITUDE
SCATTERING AMPLITUDE: PARTIAL WAVE
ISOSPIN

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