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Article Dans Une Revue Physical Review D Année : 2014

Charming the Higgs

T. Golling
  • Fonction : Auteur
G. Perez
  • Fonction : Auteur
Y. Soreq
  • Fonction : Auteur

Résumé

We show that current Higgs data permit a significantly enhanced Higgs coupling to charm pairs, comparable to the Higgs to bottom pairs coupling in the Standard Model, without resorting to additional new physics sources in Higgs production. With a mild level of the latter current data even allow for the Higgs to charm pairs to be the dominant decay channel. An immediate consequence of such a large charm coupling is a significant reduction of the Higgs signal strengths into the known final states as in particular into bottom pairs. This might reduce the visible vector-boson associated Higgs production rate to a level that could compromise the prospects of ever observing it. We however demonstrate that a significant fraction of this reduced signal can be recovered by jet-flavor-tagging targeted towards charm-flavored jets. Finally we argue that an enhanced Higgs to charm pairs coupling can be obtained in various new physics scenarios in the presence of only a mild accidental cancellation between various contributions.

Dates et versions

hal-00994109 , version 1 (21-05-2014)

Identifiants

Citer

C. Delaunay, T. Golling, G. Perez, Y. Soreq. Charming the Higgs. Physical Review D, 2014, 89, pp.033014. ⟨hal-00994109⟩
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