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Over the past two decades, significant strides have been made in the study of Dark Matter (DM) admixed neutron stars and their associated properties. However, an intriguing facet regarding the effect of DM on magnetized neutron stars still…

High Energy Astrophysical Phenomena · Physics 2023-10-04 Vishal Parmar , H. C. Das , M. K. Sharma , S. K. Patra

We study the neutrino spin oscillations, i.e., neutrino spin precession caused by the neutrino interaction with matter polarized by external magnetic field (or, equivalently, by the interaction of the induced magnetic moment (IMM) of a…

High Energy Physics - Phenomenology · Physics 2019-09-06 A. Grigoriev , E. Kupcheva , A. Ternov

Direct and indirect dark matter detection relies on the scattering of the dark matter candidate on nucleons or nuclei. Here, attention is focused on dark matter candidates (neutralinos) predicted in the minimal supersymmetric standard model…

High Energy Physics - Phenomenology · Physics 2014-11-17 John Ellis , Andrew Ferstl , Keith A. Olive

We quantify our current knowledge of the size and flavor structure of the matter effects in the evolution of neutrinos based solely on the global analysis of oscillation neutrino data. The results are translated in terms of the present…

High Energy Physics - Phenomenology · Physics 2013-10-14 M. C. Gonzalez-Garcia , Michele Maltoni

We explore a new mechanism for reproducing the Dark Matter (DM) abundance: scatterings of one DM particle on light Standard Model particles. Strong bounds on its decays can be satisfied if DM undergoes freeze-in and has a mass around or…

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…

High Energy Physics - Phenomenology · Physics 2021-06-16 Roberto A. Lineros , Mathias Pierre

Recently, a new non-Standard Model neutrino interaction mediated by a light scalar field was proposed, which renders the big-bang relic neutrinos of the cosmic neutrino background a natural dark energy candidate, the so-called Neutrino Dark…

Astrophysics · Physics 2009-11-11 Andreas Ringwald , Lily Schrempp

One of the promising dark matter (DM) candidates is a keV scale sterile neutrino. In the early universe the observed relic of the sterile neutrino DM is generated via the \textit{Dodelson-Widrow} mechanism. However, this production scenario…

High Energy Physics - Phenomenology · Physics 2026-02-16 Debtosh Chowdhury , Md Sariful Islam

We discuss the bounds on the mass of Dark Matter (DM) particles, coming from the analysis of DM phase-space distribution in dwarf spheroidal galaxies (dSphs). After reviewing the existing approaches, we choose two methods to derive such a…

High Energy Physics - Phenomenology · Physics 2009-03-31 Alexey Boyarsky , Oleg Ruchayskiy , Dmytro Iakubovskyi

Couplings between light scalar dark matter (DM) and neutrinos induce a perturbation to the neutrino mass matrix. If the DM oscillation period is smaller than ten minutes (or equivalently, the DM particle is heavier than $0.69\times10^{-17}$…

High Energy Physics - Phenomenology · Physics 2018-04-30 Jiajun Liao , Danny Marfatia , Kerry Whisnant

Due to their extreme density and low temperature, neutron stars (NS) are efficient probes to unveil interactions between standard model and dark matter (DM) particles. From elastic scatterings on NS material, DM can get gravitationally…

High Energy Physics - Phenomenology · Physics 2019-05-28 Raghuveer Garani , Yoann Genolini , Thomas Hambye

Due to the dense environment, neutron stars (NSs) can serve as an ideal laboratory for studying the interactions between dark matter (DM) and ordinary matter. In the process of DM capture, deep inelastic scattering may dominate over elastic…

High Energy Physics - Phenomenology · Physics 2024-09-11 Liangliang Su , Lei Wu , Meiwen Yang

There are profound connections between neutrino physics and nuclear experiments. Exceptionally precise measurements of single and double beta-decay spectra illuminate the scale and nature of neutrino mass and may finally answer the question…

Nuclear Experiment · Physics 2024-01-26 D. S. Parno , A. W. P. Poon , V. Singh

We present the first attempt to analytically study the nonlinear matter power spectrum for a mixed dark matter (cold dark matter plus neutrinos of total mass ~0.1eV) model based on cosmological perturbation theory. The suppression in the…

Astrophysics · Physics 2009-06-23 Shun Saito , Masahiro Takada , Atsushi Taruya

An overview of neutrino electromagnetic properties, which open a door to the new physics beyond the Standard Model, is given. The effects of neutrino electromagnetic interactions both in terrestrial experiments and in astrophysical…

High Energy Physics - Phenomenology · Physics 2016-04-20 Carlo Giunti , Konstantin A. Kouzakov , Yu-Feng Li , Alexey V. Lokhov , Alexander I. Studenikin , Shun Zhou

In this study, we investigate the impacts of dark matter (DM) on the properties of both static and rotating neutron stars utilizing a self-interacting DM model, motivated by the neutron decay anomaly. DM-admixed NSs are modeled by assuming…

High Energy Astrophysical Phenomena · Physics 2025-09-15 Pinku Routaray , Abirbhav Chakrawarty , N. K. Patra , Bharat Kumar

We propose the nucleon consumption induced by dark matter (DM) as a new scenario to overcome the energy threshold of direct detection. It can be realized with proton ($\chi + p \rightarrow \chi + \ell^+$) or neutron ($\chi + n \rightarrow…

High Energy Physics - Phenomenology · Physics 2024-12-20 Shao-Feng Ge , Xiao-Dong Ma

The simplest model that can accomodate a viable nonbaryonic dark matter candidate is the standard electroweak theory with the addition of right-handed or sterile neutrinos. We reexamine this model and find that the sterile neutrinos can be…

High Energy Physics - Phenomenology · Physics 2008-11-26 Scott Dodelson , Lawrence M. Widrow

The constraints on neutrino masses led to the revision of their cosmological role, since the existence of a cosmological neutrino background is a clear prediction of the standard cosmological model. In this paper, we study the impact of…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-22 Fabio Fontanot , Francisco Villaescusa-Navarro , Davide Bianchi , Matteo Viel

Direct detection of light dark matter can be significantly enhanced by up-scattering of dark matter with energetic particles in the cosmic ambient. This boosted dark matter flux can reach kinetic energies up to tens of MeV, while the…

High Energy Physics - Phenomenology · Physics 2025-03-18 Dilip Kumar Ghosh , Tushar Gupta , Matti Heikinheimo , Katri Huitu , Sk Jeesun
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