Looking for the left sneutrino LSP with displaced-vertex searches
- Autores
- Lara, Iñaki; López-Fogliani, Daniel E.; Muñoz, Carlos; Nagata, Natsumi; Otono, Hidetoshi; Ruiz de Austri, Roberto
- Año de publicación
- 2018
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Fil: Lara, Iñaki. Universidad Autónoma de Madrid. Instituto de Física Teórica; España
Fil: Lara, Iñaki. Consejo Superior de Investigaciones Científicas; España
Fil: Lopez-Fogliani, Daniel E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires. Departamento de Física; Argentina
Fil: Lopez-Fogliani, Daniel E. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Lopez-Fogliani, Daniel E. Pontificia Universidad Católica Argentina. Facultad de Ingeniería y Ciencias Agrarias; Argentina
Fil: Carlos Muñoz. Universidad Autónoma de Madrid. Instituto de Física Teórica; España
Fil: Carlos Muñoz. Consejo Superior de Investigaciones Científicas; España
Fil: Nagata, Natsumi. University of Tokyo. Department of Physics; Japón
Fil: Otono, Hidetoshi. Kyushu University. Research Center for Advanced Particle Physics; Japón
Fil: Ruiz de Austri, Roberto. Consejo Superior de Investigaciones Científicas; España
Fil: Ruiz de Austri, Roberto. Universitat de Valencia. Instituto de Física Corpuscular; España
Abstract: We analyze a displaced dilepton signal expected at the LHC for a tau left sneutrino as the lightest supersymmetric particle with a mass in the range $45$-$100$ GeV. The sneutrinos are pair produced via a virtual $W$, $Z$ or $\gamma$ in the $s$ channel and, given the large value of the tau Yukawa coupling, their decays into two dileptons or a dilepton plus missing transverse energy from neutrinos can be significant. The discussion is carried out in the $\mu \nu$SSM, where the presence of $R$-parity violating couplings involving right-handed neutrinos solves the $\mu$ problem and can reproduce the neutrino data. To probe the tau left sneutrinos we compare the predictions of the $\mu \nu$SSM with the ATLAS search for long-lived particles using displaced lepton pairs in $pp$ collisions at $\sqrt s= 8$ TeV, allowing us to constrain the parameter space of the model. We also consider an optimization of the trigger requirements used in existing displaced-vertex searches by means of a High Level Trigger that exploits tracker information. This optimization is generically useful for a light metastable particle decaying into soft charged leptons. The constraints on the sneutrino turn out to be more stringent. We finally discuss the prospects for the $13$ TeV LHC searches as well as further potential optimizations. - Fuente
- Physical Review D. 2018, 98
- Materia
-
PARTICULAS ELEMENTALES
FISICA NUCLEAR
ENERGIA
SNEUTRINOS - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
.jpg)
- Institución
- Pontificia Universidad Católica Argentina
- OAI Identificador
- oai:ucacris:123456789/9511
Ver los metadatos del registro completo
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Looking for the left sneutrino LSP with displaced-vertex searchesLara, IñakiLópez-Fogliani, Daniel E.Muñoz, CarlosNagata, NatsumiOtono, HidetoshiRuiz de Austri, RobertoPARTICULAS ELEMENTALESFISICA NUCLEARENERGIASNEUTRINOSFil: Lara, Iñaki. Universidad Autónoma de Madrid. Instituto de Física Teórica; EspañaFil: Lara, Iñaki. Consejo Superior de Investigaciones Científicas; EspañaFil: Lopez-Fogliani, Daniel E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires. Departamento de Física; ArgentinaFil: Lopez-Fogliani, Daniel E. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Lopez-Fogliani, Daniel E. Pontificia Universidad Católica Argentina. Facultad de Ingeniería y Ciencias Agrarias; ArgentinaFil: Carlos Muñoz. Universidad Autónoma de Madrid. Instituto de Física Teórica; EspañaFil: Carlos Muñoz. Consejo Superior de Investigaciones Científicas; EspañaFil: Nagata, Natsumi. University of Tokyo. Department of Physics; JapónFil: Otono, Hidetoshi. Kyushu University. Research Center for Advanced Particle Physics; JapónFil: Ruiz de Austri, Roberto. Consejo Superior de Investigaciones Científicas; EspañaFil: Ruiz de Austri, Roberto. Universitat de Valencia. Instituto de Física Corpuscular; EspañaAbstract: We analyze a displaced dilepton signal expected at the LHC for a tau left sneutrino as the lightest supersymmetric particle with a mass in the range $45$-$100$ GeV. The sneutrinos are pair produced via a virtual $W$, $Z$ or $\gamma$ in the $s$ channel and, given the large value of the tau Yukawa coupling, their decays into two dileptons or a dilepton plus missing transverse energy from neutrinos can be significant. The discussion is carried out in the $\mu \nu$SSM, where the presence of $R$-parity violating couplings involving right-handed neutrinos solves the $\mu$ problem and can reproduce the neutrino data. To probe the tau left sneutrinos we compare the predictions of the $\mu \nu$SSM with the ATLAS search for long-lived particles using displaced lepton pairs in $pp$ collisions at $\sqrt s= 8$ TeV, allowing us to constrain the parameter space of the model. We also consider an optimization of the trigger requirements used in existing displaced-vertex searches by means of a High Level Trigger that exploits tracker information. This optimization is generically useful for a light metastable particle decaying into soft charged leptons. The constraints on the sneutrino turn out to be more stringent. We finally discuss the prospects for the $13$ TeV LHC searches as well as further potential optimizations.American Physical Society2018info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttps://repositorio.uca.edu.ar/handle/123456789/95112470-0010 (impreso)2470-0029 (online)10.1103/PhysRevD.98.075004http://arxiv.org/abs/1804.00067v2http://arxiv.org/abs/1804.00067v2http://arxiv.org/abs/1804.00067v2http://arxiv.org/abs/1804.00067v2http://arxiv.org/abs/1804.00067v2Lara, I. Looking for the left sneutrino LSP with displaced-vertex searches [en línea]. Physical Review D. 2018, 98. doi:10.1103/PhysRevD.98.075004 Disponible en: https://repositorio.uca.edu.ar/handle/123456789/9511Physical Review D. 2018, 98reponame:Repositorio Institucional (UCA)instname:Pontificia Universidad Católica Argentinaenginfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/4.0/2025-07-03T10:57:09Zoai:ucacris:123456789/9511instacron:UCAInstitucionalhttps://repositorio.uca.edu.ar/Universidad privadaNo correspondehttps://repositorio.uca.edu.ar/oaiclaudia_fernandez@uca.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:25852025-07-03 10:57:09.368Repositorio Institucional (UCA) - Pontificia Universidad Católica Argentinafalse |
| dc.title.none.fl_str_mv |
Looking for the left sneutrino LSP with displaced-vertex searches |
| title |
Looking for the left sneutrino LSP with displaced-vertex searches |
| spellingShingle |
Looking for the left sneutrino LSP with displaced-vertex searches Lara, Iñaki PARTICULAS ELEMENTALES FISICA NUCLEAR ENERGIA SNEUTRINOS |
| title_short |
Looking for the left sneutrino LSP with displaced-vertex searches |
| title_full |
Looking for the left sneutrino LSP with displaced-vertex searches |
| title_fullStr |
Looking for the left sneutrino LSP with displaced-vertex searches |
| title_full_unstemmed |
Looking for the left sneutrino LSP with displaced-vertex searches |
| title_sort |
Looking for the left sneutrino LSP with displaced-vertex searches |
| dc.creator.none.fl_str_mv |
Lara, Iñaki López-Fogliani, Daniel E. Muñoz, Carlos Nagata, Natsumi Otono, Hidetoshi Ruiz de Austri, Roberto |
| author |
Lara, Iñaki |
| author_facet |
Lara, Iñaki López-Fogliani, Daniel E. Muñoz, Carlos Nagata, Natsumi Otono, Hidetoshi Ruiz de Austri, Roberto |
| author_role |
author |
| author2 |
López-Fogliani, Daniel E. Muñoz, Carlos Nagata, Natsumi Otono, Hidetoshi Ruiz de Austri, Roberto |
| author2_role |
author author author author author |
| dc.subject.none.fl_str_mv |
PARTICULAS ELEMENTALES FISICA NUCLEAR ENERGIA SNEUTRINOS |
| topic |
PARTICULAS ELEMENTALES FISICA NUCLEAR ENERGIA SNEUTRINOS |
| dc.description.none.fl_txt_mv |
Fil: Lara, Iñaki. Universidad Autónoma de Madrid. Instituto de Física Teórica; España Fil: Lara, Iñaki. Consejo Superior de Investigaciones Científicas; España Fil: Lopez-Fogliani, Daniel E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires. Departamento de Física; Argentina Fil: Lopez-Fogliani, Daniel E. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Lopez-Fogliani, Daniel E. Pontificia Universidad Católica Argentina. Facultad de Ingeniería y Ciencias Agrarias; Argentina Fil: Carlos Muñoz. Universidad Autónoma de Madrid. Instituto de Física Teórica; España Fil: Carlos Muñoz. Consejo Superior de Investigaciones Científicas; España Fil: Nagata, Natsumi. University of Tokyo. Department of Physics; Japón Fil: Otono, Hidetoshi. Kyushu University. Research Center for Advanced Particle Physics; Japón Fil: Ruiz de Austri, Roberto. Consejo Superior de Investigaciones Científicas; España Fil: Ruiz de Austri, Roberto. Universitat de Valencia. Instituto de Física Corpuscular; España Abstract: We analyze a displaced dilepton signal expected at the LHC for a tau left sneutrino as the lightest supersymmetric particle with a mass in the range $45$-$100$ GeV. The sneutrinos are pair produced via a virtual $W$, $Z$ or $\gamma$ in the $s$ channel and, given the large value of the tau Yukawa coupling, their decays into two dileptons or a dilepton plus missing transverse energy from neutrinos can be significant. The discussion is carried out in the $\mu \nu$SSM, where the presence of $R$-parity violating couplings involving right-handed neutrinos solves the $\mu$ problem and can reproduce the neutrino data. To probe the tau left sneutrinos we compare the predictions of the $\mu \nu$SSM with the ATLAS search for long-lived particles using displaced lepton pairs in $pp$ collisions at $\sqrt s= 8$ TeV, allowing us to constrain the parameter space of the model. We also consider an optimization of the trigger requirements used in existing displaced-vertex searches by means of a High Level Trigger that exploits tracker information. This optimization is generically useful for a light metastable particle decaying into soft charged leptons. The constraints on the sneutrino turn out to be more stringent. We finally discuss the prospects for the $13$ TeV LHC searches as well as further potential optimizations. |
| description |
Fil: Lara, Iñaki. Universidad Autónoma de Madrid. Instituto de Física Teórica; España |
| publishDate |
2018 |
| dc.date.none.fl_str_mv |
2018 |
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info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
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article |
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publishedVersion |
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https://repositorio.uca.edu.ar/handle/123456789/9511 2470-0010 (impreso) 2470-0029 (online) 10.1103/PhysRevD.98.075004 http://arxiv.org/abs/1804.00067v2 http://arxiv.org/abs/1804.00067v2 http://arxiv.org/abs/1804.00067v2 http://arxiv.org/abs/1804.00067v2 http://arxiv.org/abs/1804.00067v2 Lara, I. Looking for the left sneutrino LSP with displaced-vertex searches [en línea]. Physical Review D. 2018, 98. doi:10.1103/PhysRevD.98.075004 Disponible en: https://repositorio.uca.edu.ar/handle/123456789/9511 |
| url |
https://repositorio.uca.edu.ar/handle/123456789/9511 http://arxiv.org/abs/1804.00067v2 |
| identifier_str_mv |
2470-0010 (impreso) 2470-0029 (online) 10.1103/PhysRevD.98.075004 Lara, I. Looking for the left sneutrino LSP with displaced-vertex searches [en línea]. Physical Review D. 2018, 98. doi:10.1103/PhysRevD.98.075004 Disponible en: https://repositorio.uca.edu.ar/handle/123456789/9511 |
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eng |
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eng |
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American Physical Society |
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American Physical Society |
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Repositorio Institucional (UCA) - Pontificia Universidad Católica Argentina |
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claudia_fernandez@uca.edu.ar |
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