Pantheon SEMPARIS Le serveur des séminaires parisiens Paris

Status Confirmed
Seminar Series IPHT-HEP
Subjects hep-ph
Date Tuesday 3 December 2019
Time 16:00
Institute IPHT
Seminar Room Salle Claude Itzykson, Bât. 774
Speaker's Last Name Admir Greljo
Speaker's First Name
Speaker's Email Address
Speaker's Institution CERN
Title The H-Parameter: An Oblique Higgs View
Abstract I will discuss some theoretical and phenomenological aspects of the off-shell Higgs physics based on 1903.07725. The question ``How does the Higgs boson propagate?'' is framed in the context of Universal effective field theories. The Higgs boson oblique parameter H is introduced; consistency conditions stemming from Kallen-Lehmann representation are derived; examples of UV completions are provided. Finally, the four-top production is advertised as an effective high-energy probe of off-shell Higgs behaviour.
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