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If dark matter is composed of new particles, these may become captured after scattering with nuclei in the Sun, thermalise through additional scattering, and finally annihilate into neutrinos that can be detected on Earth. If dark matter…

High Energy Physics - Phenomenology · Physics 2019-05-09 Mattias Blennow , Stefan Clementz , Juan Herrero-Garcia

Dwarf irregular galaxies (dIrrs), as rotationally-supported systems, have more reliable J-factor measurements than dwarf spheroidal galaxies and have received attention as targets for dark matter detection in recent years. In this paper, we…

High Energy Astrophysical Phenomena · Physics 2024-01-15 Yi-Fei Lü , Ben-Yang Zhu , Rong-Lan Li , Xue-Kang Guo , Tian-Ci Liu , Yong-Bo Huang , Yun-Feng Liang

We determine the future sensitivity of the TRIDENT neutrino telescope to dark matter annihilation in the Galactic Centre. By applying the full detector design we show that TRIDENT will probe annihilation rates down to $\langle\sigma…

High Energy Physics - Phenomenology · Physics 2026-01-14 Yingwei Wang , Xinhui Chu , Andrew Cheek , Iwan Morton-Blake , Qichao Chang , Gwenael Giacinti , Samy Kaci , Xin Xiang , Donglian Xu , Fuyudi Zhang

We interpret recent IceCube results on searches for dark matter accumulated in the sun in terms of the lightest Kaluza-Klein excitation (assumed here to be the Kaluza-Klein photon, $B^1$), obtaining improved limits on the annihilation rate…

High Energy Astrophysical Phenomena · Physics 2020-02-18 M. Colom i Bernadich , C. Pérez de los Heros

We explore the possibility that the high energy neutrino flux observed by terrestrial telescopes originates from dark matter (DM) annihilation. Specifically, we study a minimal, UV-complete $U(1)$ extension of the Standard Model with a…

High Energy Physics - Phenomenology · Physics 2025-09-10 Arindam Basu , Basabendu Barman , Arindam Das

Motivated by the indications of a possible deficit of muon tracks in the first three-year equivalent dataset of IceCube we investigate the possibility that the astrophysical (anti)neutrino flux (in the PeV energy range) could originate from…

High Energy Astrophysical Phenomena · Physics 2015-06-23 Luis A. Anchordoqui

The decay of asymmetric dark matter (ADM) can lead to distinct neutrino signatures characterized by an asymmetry between neutrinos and antineutrinos. In the high-energy regime, the Glashow resonant interaction $\bar{\nu}_{e} + e^{-}…

High Energy Physics - Phenomenology · Physics 2025-07-04 Qinrui Liu , Ningqiang Song , Aaron C. Vincent

If dark matter (DM) carries anti-baryon number, a DM particle may annihilate with a nucleon by flipping to anti-DM. Inspired by Hylogenesis models, we introduce a single component DM model where DM is asymmetric and carries B and L as -1/2.…

High Energy Physics - Phenomenology · Physics 2014-02-26 Junwu Huang , Yue Zhao

We explore the possibility of distinguishing neutrino mass hierarchies through the neutrino signal from dark matter annihilation at neutrino telescopes. We consider a simple extension of the standard model where the neutrino masses and…

High Energy Physics - Phenomenology · Physics 2015-12-09 Rouzbeh Allahverdi , Bhaskar Dutta , Dilip Kumar Ghosh , Bradley Knockel , Ipsita Saha

Recent results from the PAMELA experiment indicate an excess in the positron spectrum above 10 GeV, but anti-proton data are consistent with the expected astrophysical backgrounds. We propose a scenario that reproduces these features. Dark…

High Energy Physics - Phenomenology · Physics 2009-09-24 Daniel J. Phalen , Aaron Pierce , Neal Weiner

Indirect detection experiments typically measure the flux of annihilating dark matter (DM) particles propagating freely through galactic halos. We consider a new scenario where celestial bodies "focus" DM annihilation events, increasing the…

High Energy Astrophysical Phenomena · Physics 2021-05-05 Rebecca K. Leane , Tim Linden , Payel Mukhopadhyay , Natalia Toro

Current and most upcoming neutrino detectors can only reach a dark matter annihilation cross section to neutrinos larger than the standard freeze-out value, but they open intriguing detection avenues for non-standard dark matter paradigms.…

High Energy Physics - Phenomenology · Physics 2025-08-06 Shinya Kanemura , Shao-Ping Li , Dibyendu Nanda

The Galactic diffuse emission (GDE) is formed when cosmic rays leave the sources where they were accelerated, diffusively propagate in the Galactic magnetic field, and interact with the interstellar medium and interstellar radiation field.…

High Energy Astrophysical Phenomena · Physics 2023-11-28 Ke Fang , John S. Gallagher , Francis Halzen

Recent Super-Kamiokande analyses of the diffuse supernova neutrino background, based on data across all SK phases, indicate a mild preference over the zero-DSNB hypothesis at the level of about $2.3\sigma$ with electron-like antineutrino…

High Energy Physics - Phenomenology · Physics 2026-05-28 Motoi Endo , Yushi Mura , Tenta Tsuji

Astrophysical neutrinos travel long distances from their sources to the Earth traversing dark matter halos of clusters of galaxies and that of our own Milky Way. The interaction of neutrinos with dark matter may affect the flux of…

Cosmology and Nongalactic Astrophysics · Physics 2019-05-08 Ki-Young Choi , Jongkuk Kim , Carsten Rott

Clear methods to differentiate between decaying and annihilating dark matter (DM) scenarios are still by and large unavailable. In this note, we study the potential astrophysical signatures of a new class of hidden sector decaying DM…

High Energy Physics - Phenomenology · Physics 2009-08-11 Joshua T. Ruderman , Tomer Volansky

Recent theoretical work has explored dark matter accumulation in the Earth and its drift towards the center of the Earth that, for the current age of the Earth, does not necessarily result in a concentration of dark matter ($\chi$) in the…

Understanding cosmic acceleration mechanisms, such as jet formation in black holes, star collapses or binary mergers, and the propagation of accelerated particles in the universe is still a `work in progress' and requires a multi-messenger…

High Energy Astrophysical Phenomena · Physics 2019-08-21 Teresa Montaruli

New particles in theories beyond the standard model can manifest as stable relics that interact strongly with visible matter and make up a small fraction of the total dark matter abundance. Such particles represent an interesting physics…

High Energy Physics - Phenomenology · Physics 2023-07-10 David McKeen , David E. Morrissey , Maxim Pospelov , Harikrishnan Ramani , Anupam Ray

The IceCube Neutrino Observatory is a Cherenkov detector located at the South Pole. Its main component consists of an in-ice array of optical modules instrumenting one cubic kilometer of deep Glacial ice. The DeepCore sub-detector is a…

High Energy Astrophysical Phenomena · Physics 2023-06-29 Shiqi Yu