INPA SEMINAR SPEAKER: Dacheng Xu(Columbia University)- Title: Measurement of the Solar Boron-8 Neutrino Fog with XENONnT
2026-08-07 12:00 - 13:00 (America/Los_Angeles)
Date: August 7, 2026
Time: 12:00 pm – 1:00 pm
Location: Sessler Conference Room – 50A-5132 [Hybrid and In-Person] or UC Campus (Physics 375)
Speaker: Dacheng Xu (Columbia University)
Title: Measurement of the Solar Boron-8 Neutrino Fog with XENONnT
Abstract: Coherent elastic neutrino–nucleus scattering (CEvNS) of solar neutrinos is a fundamental Standard Model process and an irreducible background for next-generation dark matter searches, often referred to as the “neutrino fog.” With its large exposure and ultra-low background, XENONnT has reached the sensitivity required to observe this interaction. Using data from the first three science runs, we have searched for Boron-8 solar neutrino CEvNS and rejected the background-only hypothesis at 3.3 sigma. In this talk, I will present a detailed view of the search for solar Boron-8 CEvNS using the full analyzed dataset and discuss its implications for beyond-Standard-Model neutrino physics and light dark matter in neutrino fog.
Join Zoom Meeting
https://lbnl.zoom.us/j/95016696011?pwd=[REDACTED]
Meeting ID: 950 1669 6011
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