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Non-Abelian Vector Boson Dark Matter (VBDM), arising from an $SU(2)_N$ extension of the Standard Model (SM) has been studied. The Dark Matter (DM) is stabilized by imposing an additional discrete global symmetry $S^{'}$ with charges, such…

High Energy Physics - Phenomenology · Physics 2019-07-05 Himadri Roy

We study simple effective models of fermionic WIMP dark matter, where the dark matter candidate is a mixture of a Standard Model singlet and an n-plet of SU(2) with n >= 3, stabilized by a discrete symmetry. The dark matter mass is assumed…

High Energy Physics - Phenomenology · Physics 2017-10-25 A. Bharucha , F. Brümmer , R. Ruffault

The direct searches for Superymmetry at colliders can be complemented by direct searches for dark matter (DM) in underground experiments, if one assumes the Lightest Supersymmetric Particle (LSP) provides the dark matter of the universe. It…

High Energy Physics - Phenomenology · Physics 2015-06-04 C. Beskidt , W. de Boer , D. I. Kazakov , F. Ratnikov

We explore the parameter space of a U(1) extension of the standard model -- also called the super-weak model -- from the point of view of explaining the observed dark matter energy density in the Universe. The new particle spectrum contains…

High Energy Physics - Phenomenology · Physics 2022-01-25 Sho Iwamoto , Károly Seller , Zoltán Trócsányi

We study a model with a vector dark matter (DM) candidate interacting with the SM charged leptons through a scalar portal. The dark matter candidate acquires mass when the complex scalar breaks an abelian gauge symmetry spontaneously. The…

High Energy Physics - Phenomenology · Physics 2021-12-22 Karim Ghorbani

We examine the possibility that direct dark matter detection experiments find decay products from sterile neutrino dark mater in $U(1)_{B-L}$ and $U(1)_R$ models. This is possible if the sterile neutrino interacts with a light gauge boson…

High Energy Physics - Phenomenology · Physics 2020-11-13 Osamu Seto , Takashi Shimomura

Comparisons of the coverage of current and proposed dark matter searches can help us to understand the context in which a discovery of particle dark matter would be made. In some scenarios, a discovery could be reinforced by information…

We analyze a model with unbroken B-L gauge symmetry where neutrino masses are generated at one loop, after spontaneous breaking of a global U(1) symmetry. These symmetries ensure dark matter stability and the Diracness of neutrinos. Within…

High Energy Physics - Phenomenology · Physics 2021-05-14 Carlos Alvarado , Cesar Bonilla , Julio Leite , José W. F. Valle

An overview of supersymmetry searches is presented, covering collider experiments, direct and indirect searches for supersymmetric dark matter. Recent LHC experimental results are reviewed, and the constraints from B-meson decays are…

High Energy Physics - Phenomenology · Physics 2015-11-11 Vasiliki A. Mitsou

The strong direct detection limits could be pointing to dark matter -- nucleus scattering at loop level. We study in detail the prototype example of an electroweak singlet (Dirac or Majorana) dark matter fermion coupled to an extended dark…

High Energy Physics - Phenomenology · Physics 2022-01-11 Juan Herrero-Garcia , Emiliano Molinaro , Michael A. Schmidt

We propose here a set of new methods to directly detect light mass dark matter through its scattering with abundant atmospheric muons or accelerator beams. Firstly, we plan to use the free cosmic-ray muons interacting with dark matter in a…

We study a classically scale-invariant model with an electroweak singlet complex scalar mediator together with an anomaly free set of two fermionic dark matters. We introduce $U(1)_X$ gauge symmetry with a new charge $X$ in the dark sector…

High Energy Physics - Phenomenology · Physics 2019-11-12 Yeong Gyun Kim , Kang Young Lee , Soo-hyeon Nam

Future electroweak precision measurements in the Circular Electron Positron Collider (CEPC) project would significantly improve the precision of electroweak oblique parameters. We evaluate the expected precision through global fits, and…

High Energy Physics - Phenomenology · Physics 2017-06-06 Chengfeng Cai , Zhao-Huan Yu , Hong-Hao Zhang

In this work we present a common framework for neutrino mass and dark matter. Specifically, we work with a local $\mathcal{B-L}$ extension of the standard model which has three right-handed neutrinos, $n_{R_{i}}$, and some extra scalars,…

High Energy Physics - Phenomenology · Physics 2015-09-23 B. L. Sánchez-Vega , E. R. Schmitz

Dark matter candidates arising in models of particle physics incorporating weak scale supersymmetry may produce detectable signals through their annihilation into neutrinos, photons, or positrons. A large number of relevant experiments are…

Astrophysics · Physics 2009-10-09 Jonathan L. Feng , Konstantin T. Matchev , Frank Wilczek

In this work we show how the inclusion of dark matter (DM) direct detection upper bounds in a theoretically consistent manner can affect the allowed parameter space of a DM model. Traditionally, the limits from DM direct detection…

High Energy Physics - Phenomenology · Physics 2016-03-14 Cristina Marcos , Miguel Peiro , Sandra Robles

We propose a flavored $U(1)_{e\mu}$ neutrino mass and dark matter~(DM) model to explain the recent DArk Matter Particle Explorer (DAMPE) data, which feature an excess on the cosmic ray electron plus positron flux around 1.4 TeV. Only the…

High Energy Physics - Phenomenology · Physics 2018-04-09 Yi-Zhong Fan , Wei-Chih Huang , Martin Spinrath , Yue-Lin Sming Tsai , Qiang Yuan

A massive real scalar dark matter particle $S$ can couple to Standard Model leptons or quarks through a vector-like fermionic mediator $\psi$, a scenario known as the Vector-like portal. Due to helicity suppression of the annihilation cross…

High Energy Physics - Phenomenology · Physics 2019-02-07 Stefano Colucci , Federica Giacchino , Michel H. G. Tytgat , Jérôme Vandecasteele

Dark matter (DM) is a new type of invisible matter introduced to explain various features of recent astrophysical observations, including galaxy rotation curves and other fundamental characteristics of our universe. DM may couple to…

High Energy Physics - Experiment · Physics 2025-06-24 Vindhyawasini Prasad

We consider a class of gauged $U(1)$ extensions of the Standard Model (SM), where the light neutrino masses are generated by an inverse seesaw mechanism. In addition to the three right handed neutrinos, we add three singlet fermions and…

High Energy Physics - Phenomenology · Physics 2020-03-25 Arindam Das , Srubabati Goswami , Vishnudath K. N. , Takaaki Nomura