Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2005-12-21
Nucl.Phys.B741:353-367,2006
Physics
High Energy Physics
High Energy Physics - Theory
18 pages, 5 eps figures, LaTeX2e file
Scientific paper
10.1016/j.nuclphysb.2006.02.004
We reconsider the mass spectrum of double sine-Gordon theory where recent semiclassical results called into question the previously accepted picture. We use the Truncated Conformal Space Approach (TCSA) to investigate the claims. We demonstrate that the numerics supports the original results, and strongly disagrees with those obtained from semiclassical soliton form factor techniques. Besides the numerical analysis, we also discuss the underlying theoretical arguments.
Taka'cs Ga'bor
Wagner Friedrich
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