Resonant slepton production and right sneutrino dark matter in left-right supersymmetry

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http://hdl.handle.net/10138/187064

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Frank , M , Fuks , B , Huitu , K , Rai , S K & Waltari , H 2017 , ' Resonant slepton production and right sneutrino dark matter in left-right supersymmetry ' , Journal of High Energy Physics , vol. 2017 , no. 05 , 015 . https://doi.org/10.1007/JHEP05(2017)015

Title: Resonant slepton production and right sneutrino dark matter in left-right supersymmetry
Author: Frank, Mariana; Fuks, Benjamin; Huitu, Katri; Rai, Santosh Kumar; Waltari, Harri
Other contributor: University of Helsinki, Department of Physics
University of Helsinki, Department of Physics

Date: 2017-05-03
Language: eng
Number of pages: 32
Belongs to series: Journal of High Energy Physics
ISSN: 1029-8479
DOI: https://doi.org/10.1007/JHEP05(2017)015
URI: http://hdl.handle.net/10138/187064
Abstract: Right-handed sneutrinos are natural components of left-right symmetric supersymmetric models where the gauge sector is extended to include right-handed weak interactions. Unlike in other models where right-handed sneutrinos are gauge singlets, here the right sneutrino is part of a doublet and could be a dark matter candidate whose annihilation proceeds via gauge interactions. We investigate this possibility, and find that relic density, low-energy observable and direct supersymmetry search constraints can be satisfied when the lightest supersymmetric particle is a right-handed sneutrino. We introduce benchmarks for left-right supersymmetric realizations where either a sneutrino or a neutralino is the lightest superpartner. We then study the LHC signals arising through resonant right-handed slepton production via a W-R gauge-boson exchange that lead to final states enriched in leptons, additionally containing a large amount of missing transverse momentum, and featuring a low jet multiplicity. We find that such a resonant production would boost the chances of discovering these weakly interacting supersymmetric particles for a mass range extending beyond 1TeV already with a luminosity of 100 fb(-1). Finally, we compare sneutrino versus neutralino scenarios, and comment on differences with other sneutrino dark matter models.
Subject: Supersymmetry Phenomenology
LEFT-RIGHT MODEL
LEFT-RIGHT SYMMETRY
STRONG CP PROBLEM
PARITY
EXTENSIONS
BOSON
MASS
114 Physical sciences
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