Abstract
We critically discuss recent works in which the premature unitarization mechanism is studied with the inclusion of non-nearest-neighbor interactions or beyond leading order in the energy. We also point out that the nonperturbative valley method gives inconsistent results when applied to fermion-number- violating amplitudes, and we argue that, independently of the mechanism of premature unitarization, the nonperturbative amplitudes which violate the fermion number are always exponentially suppressed.
Original language | English (US) |
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Pages (from-to) | 3610-3618 |
Number of pages | 9 |
Journal | Physical Review D |
Volume | 47 |
Issue number | 8 |
DOIs | |
State | Published - 1993 |
Bibliographical note
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