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...
Guardado en:
| Autores principales: | , , , , |
|---|---|
| Formato: | Artículo |
| Lenguaje: | Inglés |
| Publicado: |
WorldScientific Open Access
2020
|
| Materias: | |
| Acceso en línea: | https://repositorio.uca.edu.ar/handle/123456789/9539 http://arxiv.org/abs/1707.02471v5 http://arxiv.org/abs/1707.02471v5 |
| Aporte de: |
| id |
I33-R139123456789-9539 |
|---|---|
| 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 |
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 |