Searching for left sneutrino LSP at the LHC
We analyze relevant signals expected at the LHC for a left sneutrino as the lightest supersymmetric particle (LSP). The discussion is carried out in the "μ from V" supersymmetric standard model (μνSSM), where the presence of R-parity breaking couplings involving right-handed neutrinos solv...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_0217751X_v33_n18-19_p_Ghosh |
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todo:paper_0217751X_v33_n18-19_p_Ghosh2023-10-03T15:10:36Z Searching for left sneutrino LSP at the LHC Ghosh, P. Lara, I. López-Fogliani, D.E. Munõz, C. Ruiz De Austri, R. supersymmetric Standard Model Supersymmetry phenomenology We analyze relevant signals expected at the LHC for a left sneutrino as the lightest supersymmetric particle (LSP). The discussion is carried out in the "μ from V" supersymmetric standard model (μνSSM), where the presence of R-parity breaking couplings involving right-handed neutrinos solves the μ problem and reproduces neutrino data. The sneutrinos are pair produced via a virtual W, Z or γ in the s channel. From the prompt decay of a pair of left sneutrinos LSPs of any family, a significant diphoton signal plus missing transverse energy (MET) from neutrinos can be present in the mass range 118-132 GeV, with 13 TeV center-of-mass energy and an integrated luminosity of 100 fb-1. In addition, in the case of a pair of tau left sneutrinos LSPs, given the large value of the tau Yukawa coupling diphoton plus leptons and/or multileptons can appear. We find that the number of expected events for the multilepton signal, together with properly adopted search strategies, is sufficient to give a significant evidence for a sneutrino of mass in the range 130-310 GeV, even with the integrated luminosity of 20 fb-1. In the case of the signal producing diphoton plus leptons, an integrated luminosity of 100 fb-1 is needed to give a significant evidence in the mass range 95-145 GeV. Finally, we discuss briefly the presence of displaced vertices and the associated range of masses. © 2018 World Scientific Publishing Company. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_0217751X_v33_n18-19_p_Ghosh |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
supersymmetric Standard Model Supersymmetry phenomenology |
| spellingShingle |
supersymmetric Standard Model Supersymmetry phenomenology Ghosh, P. Lara, I. López-Fogliani, D.E. Munõz, C. Ruiz De Austri, R. Searching for left sneutrino LSP at the LHC |
| topic_facet |
supersymmetric Standard Model Supersymmetry phenomenology |
| description |
We analyze relevant signals expected at the LHC for a left sneutrino as the lightest supersymmetric particle (LSP). The discussion is carried out in the "μ from V" supersymmetric standard model (μνSSM), where the presence of R-parity breaking couplings involving right-handed neutrinos solves the μ problem and reproduces neutrino data. The sneutrinos are pair produced via a virtual W, Z or γ in the s channel. From the prompt decay of a pair of left sneutrinos LSPs of any family, a significant diphoton signal plus missing transverse energy (MET) from neutrinos can be present in the mass range 118-132 GeV, with 13 TeV center-of-mass energy and an integrated luminosity of 100 fb-1. In addition, in the case of a pair of tau left sneutrinos LSPs, given the large value of the tau Yukawa coupling diphoton plus leptons and/or multileptons can appear. We find that the number of expected events for the multilepton signal, together with properly adopted search strategies, is sufficient to give a significant evidence for a sneutrino of mass in the range 130-310 GeV, even with the integrated luminosity of 20 fb-1. In the case of the signal producing diphoton plus leptons, an integrated luminosity of 100 fb-1 is needed to give a significant evidence in the mass range 95-145 GeV. Finally, we discuss briefly the presence of displaced vertices and the associated range of masses. © 2018 World Scientific Publishing Company. |
| format |
JOUR |
| author |
Ghosh, P. Lara, I. López-Fogliani, D.E. Munõz, C. Ruiz De Austri, R. |
| author_facet |
Ghosh, P. Lara, I. López-Fogliani, D.E. Munõz, C. Ruiz De Austri, R. |
| author_sort |
Ghosh, P. |
| title |
Searching for left sneutrino LSP at the LHC |
| title_short |
Searching for left sneutrino LSP at the LHC |
| title_full |
Searching for left sneutrino LSP at the LHC |
| title_fullStr |
Searching for left sneutrino LSP at the LHC |
| title_full_unstemmed |
Searching for left sneutrino LSP at the LHC |
| title_sort |
searching for left sneutrino lsp at the lhc |
| url |
http://hdl.handle.net/20.500.12110/paper_0217751X_v33_n18-19_p_Ghosh |
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