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arXiv · 0812.3614

Proposal to improve the behaviour of self-energy contributions to the S-matrix

Gabor Zsolt Toth
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Abstract

A simple modification of the definition of the S-matrix is proposed. It is expected that the divergences related to nonzero self-energies are considerably milder with the modified definition than with the usual one. This conjecture is verified in a few examples using perturbation theory. The proposed formula is written in terms of the total Hamiltonian operator and a free Hamiltonian operator and is therefore applicable in any case when these Hamiltonian operators are known.

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Gabor Zsolt Toth. 2008-12-18. Proposal to improve the behaviour of self-energy contributions to the S-matrix. https://doi.org/10.2478/s11534-009-0139-0

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