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Ghosh, P.; Lara, I.; López-Fogliani, D.E.; Munõz, C.; Ruiz De Austri, R. "Searching for left sneutrino LSP at the LHC" (2018) International Journal of Modern Physics A. 33(18-19)
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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 "μ from V" supersymmetric standard model (μνSSM), where the presence of R-parity breaking couplings involving right-handed neutrinos solves the μ problem and reproduces neutrino data. The sneutrinos are pair produced via a virtual W, Z or γ 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. © 2018 World Scientific Publishing Company.

Registro:

Documento: Artículo
Título:Searching for left sneutrino LSP at the LHC
Autor:Ghosh, P.; Lara, I.; López-Fogliani, D.E.; Munõz, C.; Ruiz De Austri, R.
Filiación:Department of Physics, Vidyasagar College, Sankar Ghose Lane 39, Kolkata, 700006, India
Department of Physics, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India
Departamento de Física Teórica, Universidad Autónoma de Madrid, Campus de Cantoblanco, Madrid, Spain
Instituto de Física Teórica UAM-CSIC, Campus de Cantoblanco, Madrid, Spain
Instituto de Física de Buenos Aires UBA, CONICET, Departamento de Física, Facultad de Ciencia Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, 1428, Argentina
Pontificia Universidad Católica Argentina, Buenos Aires, 1107, Argentina
Instituto de Física Corpuscular CSIC-UV, C/Catedrático José, Beltrán 2, Paterna, Valencia, 46980, Spain
Palabras clave:supersymmetric Standard Model; Supersymmetry phenomenology
Año:2018
Volumen:33
Número:18-19
DOI: http://dx.doi.org/10.1142/S0217751X18501105
Título revista:International Journal of Modern Physics A
Título revista abreviado:Int. J. Mod. Phys. A
ISSN:0217751X
CODEN:IMPAE
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0217751X_v33_n18-19_p_Ghosh

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Citas:

---------- APA ----------
Ghosh, P., Lara, I., López-Fogliani, D.E., Munõz, C. & Ruiz De Austri, R. (2018) . Searching for left sneutrino LSP at the LHC. International Journal of Modern Physics A, 33(18-19).
http://dx.doi.org/10.1142/S0217751X18501105
---------- CHICAGO ----------
Ghosh, P., Lara, I., López-Fogliani, D.E., Munõz, C., Ruiz De Austri, R. "Searching for left sneutrino LSP at the LHC" . International Journal of Modern Physics A 33, no. 18-19 (2018).
http://dx.doi.org/10.1142/S0217751X18501105
---------- MLA ----------
Ghosh, P., Lara, I., López-Fogliani, D.E., Munõz, C., Ruiz De Austri, R. "Searching for left sneutrino LSP at the LHC" . International Journal of Modern Physics A, vol. 33, no. 18-19, 2018.
http://dx.doi.org/10.1142/S0217751X18501105
---------- VANCOUVER ----------
Ghosh, P., Lara, I., López-Fogliani, D.E., Munõz, C., Ruiz De Austri, R. Searching for left sneutrino LSP at the LHC. Int. J. Mod. Phys. A. 2018;33(18-19).
http://dx.doi.org/10.1142/S0217751X18501105