THE SCATTERING PHASE-SHIFTS IN THE SINE-GORDON AND SINH-GORDON FIELD-THEORIES

Authors
LU WF XU BW ZHANG YM
Citation
Wf. Lu et al., THE SCATTERING PHASE-SHIFTS IN THE SINE-GORDON AND SINH-GORDON FIELD-THEORIES, Physics letters. Section B, 309(1-2), 1993, pp. 109-113
Citations number
11
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
309
Issue
1-2
Year of publication
1993
Pages
109 - 113
Database
ISI
SICI code
0370-2693(1993)309:1-2<109:TSPITS>2.0.ZU;2-6
Abstract
Scattering two-particle states of the sine-Gordon and sine-Gordon mode ls in D + 1 dimensions are investigated for all values of the coupling constant with the Gaussian wave-functional approach. In 1 + 1 and 2 1 dimensions, the phase shifts of the scattering states are obtained. We find that the phase shifts are positive for the sine-Gordon field theory and negative for the sinh-Gordon field theory. In the higher di mensions, the phase shifts vanish, which is coincident with the trivia lity of the two field theories.