Izvorni znanstveni članak
Framework for finite alternative theories to a quantum field theory. II - Unitarity
Marijan Ribarič
; Jozef Stefan Institute, p.p. 3000, 1001 Ljubljana, Slovenia
Luka Šušteršič
; Jozef Stefan Institute, p.p. 3000, 1001 Ljubljana, Slovenia
Sažetak
We generalized the 't Hooft-Veltman method of unitary regulators to put forward a path-integral framework for finite, alternative theories to a given quantum field theory. We demonstrated that the proposed framework is feasible by providing a finite alternative to the quantum field theory of a single, self-interacting real scalar field. Here we give two properties of self-energy that make the corresponding scattering matrix unitary. We show that the perturbative self-energy has these two properties at least up to the second order in the coupling constant.
Ključne riječi
path-integral framework; finite alternative theories to quantum field theory; generalized the 't Hooft-Veltman method; self-interacting real scalar field; self-energy
Hrčak ID:
305230
URI
Datum izdavanja:
2.11.2003.
Posjeta: 106 *