Heavy to light Higgs boson decays at NLO in the Singlet Extension of the Standard Model
| Autor: | Tania Robens, F. Bojarski, Guillaume Chalons, David Lopez-Val |
|---|---|
| Přispěvatelé: | Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Centre National de la Recherche Scientifique (CNRS), UCL - SST/IRMP - Institut de recherche en mathématique et physique |
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Physics
Particle physics Nuclear and High Energy Physics Scale (ratio) 010308 nuclear & particles physics High Energy Physics::Lattice Electroweak interaction High Energy Physics::Phenomenology FOS: Physical sciences 01 natural sciences Higgs sector Standard Model Renormalization High Energy Physics - Phenomenology High Energy Physics - Phenomenology (hep-ph) [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph] 0103 physical sciences Higgs boson High Energy Physics::Experiment Singlet state 010306 general physics Variable (mathematics) |
| Zdroj: | Journal of High Energy Physics Journal of High Energy Physics, Springer Verlag (Germany), 2016, 2016 (2), pp.147. ⟨10.1007/JHEP02(2016)147⟩ Journal of High Energy Physics, Vol. 1602, no.147, p. 147 (2016) |
| ISSN: | 1029-8479 |
| DOI: | 10.1007/JHEP02(2016)147⟩ |
| Popis: | We study the decay of a heavy Higgs boson into a light Higgs pair at one loop in the singlet extension of the Standard Model. To this purpose, we construct several renormalization schemes for the extended Higgs sector of the model. We apply these schemes to calculate the heavy-to-light Higgs decay width at next-to-leading order electroweak accuracy, and demonstrate that certain prescriptions lead to gauge-dependent results. We comprehensively examine how the NLO predictions depend on the relevant singlet model parameters, with emphasis on the trademark behavior of the quantum effects, and how these change under different renormalization schemes and a variable renormalization scale. Once all present constraints on the model are included, we find mild NLO corrections, typically of few percent, and with small theoretical uncertainties. 35 pages (plus appendix and references), 11 Figures, 10 Tables. V2: minor changes updated, matching the published journal version |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink