Boundary bound states in affine Toda field theory

Fring, Andreas; Koberle, Roland

doi:10.1142/S0217751X95000346

Boundary bound states in affine Toda field theory

Andreas Fring
(
- Swansea U.
)
,
Roland Koberle
(
- Sao Paulo U., Sao Carlos
)

Apr, 1994

16 pages

Published in:

Int.J.Mod.Phys.A 10 (1995) 739-752

e-Print:

hep-th/9404188 [hep-th]

DOI:

10.1142/S0217751X95000346

Report number:

SWAT-93-94-28,
USP-IFQSC-TH-94-03

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Abstract:

We demonstrate that the generalization of the Coleman-Thun mechanism may be applied to the situation, when considering scattering processes in 1+1-dimensions in the presence of reflecting boundaries. For affine Toda field theories we find that the binding energies of the bound states are always half the sum over a set of masses having the same colour with respect to the bicolouration of the Dynkin diagram. For the case of

E_6

-affine Toda field theory we compute explicitly the spectrum of all higher boundary bound states. The complete set of states constitutes a closed bootstrap.

Note:

16 p., Latex

field theory: Toda
field theory: affine
dimension: 2
boundary condition
scattering amplitude
bound state
bootstrap
analytic properties

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