Impact of Higgs physics on the parameter space of the $$\mu \nu \mathrm{SSM}$$ μνSSM
Abstract Given the increasing number of experimental data, together with the precise measurement of the properties of the Higgs boson at the LHC, the parameter space of supersymmetric models starts to be constrained. We carry out a detailed analysis of this issue in the framework of the $$\mu \nu $$...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2020-04-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | http://link.springer.com/article/10.1140/epjc/s10052-020-7859-0 |
| _version_ | 1818267186731417600 |
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| author | Essodjolo Kpatcha Daniel E. López-Fogliani Carlos Muñoz Roberto Ruiz de Austri |
| author_facet | Essodjolo Kpatcha Daniel E. López-Fogliani Carlos Muñoz Roberto Ruiz de Austri |
| author_sort | Essodjolo Kpatcha |
| collection | DOAJ |
| description | Abstract Given the increasing number of experimental data, together with the precise measurement of the properties of the Higgs boson at the LHC, the parameter space of supersymmetric models starts to be constrained. We carry out a detailed analysis of this issue in the framework of the $$\mu \nu $$ μν SSM. In this model, three families of right-handed neutrino superfields are present in order to solve the $$\mu $$ μ problem and simultaneously reproduce neutrino physics. The new couplings and sneutrino vacuum expectation values in the $$\mu \nu $$ μν SSM induce new mixing of states, and, in particular, the three right sneutrinos can be substantially mixed with the neutral Higgses. After diagonalization, the masses of the corresponding three singlet-like eigenstates can be smaller or larger than the mass of the Higgs, or even degenerated with it. We analyze whether these situations are still compatible with the experimental results. To address it we scan the parameter space of the Higgs sector of the model. In particular, we sample the $$\mu \nu $$ μν SSM using a powerful likelihood data-driven method, paying special attention to satisfy the constraints coming from Higgs sector measurements/limits (using HiggsBounds and HiggsSignals), as well as a class of flavor observables such as B and $$\mu $$ μ decays, while muon $$g-2$$ g-2 is briefly discussed. We find that large regions of the parameter space of the $$\mu \nu $$ μν SSM are viable, containing an interesting phenomenology that could be probed at the LHC. |
| first_indexed | 2024-12-12T20:18:36Z |
| format | Article |
| id | doaj.art-f2aae4e74110482f874bef65d008d000 |
| institution | Directory Open Access Journal |
| issn | 1434-6044 1434-6052 |
| language | English |
| last_indexed | 2024-12-12T20:18:36Z |
| publishDate | 2020-04-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-f2aae4e74110482f874bef65d008d0002022-12-22T00:13:19ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60441434-60522020-04-0180414310.1140/epjc/s10052-020-7859-0Impact of Higgs physics on the parameter space of the $$\mu \nu \mathrm{SSM}$$ μνSSMEssodjolo Kpatcha0Daniel E. López-Fogliani1Carlos Muñoz2Roberto Ruiz de Austri3Departamento de Física Teórica, Universidad Autónoma de Madrid (UAM)Departamento de Física, Instituto de Física de Buenos Aires UBA & CONICET, Facultad de Ciencia Exactas y Naturales, Universidad de Buenos AiresDepartamento de Física Teórica, Universidad Autónoma de Madrid (UAM)Instituto de Física Corpuscular CSIC-UVAbstract Given the increasing number of experimental data, together with the precise measurement of the properties of the Higgs boson at the LHC, the parameter space of supersymmetric models starts to be constrained. We carry out a detailed analysis of this issue in the framework of the $$\mu \nu $$ μν SSM. In this model, three families of right-handed neutrino superfields are present in order to solve the $$\mu $$ μ problem and simultaneously reproduce neutrino physics. The new couplings and sneutrino vacuum expectation values in the $$\mu \nu $$ μν SSM induce new mixing of states, and, in particular, the three right sneutrinos can be substantially mixed with the neutral Higgses. After diagonalization, the masses of the corresponding three singlet-like eigenstates can be smaller or larger than the mass of the Higgs, or even degenerated with it. We analyze whether these situations are still compatible with the experimental results. To address it we scan the parameter space of the Higgs sector of the model. In particular, we sample the $$\mu \nu $$ μν SSM using a powerful likelihood data-driven method, paying special attention to satisfy the constraints coming from Higgs sector measurements/limits (using HiggsBounds and HiggsSignals), as well as a class of flavor observables such as B and $$\mu $$ μ decays, while muon $$g-2$$ g-2 is briefly discussed. We find that large regions of the parameter space of the $$\mu \nu $$ μν SSM are viable, containing an interesting phenomenology that could be probed at the LHC.http://link.springer.com/article/10.1140/epjc/s10052-020-7859-0 |
| spellingShingle | Essodjolo Kpatcha Daniel E. López-Fogliani Carlos Muñoz Roberto Ruiz de Austri Impact of Higgs physics on the parameter space of the $$\mu \nu \mathrm{SSM}$$ μνSSM European Physical Journal C: Particles and Fields |
| title | Impact of Higgs physics on the parameter space of the $$\mu \nu \mathrm{SSM}$$ μνSSM |
| title_full | Impact of Higgs physics on the parameter space of the $$\mu \nu \mathrm{SSM}$$ μνSSM |
| title_fullStr | Impact of Higgs physics on the parameter space of the $$\mu \nu \mathrm{SSM}$$ μνSSM |
| title_full_unstemmed | Impact of Higgs physics on the parameter space of the $$\mu \nu \mathrm{SSM}$$ μνSSM |
| title_short | Impact of Higgs physics on the parameter space of the $$\mu \nu \mathrm{SSM}$$ μνSSM |
| title_sort | impact of higgs physics on the parameter space of the mu nu mathrm ssm μνssm |
| url | http://link.springer.com/article/10.1140/epjc/s10052-020-7859-0 |
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