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Recent results on CP and CPT tests at KLOE/KLOE-2

Authors
Journal
Nuclear Physics B - Proceedings Supplements
0920-5632
Publisher
Elsevier
Volume
233
Identifiers
DOI: 10.1016/j.nuclphysbps.2012.12.057
Keywords
  • Cp Violation
  • Cpt Violation
  • Neutral Kaons
  • ϕ-Factory
Disciplines
  • Physics

Abstract

Abstract Neutral kaon pairs produced in ϕ decays offer a unique possibility to perform fundamental tests of discrete symmetries. Among the most recent results obtained by the KLOE experiment at DAΦNE, the Frascati ϕ-factory, there is the new best limit on the branching ratio of the CP-violating decay KS→3π0, BR<2.6×10−8 at 90% C.L.. The search for possible violations of the CPT symmetry and Lorentz invariance in the context of the Standard-Model Extension (SME) is also described; the new analysis approach fully exploits quantum interferometry in ϕ→KSKL→π+π−, π+π− decays. Finally the status and perspectives of the new data taking campaign with the KLOE-2 experiment at the upgraded DAΦNE machine are briefly reviewed.

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