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Weakly Interacting Massive Particles (WIMPs), which are among the best motivated dark matter (DM) candidates, could make up all or only a fraction of the total DM budget. We consider a scenario in which WIMPs are a sub-dominant DM…

Cosmology and Nongalactic Astrophysics · Physics 2017-03-01 Sebastian Baum , Luca Visinelli , Katherine Freese , Patrick Stengel

As is well known, dark matter direct detection experiments will ultimately be limited by a "neutrino floor," due to the scattering of nuclei by MeV neutrinos from, e.g., nuclear fusion in the Sun. Here we point out the existence of a new…

High Energy Astrophysical Phenomena · Physics 2017-11-16 Kenny C. Y. Ng , John F. Beacom , Annika H. G. Peter , Carsten Rott

The recent observation of the blazar TXS 0506+056 suggests the presence of a hard power-law component in the extraterrestrial TeV-PeV neutrino flux, in agreement with the IceCube analysis on the 8-year through-going muon neutrinos from the…

High Energy Physics - Phenomenology · Physics 2018-12-19 Marco Chianese , Gennaro Miele , Stefano Morisi , Eduardo Peinado

Superheavy ($M>10^{10}$ GeV) particles produced during inflation may be the dark matter, independent of their interaction strength. Strongly interacting superheavy particles will be captured by the sun, and their annihilation in the center…

High Energy Physics - Phenomenology · Physics 2009-10-31 Ivone F. M. Albuquerque , Lam Hui , Edward W. Kolb

Neutrinos are often considered as a portal to new physics beyond the Standard Model (SM) and might possess phenomenologically interesting interactions with dark matter (DM). This paper examines the cosmological imprints of DM that interacts…

High Energy Physics - Phenomenology · Physics 2024-03-19 Isaac R. Wang , Xun-Jie Xu

We investigate the prospects for indirect detection of fermion WIMPless dark matter at the neutrino telescopes IceCube and DeepCore. The dark matter annihilating in the Sun is a hidden sector Majorana fermion that couples through Yukawa…

High Energy Physics - Phenomenology · Physics 2010-07-12 Vernon Barger , Jason Kumar , Danny Marfatia , Enrico Maria Sessolo

The recent IceCube publication claims the observation of cosmic neutrinos with energies down to $\sim 10$ TeV, reinforcing the growing evidence that the neutrino flux in the 10-100 TeV range is unexpectedly large. Any conceivable source of…

High Energy Physics - Phenomenology · Physics 2020-05-20 Antonio Capanema , Arman Esmaili , Kohta Murase

We provide ingredients and recipes for computing neutrino signals of TeV-scale Dark Matter annihilations in the Sun. For each annihilation channel and DM mass we present the energy spectra of neutrinos at production, including:…

High Energy Physics - Phenomenology · Physics 2015-06-18 Pietro Baratella , Marco Cirelli , Andi Hektor , Joosep Pata , Morten Piibeleht , Alessandro Strumia

After scattering off nuclei in the Sun, dark matter particles can be gravitationally captured by the Sun, accumulate in the Sun's core and annihilate into Standard Model particles. Neutrinos originating from these annihilations can be…

High Energy Physics - Experiment · Physics 2021-08-12 Lilly Peters , Koun Choi , Mehr Un Nisa

Recent observations by IceCube, notably two PeV cascades accompanied by events at energies ~ (30-400) TeV, are clearly in excess over atmospheric background fluxes and beg for an astroparticle physics explanation. Although some models of…

High Energy Physics - Phenomenology · Physics 2013-12-03 Arman Esmaili , Pasquale Dario Serpico

We study indirect detection signals from solar annihilation of dark matter (DM) particles into light right-handed (RH) neutrinos with a mass in a $1-5$ GeV range. These RH neutrinos can have a sufficiently long lifetime to allow them to…

High Energy Physics - Phenomenology · Physics 2017-04-12 Rouzbeh Allahverdi , Yu Gao , Bradley Knockel , Shashank Shalgar

Light dark-matter ($M\leq20$ MeV) particles freeze out after neutrino decoupling. If the dark-matter particle couples to a neutrino or an electromagnetic plasma, the late time entropy production from dark-matter annihilation can change the…

High Energy Astrophysical Phenomena · Physics 2016-03-14 Jae Ho Heo , C. S. Kim

The high energy events observed at the IceCube Neutrino Observatory have triggered many investigations interpreting the highly energetic neutrinos detected as decay products of heavy unstable Dark Matter particles. However, while very…

High Energy Physics - Phenomenology · Physics 2017-04-12 Marco Chianese , Alexander Merle

We discuss the neutrino constraints from solar and terrestrial dark matter (DM) annihilations in the inelastic dark matter (iDM) scenario after the recent CDMS II results. To reconcile the DAMA/LIBRA data with constraints from all other…

High Energy Physics - Phenomenology · Physics 2014-11-20 Jing Shu , Peng-fei Yin , Shou-hua Zhu

In supersymmetric unified theories the dark matter particle can decay, just like the proton, through grand unified interactions with a lifetime of order of 10^{26} sec. Its decay products can be detected by several experiments -- including…

High Energy Physics - Phenomenology · Physics 2009-09-24 Asimina Arvanitaki , Savas Dimopoulos , Sergei Dubovsky , Peter W. Graham , Roni Harnik , Surjeet Rajendran

Sterile neutrinos offer a minimal and testable explanation for dark matter (DM), with their radiative decay actively searched for in X-ray observations. We show that cold sterile neutrino DM can be efficiently produced during reheating from…

High Energy Physics - Phenomenology · Physics 2026-01-08 James M. Cline , Yong Xu

We revisit the prospects for IceCube and similar kilometer-scale telescopes to detect neutrinos produced by the annihilation of weakly interacting massive dark matter particles (WIMPs) in the Sun. We emphasize that the astrophysics of the…

High Energy Astrophysical Phenomena · Physics 2010-04-15 Francis Halzen , Dan Hooper

We study the possibility of detecting dark matter directly via a small but energetic component that is allowed within present-day constraints. Drawing closely upon the fact that neutral current neutrino nucleon interactions are…

High Energy Physics - Phenomenology · Physics 2015-03-17 Atri Bhattacharya , Raj Gandhi , Aritra Gupta

We investigate different neutrino signals from the decay of dark matter particles to determine the prospects for their detection, and more specifically if any spectral signature can be disentangled from the background in present and future…

High Energy Physics - Phenomenology · Physics 2010-04-23 Laura Covi , Michael Grefe , Alejandro Ibarra , David Tran

The IceCube Upgrade will provide unprecedented sensitivity to dark matter particles annihilating in the core of the Sun. For dark matter candidates with spin-dependent couplings to nuclei and that annihilate significantly to tau leptons or…

High Energy Physics - Phenomenology · Physics 2025-08-20 Dan Hooper , Fabrizio Vassallo