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High energy neutrinos are produced by the annihilation of dark matter particles in our galaxy. These are presently searched for with large area, deep underground neutrino telescopes. Cold dark matter particles, trapped inside the sun, are…

High Energy Physics - Phenomenology · Physics 2009-09-25 F. Halzen , J. E. Jacobsen

Gamma-ray observations of the Galactic Center (GC) region provide some of the most sensitive measurements of annihilation signals from dark matter in the GeV-TeV mass range. We present the first results from 178 hours of VERITAS…

High Energy Astrophysical Phenomena · Physics 2023-09-25 James L Ryan

If cold dark matter is present at the galactic center, as in current models of the dark halo, it is accreted by the central black hole into a dense spike. Particle dark matter then annihilates strongly inside the spike, making it a compact…

Astrophysics · Physics 2009-10-31 Paolo Gondolo , Joseph Silk

Recently, observations by PAMELA, the Fermi Gamma Ray Space Telescope, and other cosmic ray experiments have generated a great deal of interest in dark matter (DM) particles which annihilate at a high rate to leptons. In this letter, we…

Cosmology and Nongalactic Astrophysics · Physics 2009-06-01 Douglas Spolyar , Matthew Buckley , Katherine Freese , Dan Hooper , Hitoshi Murayama

We argue that the detection of neutrino signature from the Earth's core can effectively probe the coupling of heavy dark matter ($m_{\chi}>10^{4}$ GeV) to nucleons. We first note that direct searches for dark matter (DM) in such a mass…

High Energy Physics - Phenomenology · Physics 2015-03-05 Guey-Lin Lin , Yen-Hsun Lin , Fei-Fan Lee

We argue that the detection of neutrino signature from the Earth core is an ideal approach for probing the coupling of heavy dark matter ($m_{\chi}>10^{4}$ GeV) to nucleons. We first note that direct searches for dark matter (DM) in such a…

High Energy Physics - Phenomenology · Physics 2014-04-03 Guey-Lin Lin , Yen-Hsun Lin

The central region of the dark matter halo of the Milky Way is a promising target for a search for a particle dark matter annihilation signal. The H.E.S.S. Collaboration has published a search for a photon flux originating from dark matter…

High Energy Astrophysical Phenomena · Physics 2013-03-06 Gerrit Spengler , Ullrich Schwanke

The IceCube Neutrino Observatory, which instruments 1$\,$km$^3$ of clear ice at the geographic South Pole, was mainly designed to detect particles with energies in the multi-GeV to PeV range. Due to ice temperatures between $-20^\circ$C to…

High Energy Astrophysical Phenomena · Physics 2019-08-21 Robert Cross , Alexander Fritz , Spencer Griswold

We explore the detectability of the neutrino flux from the entire Galactic Plane or from a part of it with IceCube. We calculate the normalization and the spectral index of the neutrino power law spectrum from different regions of the…

High Energy Astrophysical Phenomena · Physics 2015-06-16 C. Tchernin , J. A. Aguilar , A. Neronov , T. Montaruli

A monochromatic line in the cosmic neutrino spectrum would be a smoking gun signature of dark matter. It is intriguing that the IceCube experiment has recently reported two PeV neutrino events with energies that may be equal up to…

High Energy Physics - Phenomenology · Physics 2013-10-30 Brian Feldstein , Alexander Kusenko , Shigeki Matsumoto , Tsutomu T. Yanagida

IceCube is a cubic-kilometer scale neutrino detector instrumenting a gigaton of ice at the geographic South Pole in Antarctica. On average, 8 track-like high-energy neutrino events with a high probability of being astrophysical are detected…

High Energy Astrophysical Phenomena · Physics 2019-08-15 Martina Karl

Dark matter is one of the main goals of neutrino astronomy. At present, there are two big neutrino telescopes based on the Cherenkov technique in ice and water: IceCube at the South Pole and ANTARES in the northern hemisphere. Both…

High Energy Astrophysical Phenomena · Physics 2013-07-10 Paolo Fermani

In 2013, the IceCube Collaboration reported the first observation of an astrophysical neutrino flux, with energies extending up to the PeV-scale. Over the last decade, this flux has been characterized by measurements in multiple detection…

High Energy Astrophysical Phenomena · Physics 2024-07-24 Minjin Jeong

The detection of non-baryonic dark matter through its gamma-ray annihilation in the centre of our galaxy has been studied. The gamma fluxes according to different models have been simulated and compared to those expected to be observed with…

We study in detail the ability of the nominal configuration of the IceCube neutrino telescope (with 80 strings) to probe the parameter space of the Constrained MSSM (CMSSM) favoured by current collider and cosmological data. Adopting…

High Energy Astrophysical Phenomena · Physics 2009-09-28 R. Trotta , R. Ruiz de Austri , C. Pérez de los Heros

Superheavy dark matter may show its presence in high energy neutrino signals detected on earth. From the latest results of IceCube, we could set the strongest lower bound on the lifetime of dark matter beyond 100 TeV around $10^{28} {\rm…

High Energy Physics - Phenomenology · Physics 2015-07-28 Carsten Rott , Kazunori Kohri , Seong Chan Park

We consider the nuclear absorption of dark matter as an alternative to the typical indirect detection search channels of dark matter decay or annihilation. In this scenario, an atomic nucleus transitions to an excited state by absorbing a…

High Energy Physics - Phenomenology · Physics 2025-03-20 Kimberly K. Boddy , Bhaskar Dutta , Addy J. Evans , Wei-Chih Huang , Stacie Moltner , Louis E. Strigari

Current strategies of indirect Dark Matter detection with neutrino telescopes are based on the search for high-energy neutrinos from the Solar core or from the center of the Earth. Here, we propose a new strategy based on the detection of…

Astrophysics · Physics 2009-11-11 Gianfranco Bertone

The decay of superheavy dark matter from the early universe may undergo decay via QCD cascades and electroweak cascade to produce neutrinos as one of the decay products. We consider the neutrino events in and around PeV region reported by…

High Energy Physics - Phenomenology · Physics 2025-05-29 Diptarko Mukherjee , Ashadul Halder , Debasish Majumdar , Abhijit Bandyopadhyay
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