s'authentifier
version française rss feed
HAL : in2p3-00747311, version 1

Fiche concise  Récupérer au format
Higgs couplings beyond the Standard Model
Cacciapaglia G., Deandrea A., Drieu La Rochelle G., Flament J.-B.
Journal of High Energy Physics 3 (2013) 029 - http://hal.in2p3.fr/in2p3-00747311
Physique/Physique des Hautes Energies - Phénoménologie
Higgs couplings beyond the Standard Model
G. Cacciapaglia1, A. Deandrea1, Guillaume Drieu La Rochelle1, J.-B. Flament1
1 :  IPNL - Institut de Physique Nucléaire de Lyon
http://www.ipnl.in2p3.fr/
CNRS : UMR5822 – IN2P3 – Université Claude Bernard - Lyon I (UCBL)
France
Theorie
We consider the Higgs boson decay processes and its production, and provide a parameterisation tailored for testing models of new physics beyond the Standard Model. We also compare our formalism to other existing parameterisations based on scaling factors in front of the couplings and to effective Lagrangian approaches. Different formalisms allow to best address different aspects of the Higgs boson physics. The choice of a particular parameterisation depends on a non-obvious balance of quantity and quality of the available experimental data, envisaged purpose for the parameterisation and degree of model independence, importance of the radiative corrections, scale at which new particles appear explicitly in the physical spectrum. At present only simple parameterisations with a limited number of fit parameters can be performed, but this situation will improve with the forthcoming experimental LHC data. Detailed fits can only be performed by the experimental collaborations at present, as the full information on the different decay modes is not completely available in the public domain. It is therefore important that different approaches are considered and that the most detailed information is made available to allow testing the different aspects of the Higgs boson physics and the possible hints beyond the Standard Model.

Articles dans des revues avec comité de lecture
2013
Journal of High Energy Physics
Publisher Institute of Physics (IOP)
ISSN 1126-6708 (eISSN : 1029-8479)
3
029

LYCEN 2012-11
16 pages, 3 figures, 4 tables
Lien vers le texte intégral : 
http://fr.arXiv.org/abs/1210.8120