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EFT Approaches to Sommerfeld Enhancement and Bound States in Singular Potentials
Arindam Bhattacharya, Rashmish K. Mishra, Tracy R. Slatyer
The Sommerfeld enhancement (SE) from long-range interactions, and the related bound state formation rate, can be important non-perturbative inputs to dark matter (DM) annihilation…
Confronting the Higgsino Interpretation of the LZ Event with the High-Energy Sideband
Nicholas L. Rodd, Benjamin R. Safdi, Tracy R. Slatyer +1
The LZ experiment has reported a single 248 keV nuclear recoil event in their ton-yr exposure on a xenon target. The absence of lower nuclear recoil events is naturally expl…
On the equivalence of unitarization prescriptions for the Sommerfeld enhancement
Barry E. Cimring, Tracy R. Slatyer
The annihilation of self-interacting dark matter with long-range interactions can be significantly enhanced at low velocities through the Sommerfeld effect. At special points in pa…
Testing Viability of Benchmark Dark Matter Models for the Galactic Center Excess
Yongao Hu, Cari Cesarotti, Tracy R. Slatyer
We examine the status of benchmark simplified dark matter models that have been proposed to explain the GeV gamma-ray Galactic Center excess. We constrain the available parameter s…
Testing Real WIMPs with CTAO
Matthew Baumgart, Salvatore Bottaro, Diego Redigolo +2
We forecast the reach of the upcoming Cherenkov Telescope Array Observatory (CTAO) to the full set of real representations within the paradigm of minimal dark matter. We employ eff…
Searching for GeV Gamma-Ray Polarization and Axion-Like Particles with AMS-02
Xiuyuan Zhang, Yi Jia, Tracy R. Slatyer
We study the detectability of GeV-band gamma-ray polarization with the AMS-02 experiment and its proposed successor AMS-100, from Galactic and extragalactic sources. Characterizing…