Dark matter and collider signals in supersymmetric U(1)' models with nonuniversal Z ' couplings

Show full item record



Permalink

http://hdl.handle.net/10138/309021

Citation

Frank , M , Huitu , K & Mondal , S 2019 , ' Dark matter and collider signals in supersymmetric U(1)' models with nonuniversal Z ' couplings ' , Physical Review D , vol. 100 , no. 11 , 115018 . https://doi.org/10.1103/PhysRevD.100.115018

Title: Dark matter and collider signals in supersymmetric U(1)' models with nonuniversal Z ' couplings
Author: Frank, Mariana; Huitu, Katri; Mondal, Subhadeep
Other contributor: University of Helsinki, Department of Physics
University of Helsinki, Particle Physics and Astrophysics


Date: 2019-12-09
Language: eng
Number of pages: 11
Belongs to series: Physical Review D
ISSN: 2470-0010
DOI: https://doi.org/10.1103/PhysRevD.100.115018
URI: http://hdl.handle.net/10138/309021
Abstract: We analyze supersymmetric models augmented by an extra U(1) gauge group. To avoid anomalies in these models without introducing exotics, we allow for family-dependent U(1)' charges, and choose a simple form for these, dependent on one U(1)' charge parameter only. With this choice, Z' decays into ditaus but not dileptons, weakening considerably the constraints on its mass. In the supersymmetric sector, the effect is to lower the singlino mass, allowing it to be the dark matter candidate. We investigate the dark matter constraints and collider implications of such models, with mostly singlinos, mostly Higgsinos, or a mixture of the two as the lightest supersymmetric particles. In these scenarios, Z' decays significantly into chargino or neutralino pairs, and thus indirectly into final state leptons. We devise benchmarks which, with adequate cuts, can yield signals visible at the high-luminosity LHC.
Subject: UNIFICATION
HIERARCHY
PROGRAM
SPHENO
FLAVOR
WEAK
114 Physical sciences
Rights:


Files in this item

Total number of downloads: Loading...

Files Size Format View
PhysRevD.100.115018.pdf 3.106Mb PDF View/Open

This item appears in the following Collection(s)

Show full item record