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We construct a list of minimal scale-invariant models at the TeV scale that generate one-loop neutrino mass and give viable dark matter candidates. The models generically contain a singlet scalar and a $Z_2$-odd sector comprised of singlet,…

高能物理 - 唯象学 · 物理学 2016-09-21 Amine Ahriche , Adrian Manning , Kristian L. McDonald , Salah Nasri

We explore the connection between Dark Matter and neutrinos in a model inspired by radiative Type-II seessaw and scotogenic scenarios. In our model, we introduce new electroweakly charged states (scalars and a vector-like fermion) and…

高能物理 - 唯象学 · 物理学 2021-06-16 Roberto A. Lineros , Mathias Pierre

By extending the Standard Model with singlet-doublet fermions and triplet scalars, all odd under a new $Z_2$ symmetry, we introduce a radiative seesaw model that can simultaneously account for dark matter, explain the existence of neutrino…

高能物理 - 唯象学 · 物理学 2019-09-16 J. Fiaschi , M. Klasen , S. May

We propose a model to explain tiny masses of neutrinos with the lepton number conservation, where neither too heavy particles beyond the TeV-scale nor tiny coupling constants are required. Assignments of conserving lepton numbers to new…

高能物理 - 唯象学 · 物理学 2017-11-29 Shinya Kanemura , Kodai Sakurai , Hiroaki Sugiyama

Observational evidences of nonzero neutrino masses and the existence of dark matter request physics beyond standard model. A model with extra scalars and leptonic vector-like fermions is introduced. By imposing a Z_2 symmetry, the neutrino…

高能物理 - 唯象学 · 物理学 2011-04-20 Chian-Shu Chen , Chung-Hsien Chou

We consider the radiative generation of neutrino mass through the interactions of neutrinos with MeV dark matter. We construct a realistic renormalizable model with one scalar doublet and one complex singlet together with three light…

高能物理 - 唯象学 · 物理学 2016-07-15 Abdesslam Arhrib , Céline Bœhm , Ernest Ma , Tzu-Chiang Yuan

The radiative neutrino mass model can relate neutrino masses and dark matter at a TeV scale. If we apply this model to thermal leptogenesis, we need to consider resonant leptogenesis at that scale. It requires both finely degenerate masses…

高能物理 - 唯象学 · 物理学 2016-03-23 Shoichi Kashiwase , Daijiro Suematsu

In these proceedings, we present a study of a combined singlet--doublet fermion and triplet scalar model for dark matter (DM). Together, these models form a simple extension of the Standard Model (SM) that can account for DM and explain the…

高能物理 - 唯象学 · 物理学 2019-05-16 Juri Fiaschi , Michael Klasen , Simon May

A minimal extension of the standard model to naturally generate small neutrino masses and provide a dark matter candidate is proposed. The dark matter particle is part of a new scalar doublet field that plays a crucial role in radiatively…

高能物理 - 唯象学 · 物理学 2014-07-03 Michael Gustafsson , Jose Miguel No , Maximiliano A. Rivera

We present a detailed study of a combined singlet-doublet scalar and singlet-doublet fermion model for dark matter. These models have only been studied separately in the past. We show that their combination allows for the radiative…

高能物理 - 唯象学 · 物理学 2018-11-14 S. Esch , M. Klasen , C. Yaguna

We consider a simple extension of the Standard Model providing dark matter and a TeV-scale seesaw mechanism that also allows for viable leptogenesis. In addition to the Standard Model degrees of freedom, the model contains a neutrinophilic…

高能物理 - 唯象学 · 物理学 2014-02-19 Wei Chao , Michael J. Ramsey-Musolf

We discuss some details for the model proposed in Ref. \cite{aks-prl}, in which neutrino oscillation, dark matter, and baryon asymmetry of the Universe can be simultaneously explained by the TeV-scale physics without introducing very high…

高能物理 - 唯象学 · 物理学 2009-09-01 Mayumi Aoki , Shinya Kanemura , Osamu Seto

We consider a simple extension of the Standard Model that can account for the dark matter and explain the existence of neutrino masses. The model includes a vector-like doublet of SU(2), a singlet fermion, and two scalar singlets, all of…

高能物理 - 唯象学 · 物理学 2016-02-17 Michael Klasen , David R. Lamprea , Carlos E. Yaguna

We present a model of radiative neutrino mass that automatically contains an accidental $Z_2$ symmetry and thus provides a stable dark matter candidate. This allows a common framework for the origin of neutrino mass and dark matter without…

高能物理 - 唯象学 · 物理学 2015-11-10 Amine Ahriche , Kristian L. McDonald , Salah Nasri , Takashi Toma

We present an economic model that establishes a link between neutrino masses and properties of the dark matter candidate. The particle content of the model can be divided into two groups: light particles with masses lighter than the…

高能物理 - 唯象学 · 物理学 2010-09-09 Yasaman Farzan

We present a detailed study of a combined singlet-doublet fermion and triplet scalar model for dark matter. These models have only been studied separately in the past. Together, they form a simple extension of the Standard Model that can…

高能物理 - 唯象学 · 物理学 2019-05-09 Juri Fiaschi , Michael Klasen , Simon May

We investigate a dark matter model that couples to the standard model through a one-loop interaction with neutrinos, where the mediator particles also generate neutrino masses. We perform a global fit that incorporates dark matter relic…

高能物理 - 唯象学 · 物理学 2025-03-07 Karen Macías Cárdenas , Gopolang Mohlabeng , Aaron C. Vincent

We propose an extended version of the standard model, in which neutrino oscillation, dark matter, and baryon asymmetry of the Universe can be simultaneously explained by the TeV-scale physics without assuming unnatural hierarchy among the…

高能物理 - 唯象学 · 物理学 2009-02-27 Mayumi Aoki , Shinya Kanemura , Osamu Seto

We propose a model where neutrino masses are generated at three loop order but neutrinoless double beta decay occurs at one loop. Thus we can have large neutrinoless double beta decay observable in the future experiments even when the…

高能物理 - 唯象学 · 物理学 2018-06-21 Julien Alcaide , Dipankar Das , Arcadi Santamaria

It is well known that stable weak scale particles are viable dark matter candidates since the annihilation cross section is naturally about the right magnitude to leave the correct thermal residual abundance. Many dark matter searches have…

高能物理 - 唯象学 · 物理学 2009-09-15 Eduardo Ponton , Lisa Randall
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