What if the Higgs couplings to W and Z bosons are larger than in the Standard Model?

Adam Falkowski (1) , Slava Rychkov (2) , Alfredo Urbano

1 LPT - Laboratoire de Physique Théorique d'Orsay [Orsay]
2 LPTENS - Laboratoire de Physique Théorique de l'ENS [École Normale Supérieure]

We derive a general sum rule relating the Higgs coupling to W and Z bosons to the total cross section of longitudinal gauge boson scattering in I=0,1,2 isospin channels. The Higgs coupling larger than in the Standard Model implies enhancement of the I=2 cross section. Such an enhancement could arise if the Higgs sector is extended by an isospin-2 scalar multiplet including a doubly charged, singly charged, and another neutral Higgs.

Domaines: Physique des Hautes Energies - Phénoménologie [hep-ph]

Adam Falkowski, Slava Rychkov, Alfredo Urbano. What if the Higgs couplings to W and Z bosons are larger than in the Standard Model?. Journal of High Energy Physics, 2012, 1204, pp.073. ⟨10.1007/JHEP04(2012)073⟩. ⟨hal-00669184⟩