A violation of mirror symmetry in the η→π+π-π0 Dalitz plot has long been recognized as a signal of C and CP violation. Here we show how the isospin of the underlying C- and CP-violating structures can be reconstructed from their kinematic representation in the Dalitz plot. Our analysis of the most recent experimental data reveals, for the first time, that the C- and CP-violating amplitude with total isospin I=2 is much more severely suppressed than that with total isospin I=0.
|Physical Review D
|Published - Jun 1 2020
Bibliographical noteFunding Information:
We thank Jian Liang for his assistance in the numerical analysis, Johan Bijnens for helpful correspondence regarding Ref. , Andrzej Kupsc for a discussion of the KLOE-2 experimental results , and Bastian Kubis for comments that we found helpful to clarifying our presentation. We acknowledge the DOE Office of Nuclear Physics under Contract No. DE-FG02-96ER40989 for partial support.
© 2020 authors.
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)