We present the first observation of quantum interference in the process phi→K(S)K(L) →pi+pi-pi+pi-, using the KLOE detector at the Frascati e+e− collider DAFNE. From about 5 × 10^4 neutral kaon pairs both decaying to pi+pi- pairs we obtain the distribution of Delta(t), the difference between the two kaon decay times, which allows testing the validity of quantum mechanics and CPT invariance: no violation of either is observed. New or improved limits on coherence loss and CPT violation are presented.
First observation of quantum interference in the process Phi-->K(S) K(L) --> pi+ pi- pi+ pi-: A test of quantum mechanics and CPT symmetry / Ambrosino, Fabio; T., Capussela; Chiefari, Giovanni; C., Di Donato; Massarotti, Paolo; S., Meola; Napolitano, Marco; F., Perfetto; Saracino, Giulio. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - (2006), pp. 315-321. [10.1016/j.physletb.2006.09.046]
First observation of quantum interference in the process Phi-->K(S) K(L) --> pi+ pi- pi+ pi-: A test of quantum mechanics and CPT symmetry
AMBROSINO, FABIO;CHIEFARI, GIOVANNI;MASSAROTTI, PAOLO;NAPOLITANO, MARCO;SARACINO, GIULIO
2006
Abstract
We present the first observation of quantum interference in the process phi→K(S)K(L) →pi+pi-pi+pi-, using the KLOE detector at the Frascati e+e− collider DAFNE. From about 5 × 10^4 neutral kaon pairs both decaying to pi+pi- pairs we obtain the distribution of Delta(t), the difference between the two kaon decay times, which allows testing the validity of quantum mechanics and CPT invariance: no violation of either is observed. New or improved limits on coherence loss and CPT violation are presented.| File | Dimensione | Formato | |
|---|---|---|---|
|
First observation ....pdf
non disponibili
Tipologia:
Documento in Post-print
Licenza:
Accesso privato/ristretto
Dimensione
470.79 kB
Formato
Adobe PDF
|
470.79 kB | Adobe PDF | Visualizza/Apri Richiedi una copia |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
