Nullification in scalar theories with derivative couplings

Details Nullification in scalar theories with derivative couplings Nullification in scalar theories with derivative couplings

1996-09-18

arxiv.org/abs/hep-ph/9609396v2

Phys.Lett. B392 (1997) 343-349

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, latex, added discussion on non-trivial classical solutions

Scientific paper

10.1016/S0370-2693(96)01560-2

We discuss the structure of scalar field theories having the property that all on-shell S-matrix elements vanish in tree approximation. It is shown that there exists a large class of such theories, with derivative couplings, which are all locally related to a free theory by a nonlinear transformation. It is also shown that a field-dependent wave-function renormalization provides all necessary counterterms so that all on-shell S-matrix elements vanish also at the one-loop level.

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