The Korean Physical Society 06130 22, Teheran-ro 7-gil, Gangnam-gu, Seoul, Republic of Korea 610 Representation : Tae Won NOH TEL: 02-556-4737 FAX: 02-554-1643 E-mail : webmaster@kps.or.kr Copyright(C) KPS, All rights reserved.
30 May 2022 to 4 June 2022
Virtual Seoul
Asia/Seoul timezone

Antineutrino sensitivity at THEIA

Not scheduled
5m
Virtual Seoul

Virtual Seoul

Poster Geo neutrinos Poster

Speakers

Dr Zara Bagdasarian (University of California, Berkeley; Lawrence Berkeley National Laboratory) Dr Stephane Zsoldos (University of California, Berkeley; Lawrence Berkeley National Laboratory)

Description

This poster will present the sensitivity towards the detection of low-energy antineutrinos of the Theia detector. For the purposes of this study, we consider one of the possible proposed designs, a 25-ktonne Theia-25 detector filled with a water-based liquid scintillator (WbLS) placed at Sanford Underground Research Facility (SURF). Currently, only two detectors in the world have measured geoneutrinos, antineutrinos originating from the radioactive decays of long-lived isotopes naturally present in the crust and mantle. Due to variations of the crust thickness, the geoneutrino flux measurements at different geographical locations can help separate a much less position-dependent mantle contribution. We demonstrate Theia’s sensitivity to measure the antineutrino fluxes via Inverse-Beta Decay (IBD) interactions with unprecedented precisions for geo- and reactor neutrinos, respectively, in only one year. We also demonstrate the sensitivity towards the Th/U ratio in geoneutrino flux.

Collaboration Theia

Primary authors

Dr Zara Bagdasarian (University of California, Berkeley; Lawrence Berkeley National Laboratory) Dr Stephane Zsoldos (University of California, Berkeley; Lawrence Berkeley National Laboratory) Prof. Gabriel Orebi Gann (University of California, Berkeley; Lawrence Berkeley National Laboratory) Andrew Barna (University of Hawai‘i at Manoa) Prof. Stephen Dye (University of Hawai‘i at Manoa)

Presentation Materials