Benchmarking di-Higgs production in various extended Higgs sector models

Journal of High Energy Physics

Regular Article - Theoretical Physics

Hamza Abouabid¹  Abdesslam Arhrib¹  Rui Santos²  Pedro M. Ferreira²  Margarete Mühlleitner³  Duarte Azevedo⁴  Jaouad El Falaki⁵ 

[1] Abdelmalek Essaadi University, Faculty of Sciences and Techniques, B.P. 416, Ancienne route de l’aéroport, Ziaten, Tangier, Morocco;ISEL — Instituto Superior de Engenharia de Lisboa, Instituto Politécnico de Lisboa, 1959-007, Lisboa, Portugal;Centro de Física Teórica e Computacional, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, Edifício C8, 1749-016, Lisboa, Portugal;Institute for Theoretical Physics, Karlsruhe Institute of Technology, Wolfgang-Gaede Str. 1, 76128, Karlsruhe, Germany;Institute for Theoretical Physics, Karlsruhe Institute of Technology, Wolfgang-Gaede Str. 1, 76128, Karlsruhe, Germany;Institute for Astroparticle Physics, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany;LPTHE, Physics Department, Faculty of Science, Ibn Zohr University, P.O.B. 8106, Agadir, Morocco;

关键词: Multi-Higgs Models;    Specific BSM Phenomenology;    Higgs Properties;   

DOI  :  10.1007/JHEP09(2022)011

 received in 2022-01-20, accepted in 2022-07-23,  发布年份 2022

来源: Springer

【 摘 要 】

We present a comprehensive study on Higgs pair production in various archetypical extended Higgs sectors such as the real and the complex 2-Higgs-Doublet Model, the 2-Higgs-Doublet Model augmented by a real singlet field and the Next-to-Minimal Supersymmetric extension of the Standard Model. We take into account all relevant theoretical and experimental constraints, in particular the experimental limits on non-resonant and resonant Higgs pair production. We present the allowed cross sections for Standard Model (SM)-like Higgs pair production and the ranges of the SM-like Yukawa and trilinear Higgs self-coupling that are still compatible with the applied constraints. Furthermore, we give results for the pair production of a SM-like with a non-SM-like Higgs boson and for the production of a pair of non-SM-like Higgs bosons. We find that di-Higgs production in the models under investigation can exceed the SM rate substantially, not only in the non-resonance region but also due to resonant enhancement. We give several benchmarks with interesting features such as large cross sections, the possibility to test CP violation, Higgs-to-Higgs cascade decays or di-Higgs production beating single Higgs production. In all of our benchmark points, the next-to-leading order QCD corrections are included in the large top-mass limit. For these points, we found that, depending on the model and the Higgs pair final state, the corrections increase the leading order cross section by a factor of 1.79 to 2.24. We also discuss the relation between the description of Higgs pair production in an effective field theory approach and in the specific models investigated here.

【 授权许可】

Unknown   
© The Author(s) 2022

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