Searching for left sneutrino LSP at the LHC
Abstract: 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 `$\mu$ from $\nu$' supersymmetric standard model ($\mu \nu$SSM), where the presence of $R$-parity breaking couplings involving ri...
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Formato: | Artículo |
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WorldScientific Open Access
2020
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Acceso en línea: | https://repositorio.uca.edu.ar/handle/123456789/9539 http://arxiv.org/abs/1707.02471v5 http://arxiv.org/abs/1707.02471v5 |
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I33-R139123456789-9539 |
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Universidad Católica Argentina |
institution_str |
I-33 |
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R-139 |
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Repositorio Institucional de la Universidad Católica Argentina (UCA) |
language |
Inglés |
topic |
SNEUTRINOS FISICA NUCLEAR PARTICULAS ELEMENTALES |
spellingShingle |
SNEUTRINOS FISICA NUCLEAR PARTICULAS ELEMENTALES Ghosh, Pradipta Lara, Iñaki López-Fogliani, Daniel E. Muñoz, Carlos Ruiz de Austri, Roberto Searching for left sneutrino LSP at the LHC |
topic_facet |
SNEUTRINOS FISICA NUCLEAR PARTICULAS ELEMENTALES |
description |
Abstract: 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
`$\mu$ from $\nu$' supersymmetric standard model ($\mu \nu$SSM), where the
presence of $R$-parity breaking couplings involving right-handed neutrinos
solves the $\mu$ problem and reproduces neutrino data. The sneutrinos are pair
produced via a virtual $W$, $Z$ or $\gamma$ 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. |
format |
Artículo |
author |
Ghosh, Pradipta Lara, Iñaki López-Fogliani, Daniel E. Muñoz, Carlos Ruiz de Austri, Roberto |
author_facet |
Ghosh, Pradipta Lara, Iñaki López-Fogliani, Daniel E. Muñoz, Carlos Ruiz de Austri, Roberto |
author_sort |
Ghosh, Pradipta |
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 |
publisher |
WorldScientific Open Access |
publishDate |
2020 |
url |
https://repositorio.uca.edu.ar/handle/123456789/9539 http://arxiv.org/abs/1707.02471v5 http://arxiv.org/abs/1707.02471v5 |
work_keys_str_mv |
AT ghoshpradipta searchingforleftsneutrinolspatthelhc AT larainaki searchingforleftsneutrinolspatthelhc AT lopezfoglianidaniele searchingforleftsneutrinolspatthelhc AT munozcarlos searchingforleftsneutrinolspatthelhc AT ruizdeaustriroberto searchingforleftsneutrinolspatthelhc |
bdutipo_str |
Repositorios |
_version_ |
1764820528230563841 |