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Neutron stars offer powerful astrophysical laboratories to probe the properties of dark matter. Gradual accumulation of heavy, non-annihilating dark matter in neutron stars can lead to the formation of comparable-mass black holes, and…

High Energy Physics - Phenomenology · Physics 2025-04-23 Anupam Ray

We show that the high-energy cosmic neutrinos seen by the IceCube Neutrino Observatory can be used to probe interactions between neutrinos and the dark sector that cannot be reached by current cosmological methods. The origin of the…

High Energy Physics - Phenomenology · Physics 2021-03-09 Carlos A. Argüelles , Ali Kheirandish , Aaron C. Vincent

Neutrinos might interact among themselves through forces that have so far remained hidden. Throughout the history of the Universe, such \emph{secret} interactions could lead to scatterings between the neutrinos from supernova explosions and…

High Energy Physics - Phenomenology · Physics 2023-01-11 Anirban Das , Yuber F. Perez-Gonzalez , Manibrata Sen

Sub-GeV neutrinos produced in a stellar core may emerge from main sequence stars, white dwarfs and brown dwarfs producing possible observable signals of dark matter capture. A distribution of these stars near the Milky Way galactic center…

High Energy Physics - Phenomenology · Physics 2025-05-13 Debajit Bose , Rohan Pramanick , Tirtha Sankar Ray

We derive new constraints on combination of dark matter - electron cross-section ($\sigma_{\chi e}$) and dark matter - neutrino cross-section ($\sigma_{\chi \nu}$) utilising the gain in kinetic energy of the dark matter (DM) particles due…

High Energy Physics - Phenomenology · Physics 2022-05-30 Diptimoy Ghosh , Atanu Guha , Divya Sachdeva

The majority of the matter in the universe is still unidentified and under investigation by both direct and indirect means. Many experiments searching for the recoil of dark-matter particles off target nuclei in underground laboratories…

High Energy Physics - Phenomenology · Physics 2015-10-28 Michael Klasen , Martin Pohl , Günter Sigl

We develop a simulation within GENIE of the excitation of baryonic resonances by boosted dark matter. This work completes the simulation of all scattering modes for dark matter entering a detector at relativistic speeds. At some boosts,…

High Energy Physics - Phenomenology · Physics 2025-10-31 Joshua Berger , Zach Orr

High-intensity neutrino beam facilities may produce a beam of light dark matter when protons strike the target. Searches for such a dark matter beam using its scattering in a nearby detector must overcome the large neutrino background. We…

High Energy Physics - Phenomenology · Physics 2016-05-04 Pilar Coloma , Bogdan A. Dobrescu , Claudia Frugiuele , Roni Harnik

The recently reported excess in XENON1T is explained by new leptonic forces, which are free from gauge anomalies. We focus on two scenarios with and without dark matter. In Scenario #1, the gauge boson of gauged lepton number…

High Energy Physics - Phenomenology · Physics 2020-10-21 Yongsoo Jho , Jong-Chul Park , Seong Chan Park , Po-Yan Tseng

Dark matter direct detection experiments impose the strong bounds on thermal dark matter scenarios. The bound can naturally be evaded if the cross section is momentum transfer or velocity dependent. One can test such thermal dark matter…

High Energy Physics - Phenomenology · Physics 2024-02-23 Mayumi Aoki , Takashi Toma

In many cosmologies dark matter clusters on sub-kiloparsec scales and forms compact subhalos, in which the majority of Galactic dark matter could reside. Null results in direct detection experiments since their advent four decades ago could…

High Energy Physics - Phenomenology · Physics 2022-06-22 Joseph Bramante , Bradley J. Kavanagh , Nirmal Raj

We consider the boosted dark matter solution of the XENON1T excess to constrain the framework through loop-generated processes. The interaction of the boosted dark matter component, which sources the signal, effectively couples the cold…

High Energy Physics - Phenomenology · Physics 2021-03-03 Luigi Delle Rose , Gert Hütsi , Carlo Marzo , Luca Marzola

Astronomical observations from small galaxies to the largest scales in the universe can be consistently explained by the simple idea of dark matter. The nature of dark matter is however still unknown. Empirically it cannot be any of the…

Nuclear Experiment · Physics 2013-11-26 Paolo Gondolo

Extremely high energy (up to 10**(22) eV) cosmic neutrino beams initiate high energy particle cascades in the background of relic neutrinos from the Big Bang. We perform numerical calculations to show that such cascades could contribute…

High Energy Physics - Phenomenology · Physics 2009-10-31 Shigeru Yoshida , Guenter Sigl , Sangjin Lee

The future detection and measurement of the diffuse neutrino supernova background will shed light on the rate of supernovae events in the Universe, the star formation rate and the neutrino spectrum from each supernova. Little has been said…

Cosmology and Nongalactic Astrophysics · Physics 2018-05-09 J. Barranco , Argelia Bernal , D. Delepine

Large-volume neutrino experiments are ideal for testing boosted dark matter (BDM) scenarios. We propose, for the first time, an approach to utilize knockout neutrons by detecting de-excitation $\gamma$ rays and coincident captured neutrons…

High Energy Physics - Phenomenology · Physics 2024-09-10 Koun Choi , Jong-Chul Park

The existence of a cosmic neutrino background -- the analogue of the cosmic microwave background -- is a fundamental prediction of standard big bang cosmology. Up to now, the observational evidence for its existence is rather indirect and…

Cosmology and Nongalactic Astrophysics · Physics 2010-04-21 Andreas Ringwald

We show that dark matter with a per-nucleon scattering cross section $\gtrsim 10^{-28}~{\rm cm^2}$ could be discovered by liquid scintillator neutrino detectors like BOREXINO, SNO+, and JUNO. Due to the large dark matter fluxes admitted,…

High Energy Physics - Phenomenology · Physics 2019-04-24 Joseph Bramante , Benjamin Broerman , Jason Kumar , Rafael F. Lang , Maxim Pospelov , Nirmal Raj

The direct detection of Dark Matter particles with mass below the GeV-scale is hampered by soft nuclear recoil energies and finite detector thresholds. For a given maximum relative velocity, the kinematics of elastic Dark Matter nucleus…

High Energy Physics - Phenomenology · Physics 2017-01-25 Chris Kouvaris , Josef Pradler

Strongly-interacting dark matter can be accumulated in large quantities inside the Earth, and for dark matter particles in a few GeV mass range, it can exist in large quantities near the Earth's surface. We investigate the constraints…

High Energy Physics - Phenomenology · Physics 2024-07-09 Yohei Ema , Maxim Pospelov , Anupam Ray
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