20–25 Aug 2023
Universität Hamburg
Europe/Berlin timezone

Observation of the post-tagging effect for entangled K mesons at KLOE

21 Aug 2023, 09:18
18m
Hörsaal C (Historic main building)

Hörsaal C

Historic main building

Edmund-Siemers-Allee 1
Parallel session talk Flavour Physics and CP Violation T08 Flavour Physics and CP Violation

Speaker

Antonio Di Domenico (Sapienza University of Rome and INFN Rome)

Description

Novel quantum phenomena have been recently discussed [1] in association to a peculiar time correlation between entangled neutral kaons produced at a φ-factory: the past state of the first decayed kaon, when it was still entangled before its decay, is post-tagged by the result and the time of the future observation on the other kaon decay. This surprising “from future to past” effect is fully observable. Preliminary results obtained on the analysis of data collected by the KLOE experiment at the DAΦNE collider are presented, showing experimental evidence of this new effect.
[1] J. Bernabeu, A. Di Domenico, Phys. Rev. D 105 (11) (2022) 116004.

Collaboration / Activity KLOE-2

Primary author

Antonio Di Domenico (Sapienza University of Rome and INFN Rome)

Presentation materials