Sampling the μνSSM for displaced decays of the tau left sneutrino LSP at the LHC

Abstract: Within the framework of theμνSSM, a displaced dilepton signal is expected at the LHC from the decay of a tau left sneutrino as the lightest supersymmetric particle (LSP) with a mass in the range 45–100 GeV. We compare the predictions of this scenario with the ATLAS search for longlived...

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Autores principales: Kpatcha, Essodjolo, Lara, Iñaki, Lopez-Fogliani, Daniel E., Muñoz, Carlos, Nagata, Natsumi, Otono, Hidetoshi, Ruiz de Austri, Roberto
Formato: Artículo
Lenguaje:Inglés
Publicado: Springer 2020
Materias:
NEUTRINOS
μνSSM
PARTICULAS ELEMENTALES
FISICA NUCLEAR
Acceso en línea:https://repositorio.uca.edu.ar/handle/123456789/9647
Aporte de:
Repositorio Institucional de la Universidad Católica Argentina (UCA) de Universidad Católica Argentina
id I33-R139123456789-9647
record_format dspace
institution Universidad Católica Argentina
institution_str I-33
repository_str R-139
collection Repositorio Institucional de la Universidad Católica Argentina (UCA)
language Inglés
topic NEUTRINOS
μνSSM
PARTICULAS ELEMENTALES
FISICA NUCLEAR
spellingShingle NEUTRINOS
μνSSM
PARTICULAS ELEMENTALES
FISICA NUCLEAR
Kpatcha, Essodjolo
Lara, Iñaki
Lopez-Fogliani, Daniel E.
Muñoz, Carlos
Nagata, Natsumi
Otono, Hidetoshi
Ruiz de Austri, Roberto
Sampling the μνSSM for displaced decays of the tau left sneutrino LSP at the LHC
topic_facet NEUTRINOS
μνSSM
PARTICULAS ELEMENTALES
FISICA NUCLEAR
description Abstract: Within the framework of theμνSSM, a displaced dilepton signal is expected at the LHC from the decay of a tau left sneutrino as the lightest supersymmetric particle (LSP) with a mass in the range 45–100 GeV. We compare the predictions of this scenario with the ATLAS search for longlived particles using displaced lepton pairs in pp collisions, considering an optimization of the trigger requirements by means of a high level trigger that exploits tracker information. The analysis is carried out in the general case of three families of right-handed neutrino superfields, where all the neutrinos get contributions to their masses at tree level. To analyze the parameter space, we sample the μνSSM for a tau left sneutrino LSP with proper decay length cτ > 0.1 mm using a likelihood data-driven method, and paying special attention to reproduce the current experimental data on neutrino and Higgs physics, as well as flavor observables. The sneutrino is special in the μνSSM since its couplings have to be chosen so that the neutrino oscillation data are reproduced. We find that important regions of the parameter space can be probed at the LHC run 3.
format Artículo
author Kpatcha, Essodjolo
Lara, Iñaki
Lopez-Fogliani, Daniel E.
Muñoz, Carlos
Nagata, Natsumi
Otono, Hidetoshi
Ruiz de Austri, Roberto
author_facet Kpatcha, Essodjolo
Lara, Iñaki
Lopez-Fogliani, Daniel E.
Muñoz, Carlos
Nagata, Natsumi
Otono, Hidetoshi
Ruiz de Austri, Roberto
author_sort Kpatcha, Essodjolo
title Sampling the μνSSM for displaced decays of the tau left sneutrino LSP at the LHC
title_short Sampling the μνSSM for displaced decays of the tau left sneutrino LSP at the LHC
title_full Sampling the μνSSM for displaced decays of the tau left sneutrino LSP at the LHC
title_fullStr Sampling the μνSSM for displaced decays of the tau left sneutrino LSP at the LHC
title_full_unstemmed Sampling the μνSSM for displaced decays of the tau left sneutrino LSP at the LHC
title_sort sampling the μνssm for displaced decays of the tau left sneutrino lsp at the lhc
publisher Springer
publishDate 2020
url https://repositorio.uca.edu.ar/handle/123456789/9647
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