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The annihilation of dark matter (DM) particles accumulated in the Sun could produce a flux of neutrinos, which is potentially detectable with neutrino detectors/telescopes and the DM elastic scattering cross section can be constrained.…

High Energy Physics - Phenomenology · Physics 2017-05-16 Raghuveer Garani , Sergio Palomares-Ruiz

We compute the capture rate for Dark Matter in the Sun for models where the dominant interaction with nuclei is inelastic -- the Dark Matter up-scatters to a nearby dark "partner" state with a small splitting of order a 100 keV. Such models…

High Energy Physics - Phenomenology · Physics 2014-11-18 Arjun Menon , Rob Morris , Aaron Pierce , Neal Weiner

The capture of dark matter, and its subsequent annihilation, can heat old, isolated neutron stars. In order for kinetic heating to be achieved, the captured dark matter must undergo sufficient scattering to deposit its kinetic energy in the…

High Energy Physics - Phenomenology · Physics 2024-04-05 Nicole F. Bell , Giorgio Busoni , Sandra Robles , Michael Virgato

We study the solar capture rate of inelastic dark matter with endothermic and/or exothermic interactions. By assuming that an inelastic dark matter signal will be observed in next generation direct detection experiments we can set a lower…

High Energy Physics - Phenomenology · Physics 2016-04-20 Mattias Blennow , Stefan Clementz , Juan Herrero-Garcia

A promising probe to unmask particle dark matter is to observe its effect on neutron stars, the prospects of which depend critically on whether captured dark matter thermalizes in a timely manner with the stellar core via repeated…

High Energy Physics - Phenomenology · Physics 2021-03-03 Raghuveer Garani , Aritra Gupta , Nirmal Raj

Dark matter can be captured by celestial objects and accumulate at their centers, forming a core of dark matter that can collapse to a small black hole, provided that the annihilation rate is small or zero. If the nascent black hole is big…

High Energy Physics - Phenomenology · Physics 2021-05-13 Javier F. Acevedo , Joseph Bramante , Alan Goodman , Joachim Kopp , Toby Opferkuch

Neutron stars can provide new insight into dark matter properties, as these dense objects capture dark matter particles very efficiently. It has recently been shown that the energy transfer in the dark matter capture process can lead to…

High Energy Physics - Phenomenology · Physics 2018-09-13 Nicole F. Bell , Giorgio Busoni , Sandra Robles

We consider the capture of dark matter in the Sun by inelastic scattering against nuclei as in the inelastic dark matter scenario. We show that, assuming a WIMP-nucleon cross-section of \sigma_n = 10^{-40}\cm^2 the resulting capture rate…

High Energy Physics - Phenomenology · Physics 2009-09-28 Shmuel Nussinov , Lian-Tao Wang , Itay Yavin

The extreme conditions in Neutron Stars make them ideal test facilities for fundamental interactions. A Neutron Star can capture Dark Matter via scattering. As a result of the scattering, Dark Matter kinetic energy is transferred to the…

High Energy Physics - Phenomenology · Physics 2022-09-21 Giorgio Busoni

Neutron stars provide a cosmic laboratory to study the nature of dark matter particles and their interactions. Dark matter can be captured by neutron stars via scattering, where kinetic energy is transferred to the star. This can have a…

High Energy Physics - Phenomenology · Physics 2020-09-17 Nicole F. Bell , Giorgio Busoni , Sandra Robles , Michael Virgato

Dark matter in the form of weakly interacting massive particles is predicted to become gravitationally captured and accumulate in stars. While the subsequent annihilations of such particles lead to the injection of energy into stellar…

High Energy Physics - Phenomenology · Physics 2014-11-20 Dan Hooper , Douglas Spolyar , Alberto Vallinotto , Nickolay Y. Gnedin

Dark matter may be discovered through its capture in stars and subsequent annihilation. It is usually assumed that dark matter is captured after a single scattering event in the star, however this assumption breaks down for heavy dark…

High Energy Physics - Phenomenology · Physics 2020-06-22 Joseph Bramante , Antonio Delgado , Adam Martin

Dark matter particles can be captured by the sun with rates that depend on the dark matter mass and the DM-nucleon cross section. However, for masses below $\sim 3.3$ GeV, the captured dark matter particles evaporate, leading to an…

High Energy Physics - Phenomenology · Physics 2015-10-07 Chris Kouvaris

Celestial capture of dark matter provides a useful handle for constraining its particulate properties. The capture formalism is sensitive to the phase space distribution of dark matter in the vicinity of the celestial object. This article…

Cosmology and Nongalactic Astrophysics · Physics 2023-03-21 Debajit Bose , Sambo Sarkar

Dark matter could be captured in the Sun and self-annihilate, giving rise to an observable neutrino flux. Indirect searches for dark matter looking for this signal with neutrino telescopes have resulted in tight constraints on the…

High Energy Astrophysical Phenomena · Physics 2014-06-03 Koun Choi , Carsten Rott , Yoshitaka Itow

A potential flux of high-energy neutrinos from the annihilation of dark matter particles trapped within the Sun has been exploited to place indirect limits on particle dark matter. In most models, the dark matter interacts weakly, but the…

High Energy Astrophysical Phenomena · Physics 2009-11-06 Andrew R. Zentner

Dark matter (DM) can be captured in celestial bodies after scattering and losing sufficient energy to become gravitationally bound. We derive a general framework that describes the current DM distribution inside celestial objects, which…

High Energy Physics - Phenomenology · Physics 2023-06-19 Rebecca K. Leane , Juri Smirnov

Dark matter with momentum- or velocity-dependent interactions with nuclei has shown significant promise for explaining the so-called Solar Abundance Problem, a longstanding discrepancy between solar spectroscopy and helioseismology. The…

High Energy Physics - Phenomenology · Physics 2017-10-25 Giorgio Busoni , Andrea De Simone , Pat Scott , Aaron C. Vincent

Dark matter can capture in neutron stars and heat them to observable luminosities. We study relativistic scattering of dark matter on highly degenerate electrons. We develop a Lorentz invariant formalism to calculate the capture probability…

High Energy Physics - Phenomenology · Physics 2020-09-09 Aniket Joglekar , Nirmal Raj , Philip Tanedo , Hai-Bo Yu

Among the different strategies aiming to detect WIMP dark matter (DM), a neutrino signal coming from the Sun would be a smoking gun. This possibility relies on the DM capture by the Sun driven by the local DM distribution assumptions: the…

Astrophysics of Galaxies · Physics 2019-12-18 A. Nuñez-Castiñeyra , E. Nezri , V. Bertin
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