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

Amine Ahriche (Department of Physics, University of Jijel, Jijel, Algeria; The Abdus Salam International Centre for Theoretical Physics, Trieste, Italy; Fakultät für Physik, Universität Bielefeld, Bielefeld, Germany) ; Abdesslam Arhrib (Université AbdelMalek Essaadi, Faculté des Sciences et Techniques, Tangier, Morocco) ; Salah Nasri (Physics Department, UAE University, Al Ain, United Arab Emirates)

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.

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      "surname": "Nasri", 
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      "value": "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 <math><msup><mrow><mi>e</mi></mrow><mrow><mo>+</mo></mrow></msup><msup><mrow><mi>e</mi></mrow><mrow><mo>\u2212</mo></mrow></msup></math> 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."
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Published on:
26 February 2015
Publisher:
Elsevier
Published in:
Physics Letters B , Volume 743 C (2015)

Pages 279-283
DOI:
https://doi.org/10.1016/j.physletb.2015.02.062
Copyrights:
The Authors
Licence:
CC-BY-3.0

Fulltext files: