Improving CP Sensitivity with Muon Decay at Rest

11 Feb 2022, 13:00
15m

Speaker

Pedro Pasquini

Description

At long-baseline experiments, the genuine CP effect from the PMNS mixing matrix can be faked by the ubiquitous matter effect. The reduction of the experimental sensitivity to $\delta_D$ drops by 20% due to matter density uncertainties. In this work we present an experimental configuration that combines the DUNE experiment with a muon decay-at-rest ($\mu$DAR) source. The $\mu$DAR source provides a complementary $\overline \nu_\mu \rightarrow \overline \nu_e$ channel at a low energy, O(30) MeV. The synergy between DUNE and $\mu$DAR improves the sensitivity of $\delta_D$ by up to 50%, even in the presence of matter density uncertainties.

Authors

Shao-Feng Ge (TDLI-SJTU) Mr Chui-fan Kong (Shanghai Jiao Tong University & Tsung Dao Lee Institute) Pedro Pasquini

Presentation materials