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Measurement of Solar $^8$B neutrino flux using PandaX-4T data

13 Nov 2024, 14:00
30m
Tsung-Dao Lee Institute/S5F-S500 - Lecture Hall (Tsung-Dao Lee Institute)

Tsung-Dao Lee Institute/S5F-S500 - Lecture Hall

Tsung-Dao Lee Institute

200

Speaker

Qing Lin

Description

PandaX-4T is a multi-tonne-scale dark matter direct searching experiment, utilizing 3.7 tonne liquid xenon as target material in sensitive volume. The experiment is located at China Jinping Underground Laboratory, with overburden of 2400 meter water equivalent. In this talk, a search of the coherent elastic neutrino-nucleus scatterings induced by the solar $^8$B neutrinos using PandaX-4T data will be reported. Combining two data channels covering an energy region of about 0.4~1.2keV, a signal significance of 2.6$\sigma$ is obtained. The best-fit solar $^8$B neutrino flux is (8.4+-3.1)$\times$10$^6$ cm$^{-2}$s$^{-1}$, consistent with the standard solar model

Primary author

Presentation materials