Triple Higgs coupling as a probe of the twin-peak scenario

Ahriche, Amine  (Department of Physics, University of Jijel, PB 98 Ouled Aissa, Jijel, DZ-18000, Algeria) (The Abdus Salam International Centre for Theoretical Physics, Strada Costiera 11, Trieste, I-34014, Italy) (Fakultät für Physik, Universität Bielefeld, Bielefeld, 33501, Germany) ; Arhrib, Abdesslam (Université AbdelMalek Essaadi, Faculté des Sciences et Techniques, B.P 416, Tangier, Morocco) ; Nasri, Salah (Physics Department, UAE University, POB 17551, Al Ain, United Arab Emirates)

26 February 2015

Abstract: In this letter, we investigate the case of a twin peak around the observed 125 GeV scalar resonance, using di-Higgs production processes at both LHC and e+e− Linear Colliders. We have shown that both at LHC and Linear Collider the triple Higgs couplings play an important role to identify this scenario; and also that this scenario can be distinguishable from any Standard Model extension by extra massive particles which might modify the triple Higgs coupling. We also introduce a criterion that can be used to rule out the twin peak scenario.

Published in: Physics letters B (2015)
Published by: Elsevier
DOI: 10.1016/j.physletb.2015.02.062
License: CC-BY-3.0

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