Scotogenic model from an extended electroweak symmetry

• Published in: arXiv.org
• Main Authors: Van Dong, Phung, Van Loi, Duong
• Format: Paper Journal Article
• Language: English
• Published: Ithaca Cornell University Library, arXiv.org 06.08.2024
• Subjects: Dark matter; Neutrinos; Physics - High Energy Physics - Phenomenology; Physics - High Energy Physics - Theory
• ISSN: 2331-8422
• DOI: 10.48550/arxiv.2309.12091

We argue that the higher weak isospin \(SU(3)_L\) manifestly unifies dark matter and normal matter in its isomultiplets for which dark matter carries a conserved dark charge while normal matter does not. The resultant gauge symmetry is given by \(SU(3)_C\otimes SU(3)_L \otimes U(1)_X\otimes U(1)_G\), where the first factor is the color group, while the rest defines a theory of scotoelectroweak in which \(X\) and \(G\) determine electric charge \(Q=T_3-1/\sqrt{3}T_8+X\) and dark charge \(D=-2/\sqrt{3}T_8+G\). This setup provides both appropriate scotogenic neutrino masses and dark matter stability as preserved by a residual dark parity \(P_D=(-1)^D\). Interpretation of the dark charge is further discussed, given that \(SU(3)_L\) is broken at very high energy scale.