Precision tests of quantum mechanics and CPT $$ \mathcal{CPT} $$ symmetry with entangled neutral kaons at KLOE
Abstract The quantum interference between the decays of entangled neutral kaons is studied in the process ϕ → KSKL → π + π − π + π − , which exhibits the characteristic Einstein-Podolsky-Rosen correlations that prevent both kaons to decay into π + π − at the same time. This constitutes a very powerf...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2022-04-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP04(2022)059 |
| _version_ | 1827985396620853248 |
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| author | The KLOE-2 collaboration D. Babusci M. Berlowski C. Bloise F. Bossi P. Branchini A. Budano B. Cao F. Ceradini P. Ciambrone F. Curciarello E. Czerwiński G. D’Agostini R. D’Amico E. Danè V. De Leo E. De Lucia A. De Santis P. De Simone A. Di Cicco A. Di Domenico E. Diociaiuti D. Domenici A. D’Uffizi A. Fantini G. Fantini P. Fermani S. Fiore A. Gajos P. Gauzzi S. Giovannella E. Graziani V. L. Ivanov T. Johansson X. Kang D. Kisielewska-Kamińska E. A. Kozyrev W. Krzemien A. Kupsc P. A. Lukin G. Mandaglio M. Martini R. Messi S. Miscetti D. Moricciani P. Moskal A. Passeri V. Patera E. Perez del Rio P. Santangelo M. Schioppa A. Selce M. Silarski F. Sirghi E. P. Solodov L. Tortora G. Venanzoni W. Wiślicki M. Wolke |
| author_facet | The KLOE-2 collaboration D. Babusci M. Berlowski C. Bloise F. Bossi P. Branchini A. Budano B. Cao F. Ceradini P. Ciambrone F. Curciarello E. Czerwiński G. D’Agostini R. D’Amico E. Danè V. De Leo E. De Lucia A. De Santis P. De Simone A. Di Cicco A. Di Domenico E. Diociaiuti D. Domenici A. D’Uffizi A. Fantini G. Fantini P. Fermani S. Fiore A. Gajos P. Gauzzi S. Giovannella E. Graziani V. L. Ivanov T. Johansson X. Kang D. Kisielewska-Kamińska E. A. Kozyrev W. Krzemien A. Kupsc P. A. Lukin G. Mandaglio M. Martini R. Messi S. Miscetti D. Moricciani P. Moskal A. Passeri V. Patera E. Perez del Rio P. Santangelo M. Schioppa A. Selce M. Silarski F. Sirghi E. P. Solodov L. Tortora G. Venanzoni W. Wiślicki M. Wolke |
| author_sort | The KLOE-2 collaboration |
| collection | DOAJ |
| description | Abstract The quantum interference between the decays of entangled neutral kaons is studied in the process ϕ → KSKL → π + π − π + π − , which exhibits the characteristic Einstein-Podolsky-Rosen correlations that prevent both kaons to decay into π + π − at the same time. This constitutes a very powerful tool for testing at the utmost precision the quantum coherence of the entangled kaon pair state, and to search for tiny decoherence and CPT $$ \mathcal{CPT} $$ violation effects, which may be justified in a quantum gravity framework. The analysed data sample was collected with the KLOE detector at DAΦNE, the Frascati ϕ-factory, and corresponds to an integrated luminosity of about 1.7 fb −1, i.e. to about 1.7 × 109 ϕ → KSKL decays produced. From the fit of the observed ∆t distribution, being ∆t the difference of the kaon decay times, the decoherence and CPT $$ \mathcal{CPT} $$ violation parameters of various phenomenological models are measured with a largely improved accuracy with respect to previous analyses. The results are consistent with no deviation from quantum mechanics and CPT $$ \mathcal{CPT} $$ symmetry, while for some parameters the precision reaches the interesting level at which — in the most optimistic scenarios — quantum gravity effects might show up. They provide the most stringent limits up to date on the considered models. |
| first_indexed | 2024-04-09T23:14:14Z |
| format | Article |
| id | doaj.art-7eabc2aee2294ce5a4313f9803b3dfd3 |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-04-09T23:14:14Z |
| publishDate | 2022-04-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-7eabc2aee2294ce5a4313f9803b3dfd32023-03-22T10:09:42ZengSpringerOpenJournal of High Energy Physics1029-84792022-04-012022412110.1007/JHEP04(2022)059Precision tests of quantum mechanics and CPT $$ \mathcal{CPT} $$ symmetry with entangled neutral kaons at KLOEThe KLOE-2 collaborationD. Babusci0M. Berlowski1C. Bloise2F. Bossi3P. Branchini4A. Budano5B. Cao6F. Ceradini7P. Ciambrone8F. Curciarello9E. Czerwiński10G. D’Agostini11R. D’Amico12E. Danè13V. De Leo14E. De Lucia15A. De Santis16P. De Simone17A. Di Cicco18A. Di Domenico19E. Diociaiuti20D. Domenici21A. D’Uffizi22A. Fantini23G. Fantini24P. Fermani25S. Fiore26A. Gajos27P. Gauzzi28S. Giovannella29E. Graziani30V. L. Ivanov31T. Johansson32X. Kang33D. Kisielewska-Kamińska34E. A. Kozyrev35W. Krzemien36A. Kupsc37P. A. Lukin38G. Mandaglio39M. Martini40R. Messi41S. Miscetti42D. Moricciani43P. Moskal44A. Passeri45V. Patera46E. Perez del Rio47P. Santangelo48M. Schioppa49A. Selce50M. Silarski51F. Sirghi52E. P. Solodov53L. Tortora54G. Venanzoni55W. Wiślicki56M. Wolke57Laboratori Nazionali di Frascati dell’INFNNational Centre for Nuclear ResearchLaboratori Nazionali di Frascati dell’INFNLaboratori Nazionali di Frascati dell’INFNINFN Sezione di “Roma Tre”Dipartimento di Matematica e Fisica dell’Università “Roma Tre”Department of Physics and Astronomy, Uppsala UniversityDipartimento di Matematica e Fisica dell’Università “Roma Tre”Laboratori Nazionali di Frascati dell’INFNDipartimento di Fisica dell’Università della CalabriaInstitute of Physics, Jagiellonian UniversityDipartimento di Fisica dell’Università “Sapienza”Dipartimento di Fisica dell’Università “Sapienza”Laboratori Nazionali di Frascati dell’INFNDipartimento di Fisica dell’Università “Sapienza”Laboratori Nazionali di Frascati dell’INFNLaboratori Nazionali di Frascati dell’INFNLaboratori Nazionali di Frascati dell’INFNDipartimento di Matematica e Fisica dell’Università “Roma Tre”Dipartimento di Fisica dell’Università “Sapienza”Laboratori Nazionali di Frascati dell’INFNLaboratori Nazionali di Frascati dell’INFNLaboratori Nazionali di Frascati dell’INFNDipartimento di Fisica dell’Università “Tor Vergata”Dipartimento di Fisica dell’Università “Sapienza”Laboratori Nazionali di Frascati dell’INFNINFN Sezione di RomaInstitute of Physics, Jagiellonian UniversityDipartimento di Fisica dell’Università “Sapienza”Laboratori Nazionali di Frascati dell’INFNINFN Sezione di “Roma Tre”Budker Institute of Nuclear PhysicsDepartment of Physics and Astronomy, Uppsala UniversityLaboratori Nazionali di Frascati dell’INFNInstitute of Physics, Jagiellonian UniversityBudker Institute of Nuclear PhysicsNational Centre for Nuclear ResearchDepartment of Physics and Astronomy, Uppsala UniversityBudker Institute of Nuclear PhysicsINFN Sezione di CataniaLaboratori Nazionali di Frascati dell’INFNDipartimento di Fisica dell’Università “Tor Vergata”Laboratori Nazionali di Frascati dell’INFNLaboratori Nazionali di Frascati dell’INFNInstitute of Physics, Jagiellonian UniversityINFN Sezione di “Roma Tre”Dipartimento di Scienze di Base ed Applicate per l’Ingegneria dell’Università “Sapienza”Dipartimento di Fisica dell’Università “Sapienza”Laboratori Nazionali di Frascati dell’INFNDipartimento di Fisica dell’Università della CalabriaDipartimento di Matematica e Fisica dell’Università “Roma Tre”Institute of Physics, Jagiellonian UniversityLaboratori Nazionali di Frascati dell’INFNBudker Institute of Nuclear PhysicsINFN Sezione di “Roma Tre”INFN Sezione di PisaNational Centre for Nuclear ResearchDepartment of Physics and Astronomy, Uppsala UniversityAbstract The quantum interference between the decays of entangled neutral kaons is studied in the process ϕ → KSKL → π + π − π + π − , which exhibits the characteristic Einstein-Podolsky-Rosen correlations that prevent both kaons to decay into π + π − at the same time. This constitutes a very powerful tool for testing at the utmost precision the quantum coherence of the entangled kaon pair state, and to search for tiny decoherence and CPT $$ \mathcal{CPT} $$ violation effects, which may be justified in a quantum gravity framework. The analysed data sample was collected with the KLOE detector at DAΦNE, the Frascati ϕ-factory, and corresponds to an integrated luminosity of about 1.7 fb −1, i.e. to about 1.7 × 109 ϕ → KSKL decays produced. From the fit of the observed ∆t distribution, being ∆t the difference of the kaon decay times, the decoherence and CPT $$ \mathcal{CPT} $$ violation parameters of various phenomenological models are measured with a largely improved accuracy with respect to previous analyses. The results are consistent with no deviation from quantum mechanics and CPT $$ \mathcal{CPT} $$ symmetry, while for some parameters the precision reaches the interesting level at which — in the most optimistic scenarios — quantum gravity effects might show up. They provide the most stringent limits up to date on the considered models.https://doi.org/10.1007/JHEP04(2022)059Beyond Standard Modele +-e − Experiments |
| spellingShingle | The KLOE-2 collaboration D. Babusci M. Berlowski C. Bloise F. Bossi P. Branchini A. Budano B. Cao F. Ceradini P. Ciambrone F. Curciarello E. Czerwiński G. D’Agostini R. D’Amico E. Danè V. De Leo E. De Lucia A. De Santis P. De Simone A. Di Cicco A. Di Domenico E. Diociaiuti D. Domenici A. D’Uffizi A. Fantini G. Fantini P. Fermani S. Fiore A. Gajos P. Gauzzi S. Giovannella E. Graziani V. L. Ivanov T. Johansson X. Kang D. Kisielewska-Kamińska E. A. Kozyrev W. Krzemien A. Kupsc P. A. Lukin G. Mandaglio M. Martini R. Messi S. Miscetti D. Moricciani P. Moskal A. Passeri V. Patera E. Perez del Rio P. Santangelo M. Schioppa A. Selce M. Silarski F. Sirghi E. P. Solodov L. Tortora G. Venanzoni W. Wiślicki M. Wolke Precision tests of quantum mechanics and CPT $$ \mathcal{CPT} $$ symmetry with entangled neutral kaons at KLOE Journal of High Energy Physics Beyond Standard Model e +-e − Experiments |
| title | Precision tests of quantum mechanics and CPT $$ \mathcal{CPT} $$ symmetry with entangled neutral kaons at KLOE |
| title_full | Precision tests of quantum mechanics and CPT $$ \mathcal{CPT} $$ symmetry with entangled neutral kaons at KLOE |
| title_fullStr | Precision tests of quantum mechanics and CPT $$ \mathcal{CPT} $$ symmetry with entangled neutral kaons at KLOE |
| title_full_unstemmed | Precision tests of quantum mechanics and CPT $$ \mathcal{CPT} $$ symmetry with entangled neutral kaons at KLOE |
| title_short | Precision tests of quantum mechanics and CPT $$ \mathcal{CPT} $$ symmetry with entangled neutral kaons at KLOE |
| title_sort | precision tests of quantum mechanics and cpt mathcal cpt symmetry with entangled neutral kaons at kloe |
| topic | Beyond Standard Model e +-e − Experiments |
| url | https://doi.org/10.1007/JHEP04(2022)059 |
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