Majorana dark matter with B+L gauge symmetry

A bstract We present a new model that extends the Standard Model (SM) with the local B + L symmetry, and point out that the lightest new fermion ζ, introduced to cancel anomalies and stabilized automatically by the B + L symmetry, can serve as the cold dark matter candidate. We study constraints on...

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Bibliographic Details
Published in:The journal of high energy physics 2017-04, Vol.2017 (4), p.1-17, Article 34
Main Authors: Chao, Wei, Guo, Huai-Ke, Zhang, Yongchao
Format: Article
Language:English
Subjects:
Anomalies
Beyond Standard Model
Classical and Quantum Gravitation
Cold dark matter
Constraint modelling
Cosmology of Theories beyond the SM
Coupling
Dark matter
Density
Electroweak model
Elementary Particles
Fermions
Gauge Symmetry
High energy physics
Mathematical models
Physics
Physics and Astronomy
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Quantum Field Theories
Quantum Field Theory
Quantum Physics
Regular Article - Theoretical Physics
Relativity Theory
Standard model (particle physics)
String Theory
Symmetry
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Summary:A bstract We present a new model that extends the Standard Model (SM) with the local B + L symmetry, and point out that the lightest new fermion ζ, introduced to cancel anomalies and stabilized automatically by the B + L symmetry, can serve as the cold dark matter candidate. We study constraints on the model from Higgs measurements, electroweak precision measurements as well as the relic density and direct detections of the dark matter. Numerical results reveal that the pseudo-vector coupling of ζ with Z and the Yukawa coupling with the SM Higgs are highly constrained by the latest results of LUX, while there are viable parameter space that could satisfy all the constraints and give testable predictions.
ISSN:1029-8479
1029-8479
DOI:10.1007/JHEP04(2017)034