Vector SIMP dark matter with approximate custodial symmetry
نویسندگان
چکیده
منابع مشابه
SIMP dark matter with gauged Z 3 symmetry
We consider a complex scalar field as SIMP dark matter in models with gauged Z3 discrete symmetry appearing as a remnant of dark local U(1). Dark matter (DM) annihilates dominantly by the 3-to-2 scattering, due to the DM cubic coupling in combination with the DM quartic coupling or the Z ′ gauge and dark Higgs couplings. We show that a light Z ′ gauge boson makes DM in kinetic equilibrium with ...
متن کاملHidden vector dark matter
We show that dark matter could be made of massive gauge bosons whose stability doesn’t require to impose by hand any discrete or global symmetry. Stability of gauge bosons can be guaranteed by the custodial symmetry associated to the gauge symmetry and particle content of the model. The particle content we consider to this end is based on a hidden sector made of a vector multiplet associated to...
متن کاملThe Custodial Symmetry
In the present work, we elucidate the meaning of the custodial symmetry and its importance at the phenomenological level in the framework of the standard model of the electroweak interactions and its possible extensions.
متن کاملDark-matter fermion from left-right symmetry
In an unconventional realization of left-right symmetry, the particle corresponding to the left-handed neutrino L [with SUð2ÞL interactions] in the right-handed sector, call it nR [with SUð2ÞR interactions], is not its Dirac mass partner, but a different particle which may be a dark-matter candidate. In parallel to leptogenesis in the SUð2ÞL sector, asymmetric production of nR may occur in the ...
متن کاملOn the origin of approximate custodial symmetry in the Two-Higgs Doublet Model
We argue that the consistent implementation of the multiple point principle (MPP) in the general non-supersymmetric two Higgs doublet model (2HDM) can lead to a set of approximate global custodial symmetries that ensure CP conservation in the Higgs sector and the absence of flavour changing neutral currents (FCNC) in the considered model. In particular the existence of a large set of degenerate...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2019
ISSN: 1029-8479
DOI: 10.1007/jhep07(2019)049