June 29, 2015 to July 3, 2015
Europe/Rome timezone

Studies of the Ke4 decay at NA48

Jun 29, 2015, 3:20 PM
Aula Magna (Building E, Polo Fibonacci, Pisa)

Aula Magna

Building E, Polo Fibonacci, Pisa

Talk Goldstone Boson Working Group Parallel Session 1 - Goldstone Boson WG


Michal Zamkovsky (IPNP, Charles University, Prague)


The NA48/2 experiment has recently published a detailed study of the Ke4 decay mode K —> pi0 pi0 e nu based on 65000 candidates with a low 1% background contamination. The achieved experimental precision brings evidence for isospin breaking mass effects and final state pi pi scattering. Theoretical calculations will have to face a new precision challenge when using such improved inputs to extract for example low energy constants of Chiral Perturbation Theory.

Primary author

Cristina Lazzeroni (University of Birmingham)

Presentation materials