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We consider a hidden sector model of dark matter which is charged under a hidden U(1)_X gauge symmetry. Kinetic mixing of U(1)_X with the Standard Model hypercharge U(1)_Y is allowed to provide communication between the hidden sector and…

High Energy Physics - Phenomenology · Physics 2011-03-18 Eung Jin Chun , Jong-Chul Park , Stefano Scopel

I suggest a new extension of the standard model of particle physics, which introduces a dark sector with the $SU(2)_{D}\otimes U(1)_{D'}$ symmetry besides the SM sector. The new particles of the model all inhabit in the dark sector. The…

High Energy Physics - Phenomenology · Physics 2019-06-26 Wei-Min Yang

The Inverse Seesaw naturally explains the smallness of neutrino masses via an approximate $B-L$ symmetry broken only by a correspondingly small parameter. In this work the possible dynamical generation of the Inverse Seesaw neutrino mass…

High Energy Physics - Phenomenology · Physics 2017-12-06 Valentina De Romeri , Enrique Fernandez-Martinez , Julia Gehrlein , Pedro A. N. Machado , Viviana Niro

We consider a U(1)' gauge symmetry acting on three generations of right-handed neutrinos. The U(1)' symmetry is broken at the TeV scale and its remnant discrete symmetry makes one of the right-handed neutrinos stable. As a natural…

High Energy Physics - Phenomenology · Physics 2014-01-29 Manfred Lindner , Daniel Schmidt , Atsushi Watanabe

Recently it was shown that dark matter with mass of order the weak scale can be charged under a new long-range force, decoupled from the Standard Model, with only weak constraints from early Universe cosmology. Here we consider the…

Cosmology and Nongalactic Astrophysics · Physics 2017-08-30 Prateek Agrawal , Francis-Yan Cyr-Racine , Lisa Randall , Jakub Scholtz

We provide a simple UV theory for a Dirac dark matter with a massless Abelian gauge boson. We introduce a single fermion transforming as the $\bf{16}$ representation in the SO(10)$'$ gauge group, which is assumed to be spontaneously broken…

High Energy Physics - Phenomenology · Physics 2020-07-22 Ayuki Kamada , Masaki Yamada , Tsutomu T. Yanagida

We discuss the possibility of exploring an unbroken U(1) gauge interaction in the dark sector by means of gravitational waves. Dark sector states charged under the dark force can give a macroscopic charge to astronomical bodies. Yet the…

High Energy Physics - Phenomenology · Physics 2020-06-17 Marco Fabbrichesi , Alfredo Urbano

We show that a scalar and a fermion charged under a global U(1) symmetry can not only explain the existence and abundance of dark matter (DM) and dark radiation (DR), but also imbue DM with improved scattering properties at galactic scales,…

High Energy Physics - Phenomenology · Physics 2014-10-21 Xiaoyong Chu , Basudeb Dasgupta

The pervasive presence in space of a flux of high-speed, electrically uncharged dark matter particles is examined here for potential consequences. Dark matter interactions with ordinary matter are considered, and a model of the dark matter…

General Physics · Physics 2009-08-25 C. L. Herzenberg

We examine spontaneous symmetry breaking of a renormalisable U(1) x U(1) gauge theory coupled to fermions when kinetic mixing is present. We do not assume that the kinetic mixing parameter is small. A rotation plus scaling is used to remove…

High Energy Physics - Phenomenology · Physics 2014-09-09 Biswajoy Brahmachari , Amitava Raychaudhuri

We study a two-component dark matter model consisting of a Dirac fermion and a complex scalar charged under new U(1) gauge group in the hidden sector. The dark fermion plays the dominant component of dark matter which explains the measured…

High Energy Physics - Phenomenology · Physics 2022-09-20 Yeong Gyun Kim , Kang Young Lee , Soo-hyeon Nam

We propose that all light fermionic degrees of freedom, including the Standard Model (SM) fermions and all possible light beyond-the-standard-model fields, are chiral with respect to some spontaneously broken abelian gauge symmetry.…

High Energy Physics - Phenomenology · Physics 2015-07-06 André de Gouvea , Daniel Hernandez

We investigate fermionic dark matter interactions with standard model particles from an additional $\mathrm{U}(1)_\mathrm{X}$ gauge symmetry, assuming kinetic mixing between the $\mathrm{U}(1)_\mathrm{X}$ and $\mathrm{U}(1)_\mathrm{Y}$…

High Energy Physics - Phenomenology · Physics 2023-09-06 Lianyou Shan , Zhao-Huan Yu

The dark photon is a new gauge boson whose existence has been conjectured. It is dark because it arises from a symmetry of a hypothetical dark sector comprising particles completely neutral under the Standard Model interactions. Dark though…

High Energy Physics - Phenomenology · Physics 2021-03-02 Marco Fabbrichesi , Emidio Gabrielli , Gaia Lanfranchi

In this review of Dark Matter we review dark matter as sterile neutrinos, fermions, with their present and possibly future detection via neutrino Oscillations. We review the creation of Dark Matter via interactions with the Dark Energy…

General Physics · Physics 2020-01-10 Leonard S. Kisslinger , Debasish Das

We consider current observational constraints on the electromagnetic charge of dark matter. The velocity dependence of the scattering cross-section through the photon gives rise to qualitatively different constraints than standard dark…

High Energy Physics - Phenomenology · Physics 2011-03-22 Samuel D. McDermott , Hai-Bo Yu , Kathryn M. Zurek

Assuming fundamental fermions possess a new Abelian gauge charge that depends on flavors of both quark and lepton, we obtain a simple extension of the Standard Model, which reveals some new physics insights. The new gauge charge anomaly…

High Energy Physics - Phenomenology · Physics 2025-02-04 Duong Van Loi , N. T. Duy , Cao H. Nam , Phung Van Dong

We study a novel type of extensions of the Standard Model which include a hard mass term for the U(1) gauge field and, optionally, the additional scalar multiplets spontaneously violating the electric charge conservation. Contrary to the…

High Energy Physics - Phenomenology · Physics 2009-10-28 A. Yu. Ignatiev , G. C. Joshi

In this work, we examine in detail the difference between constraining the electric charge fraction and isospin fraction when calculating the deconfinement phase transition in the presence of net strangeness. We present relations among…

Nuclear Theory · Physics 2020-12-30 V. Dexheimer , K. Aryal , C. Constantinou , J. Peterson

A field theory is proposed where the regular fermionic matter and the dark fermionic matter are different states of the same "primordial" fermion fields. In regime of the fermion densities typical for normal particle physics, each of the…

General Relativity and Quantum Cosmology · Physics 2009-11-10 E. I. Guendelman , A. B. Kaganovich