Conveners
Dark Matter
- Gopolang Mohlabeng (University of California, Irvine)
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Edward Walsh03/11/2024, 09:00
Multimessenger observations of white dwarf (WD) mergers may lead to new constraints on the coupling of axion-like particles (ALPs) to photons and electrons. The merger process creates a high energy environment conducive to the production of ALPs while also producing a gravitational wave (GW) signal. After escaping the merger remnant, the ALPs decay into photons, adding to the expected photon...
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Badal Bhalla (University of Oklahoma)03/11/2024, 09:18
The temperature of baryons at the end of the cosmic dark ages can be measured using the 21-cm hyperfine transition of neutral hydrogen. Any energy injection from the dark sector can potentially be constrained through these measurements. Exotic compact objects, such as PBHs, can alter the temperature by transferring heat to the gas through dynamical friction (DF). In this study, we compute the...
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Debopam Goswami (Department of Physics & Astronomy, Texas A&M University)03/11/2024, 09:36
In this work, we investigate the potential of cosmic boosted strongly interacting dark matter (CBSIDM), which opens up the sub-GeV mass range for exploration. The boosted kinetic energy of CBSIDM enhances Earth’s ability to capture DM particles in this range, thereby extending the accessible mass range below 1 GeV and making direct detection signals observable. This also allows CBSIDM to...
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Aaroodd UR03/11/2024, 09:54
Mixing between active and sterile neutrinos represents a fundamental mechanism for sterile neutrino dark matter production in the early Universe. However, the standard Dodelson-Widrow (DW) mechanism is in tension with astrophysical bounds, particularly those arising from structure formation and X-ray observations. To address these challenges, and building on previous works, we introduce...
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Jianrong Tang03/11/2024, 10:12
Mixing between active and sterile neutrinos represents a fundamental mechanism for sterile neutrino dark matter production in the early Universe. However, the standard Dodelson-Widrow (DW) mechanism is in tension with astrophysical bounds, particularly those arising from structure formation and X-ray observations. To address these challenges, and building on previous works, we introduce...
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Writasree Maitra (Department of Physics, Washington University in St. Louis)
The existence of relic neutrino background is a strong prediction of the Big Bang cosmology. But because of their extremely small kinetic energy today, the direct detection of relic neutrinos remains elusive. On the other hand, we know very little about the nature of dark matter. In this work, we propose to probe the cosmic neutrino background by using their resonant scattering with ultra...
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