Speakers
Dr
Jun Shi
(South China Normal University)
Susan Gardner
(University of Kentucky)
Description
The decay $\eta\to\pi^+\pi^- \pi^0$ is an ideal channel in which to study flavor-conserving $C$ and $CP$ violation beyond the Standard Model. We use Standard Model Effective Field Theory (SMEFT) to deduce the mass-dimension-six operators that can contribute to its signature, i.e., an observed breaking of mirror symmetry in its Dalitz plot. Using chiral-effective theory, we present the leading hadron-level operators associated with the $I=0$ and $I=2$ transitions, and we use KLOE-2 and BES-III data to determine their strength. With this, we show how future $\eta\to \pi^+\pi^-\pi^0$ decay measurements at different experimental facilities can reveal the landscape of $C$ and $CP$ violation.
Authors
Dr
Jun Shi
(South China Normal University)
Susan Gardner
(University of Kentucky)
