Bounding the Higgs Width Using Effective Field Theory
High Energy Physics - Phenomenology
2014-05-09 v1
Abstract
An interesting question is how present and future experiments will be able to probe the couplings of the Higgs boson and its intrinsic width at a high level of precision. There is a wide variety of beyond the Standard Model (BSM) theories where the Higgs couplings differ from the Standard Model (SM) ones by less that 10%. We take the SM as the theory of "light" degrees of freedom, i.e. d=4 operators and simulate the unknown extension of the SM by the most general set of d=6 operators. In particular we provide an explicit example of momentum-dependent modification of Higgs couplings.
Cite
@article{arxiv.1405.1925,
title = {Bounding the Higgs Width Using Effective Field Theory},
author = {Margherita Ghezzi and Giampiero Passarino and Sandro Uccirati},
journal= {arXiv preprint arXiv:1405.1925},
year = {2014}
}
Comments
Talk given at Loops and Legs in Quantum Field Theory, 27 April 2014 - 02 May 2014, Weimar, Germany