Year: 1998
Type: article
Abstract: A heavy Higgs resonance in the minimal standard model is described in such a way that the whole energy range of $\stackrel{\ensuremath{\rightarrow}}{2}2$ scattering processes is covered, including the asymptotic behavior at low and high energies. The description does not rely on a particular representation (linear or nonlinear) chosen for the Higgs and Goldstone fields. The low-energy theorems which follow from the custodial ${\mathrm{SU}}_{2}$ symmetry of the Higgs sector restrict the possible parametrizations of the line shape that are consistent in perturbation theory. Matching conditions are specified which are necessary and sufficient to relate the parameters arising in different expansions. The construction is performed explicitly up to next-to-leading order.
Authors: Wolfgang Kilian, Kurt Riesselmann
Institutions: Heidelberg University, Deutsches Elektronen-Synchrotron DESY
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W1978715674