Speaker
Erika De Lucia
(Laboratori Nazionali di Frascati (LNF)-Istituto Nazionale Fisic)
Description
The Ks --> 3pi0 decay is a pure CP violating process which, assuming
CPT invariance, allows direct CP violation to be investigated. This
decay has not been observed so far, and the best upper limit on the
branching ratio BR(KS --> 3pi0)< 1.2 10-7 is two orders of magnitude
larger than predictions based on the Standard Model. We present the
search for the Ks --> 3pi0 decay performed with the KLOE detector at the
DAFNE Phi-factory of the INFN Frascati Laboratory improving the present
upper limit by a factor about 5. We describe the experimental techniques
used in the background rejection and signal events selection. We also
discuss briefly the perspectives for a new measurement using the KLOE-2
apparatus equipped with a new Inner Tracker and calorimeters at low
theta angle.
Author
Fabio Bossi
(Laboratori Nazionali di Frascati (LNF))
