Instanton - like transitions at high-energies in (1+1)-dimensional scalar models

Instanton-like transitions (``shadow processes'') are considered in (1+1) dimensional models with one scalar field whose potential is a quadratic well with a cliff. The corresponding classical boundary value problem is solved, and the semiclassical transition probabilities are found in a rather wide range of energies and the numbers of initial particles.

Note:

LaTeX, 42pp. including 6 LaTeX figures, 3 figures available in PostScript Journal-ref: Nucl.Phys. B422 (1994) 195-226 DOI: 10.1016/0550-3213(94)90490-1

field theory: scalar
dimension: 2
field equations: instanton
boundary condition
quantization
approximation: semiclassical
scattering amplitude
analytic properties

References(26)

Figures(0)

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