19–21 May 2025
University of Pittsburgh
US/Eastern timezone

Probing dark matter – neutrino interaction from the double beta decay at PandaX

20 May 2025, 14:45
15m
David Lawrence Hall 203, University of Pittsburgh

David Lawrence Hall 203, University of Pittsburgh

Neutrino Physics Neutrino

Speaker

Yihong Zhong (Shanghai Jiao Tong University)

Description

The neutrinoless double beta decay experiments not only give great prospects for us to understand the nature of neutrinos, but also a efficient way to test the dark matter – neutrino interactions. We analyze the double beta decay data at PandaX to probe the dark matter – neutrino interaction. We compute the nuclear matrix element with the presence of this new interaction. We found that the nuclear matrix element for double beta decay with massive dark matter emission differs significantly from the standard one. The latest data from PandaX put a stringent bound on the parameter space of the light mediator scenario at the mediator mass around 1 MeV.

Authors

Michael Ramsey-Musolf PandaX collaboration (TDLI - SJTU) Dr Van Que Tran (NCTS, National Taiwan University) Yihong Zhong (Shanghai Jiao Tong University)

Presentation materials

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