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Aug 26 – 30, 2024
University of Chicago
America/Chicago timezone

Indirect Searches for Ultraheavy Dark Matter in the Time Domain

Aug 28, 2024, 2:45 PM
15m
201 (MCP)

201

MCP

Speaker

Xuheng Luo (Johns Hopkins University)

Description

Dark matter may exist today in the form of ultraheavy composite bound states. Collisions between such dark matter bound states may release intense bursts of radiation that include gamma rays among the final products appearing as gamma ray transients. Given their $\textit{a priori}$ unknown durations and occurrence rates, such bursts may have been missed not necessarily because of their low arriving gamma-ray fluxes, but rather their briefness and rareness. In this talk, I will discuss the strategies and prospects for discovering those intense bursts whose non-detection thus far is due to the latter. In particular, if these bursts originate from collisions of dark matter bound states, imaging atmospheric Cherenkov telescopes (IACTs) and Pulsed All-Sky Near-infrared and Optical Search for Extra-Terrestrial Intelligence (PANOSETI) can probe a large dark matter parameter space beyond existing limits. I will also present a concrete dark matter model that produces bursts potentially detectable in these instruments.

Primary authors

Prof. David Kaplan (JHU) Dr Erwin Tanin (Stanford) Ngan Nguyen (Johns Hopkins University) Prof. Surjeet Rajendran (JHU) Xuheng Luo (Johns Hopkins University)

Presentation materials