A direct test of T symmetry in the neutral K meson system with Ks->pi l nu and Kl->3pi0 at KLOE-2
Abstract
Quantum entanglement of K and B mesons allows for a direct experimental test of time-reversal symmetry independent of CP violation. The T symmetry can be probed by exchange of initial and final states in the reversible transitions between flavour and CP-definite states of the mesons which are only connected by the T conjugation. While such a test was successfully performed by the BaBar experiment with neutral B mesons, the KLOE-2 detector can probe T-violation in the neutral kaon system by investigating the process with Ks->pi l nu and Kl->3pi0 decays. Analysis of the latter is facilitated by a novel reconstruction method for the vertex of Kl->3pi0 decay which only involves neutral particles. Details of this new vertex reconstruction technique are presented as well as prospects for conducting the direct T symmetry test at the KLOE-2 experiment.
- Publication:
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arXiv e-prints
- Pub Date:
- September 2014
- DOI:
- 10.48550/arXiv.1409.2132
- arXiv:
- arXiv:1409.2132
- Bibcode:
- 2014arXiv1409.2132G
- Keywords:
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- High Energy Physics - Experiment;
- High Energy Physics - Phenomenology
- E-Print:
- Talk given at the 4th Young Researchers Workshop "Physics Challenges in the LHC Era", Frascati, May 12 and 15, 2014 (6 pages, 2 figures)