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2–8 Jul 2023
Sun Yat-sen University Zhuhai Campus
Asia/Shanghai timezone

The Sensitivity Floor for Primordial Black Holes Neutrino Searches

5 Jul 2023, 14:00
25m
A503 (Haiqin Building #6)

A503

Haiqin Building #6

Speaker

Qishan Liu (The Chinese University of Hong Kong)

Description

Primordial black holes (PBHs) are a well-motivated dark matter (DM) candidate over a wide range of masses. Light, asteroid- mass primordial black holes could be detected using neutrinos produced via Hawking radiation. We discuss using neutrino to search for non-rotating PBHs with monochromatic mass distributions, spanning from 5 × 10^14 g to 10^16 g. We consider the null observations of antineutrino flux from several neutrino detectors and set new constraints on the PBHs as a dark matter candidate. We also set the constraint using data from forecasts on JUNO detectors. In addition, we note that the Diffuse Supernova Neutrino Background (DSNB) is an unavoidable isotropic background, we thus estimate the sensitivity floor up to mass about 10^16 g caused by DSNB on PBHs dark matter.

Primary authors

Kenny Chun Yu Ng (Weizmann Institute of Science) Qishan Liu (The Chinese University of Hong Kong)

Presentation materials