Electroweak superpartners scrutinized at the LHC in events with multi-leptons

Abstract: We analyze a multi-lepton signal plus missing transverse energy from neutrinos expected at the LHC for a bino-like neutralino as the lightest supersymmetric particle (LSP), when the left sneutrino is the next-to-LSP and hence a suitable source of binos. The discussion is carried out in the...

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Detalles Bibliográficos
Autores principales: Lara, Iñaki, López-Fogliani, Daniel E., Muñoz, Carlos
Formato: Artículo
Lenguaje:Inglés
Publicado: Elsevier 2020
Materias:
NEUTRINOS
LEPTONES
FISICA
PARTICULAS ELEMENTALES
SUPERSIMETRIA
FENOMENOLOGIA
Acceso en línea:https://repositorio.uca.edu.ar/handle/123456789/9716
Aporte de:
Repositorio Institucional de la Universidad Católica Argentina (UCA) de Universidad Católica Argentina
id I33-R139123456789-9716
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
LEPTONES
FISICA
PARTICULAS ELEMENTALES
SUPERSIMETRIA
FENOMENOLOGIA
spellingShingle NEUTRINOS
LEPTONES
FISICA
PARTICULAS ELEMENTALES
SUPERSIMETRIA
FENOMENOLOGIA
Lara, Iñaki
López-Fogliani, Daniel E.
Muñoz, Carlos
Electroweak superpartners scrutinized at the LHC in events with multi-leptons
topic_facet NEUTRINOS
LEPTONES
FISICA
PARTICULAS ELEMENTALES
SUPERSIMETRIA
FENOMENOLOGIA
description Abstract: We analyze a multi-lepton signal plus missing transverse energy from neutrinos expected at the LHC for a bino-like neutralino as the lightest supersymmetric particle (LSP), when the left sneutrino is the next-to-LSP and hence a suitable source of binos. The discussion is carried out in the framework of the μνSSM, where the presence of R-parity violating (RPV) couplings involving right-handed neutrinos solves the μ problem and can reproduce simultaneously the neutrino data. Left sneutrinos/sleptons are pair-produced at pp collisions decaying to binos, with the latter decaying via RPV to Wℓ or Zν. This signal can be compared with LHC searches for electroweak superpartners through chargino–neutralino production. The reduced cross section of the sneutrino/slepton production in comparison with the one of the latter process, limits the sensitivity of the searches to small sneutrino/slepton masses. Although the resulting compressed spectrum typically evades the aforementioned searches, we show that analyses using recursive jigsaw reconstruction are sensitive to these scenarios. As a by-product, we find that the region of bino masses 110–120 GeV and sneutrino masses 120–140 GeV can give rise to a tri-lepton signal compatible with the local excess recently reported by ATLAS.
format Artículo
author Lara, Iñaki
López-Fogliani, Daniel E.
Muñoz, Carlos
author_facet Lara, Iñaki
López-Fogliani, Daniel E.
Muñoz, Carlos
author_sort Lara, Iñaki
title Electroweak superpartners scrutinized at the LHC in events with multi-leptons
title_short Electroweak superpartners scrutinized at the LHC in events with multi-leptons
title_full Electroweak superpartners scrutinized at the LHC in events with multi-leptons
title_fullStr Electroweak superpartners scrutinized at the LHC in events with multi-leptons
title_full_unstemmed Electroweak superpartners scrutinized at the LHC in events with multi-leptons
title_sort electroweak superpartners scrutinized at the lhc in events with multi-leptons
publisher Elsevier
publishDate 2020
url https://repositorio.uca.edu.ar/handle/123456789/9716
work_keys_str_mv AT larainaki electroweaksuperpartnersscrutinizedatthelhcineventswithmultileptons
AT lopezfoglianidaniele electroweaksuperpartnersscrutinizedatthelhcineventswithmultileptons
AT munozcarlos electroweaksuperpartnersscrutinizedatthelhcineventswithmultileptons
bdutipo_str Repositorios
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