Speaker
Prof.
Luigi Di Lella
(Scuola Normale Superiore di Pisa)
Description
Over the last few years it has become possible to study low
energy ππ scattering in K decays to three pions, thanks to the
high statistics measurement of K±→ π±π°π° decay with excellent
π°π° invariant mass resolution performed by the NA48/2 experiment
at the CERN SPS. The information on the ππ scattering lengths
which can be extracted from these results is reviewed and
compared with the results from studies of Ke4 decays, which
include recent NA48/2 measurements. The possibility of studying
ππ scattering in K±→ π±π+π− and KL→ π°π°π° decays is also discussed.
