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Direct tests of T, CP, CPT symmetries in transitions of neutral K mesons with the KLOE experiment. / The KLOE-2 Collaboration.

In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 845, 138164, 10.10.2023.

Research output: Contribution to journal › Article › peer-review

Harvard

The KLOE-2 Collaboration 2023, 'Direct tests of T, CP, CPT symmetries in transitions of neutral K mesons with the KLOE experiment', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 845, 138164. https://doi.org/10.1016/j.physletb.2023.138164

APA

The KLOE-2 Collaboration (2023). Direct tests of T, CP, CPT symmetries in transitions of neutral K mesons with the KLOE experiment. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 845, [138164]. https://doi.org/10.1016/j.physletb.2023.138164

Vancouver

The KLOE-2 Collaboration. Direct tests of T, CP, CPT symmetries in transitions of neutral K mesons with the KLOE experiment. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 2023 Oct 10;845:138164. doi: 10.1016/j.physletb.2023.138164

Author

The KLOE-2 Collaboration. / Direct tests of T, CP, CPT symmetries in transitions of neutral K mesons with the KLOE experiment. In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 2023 ; Vol. 845.

BibTeX

@article{b51573604c104ead80cfedd1f2fbd855,
title = "Direct tests of T, CP, CPT symmetries in transitions of neutral K mesons with the KLOE experiment",
abstract = "Tests of the T, CP and CPT symmetries in the neutral kaon system are performed by the direct comparison of the probabilities of a kaon transition process to its symmetry-conjugate. The exchange of in and out states required for a genuine test involving an antiunitary transformation implied by time-reversal is implemented exploiting the entanglement of K0K‾0 pairs produced at a ϕ-factory. A data sample collected by the KLOE experiment at DAΦNE corresponding to an integrated luminosity of about 1.7 fb−1 is analysed to study the Δt distributions of the ϕ→KSKL→π+π−π±e∓ν and ϕ→KSKL→π±e∓ν3π0 processes, with Δt the difference of the kaon decay times. A comparison of the measured Δt distributions in the asymptotic region Δt≫τS allows to test for the first time T and CPT symmetries in kaon transitions with a precision of few percent, and to observe CP violation with this novel method.",
keywords = "CP violation, Discrete and finite symmetries, Kaon physics",
author = "{The KLOE-2 Collaboration} and D. Babusci and M. Ber{\l}owski and C. Bloise and F. Bossi and P. Branchini and B. Cao and F. Ceradini and P. Ciambrone and F. Curciarello and E. Czerwi{\'n}ski and G. D'Agostini and R. D'Amico and E. Dan{\`e} and {De Leo}, V. and {De Lucia}, E. and {De Santis}, A. and {De Simone}, P. and {Di Domenico}, A. and E. Diociaiuti and D. Domenici and A. D'Uffizi and G. Fantini and A. Gajos and S. Gamrat and P. Gauzzi and S. Giovannella and E. Graziani and X. Kang and A. Kup{\'s}{\'c} and G. Mandaglio and M. Martini and S. Miscetti and P. Moskal and A. Passeri and {P{\'e}rez del R{\'i}o}, E. and M. Schioppa and A. Selce and M. Silarski and F. Sirghi and Solodov, {E. P.} and W. Wi{\'s}licki and M. Wolke and J. Bernab{\'e}u",
note = "We warmly thank our former KLOE colleagues for the access to the data collected during the KLOE data taking campaign. We thank the DAΦNE team for their efforts in maintaining good running conditions and their collaboration during both the KLOE run and the KLOE-2 data taking with an upgraded collision scheme [42,43] . We are very grateful to our colleague G. Capon for his enlightening comments and suggestions about the manuscript. We want to thank our technical staff: G.F. Fortugno and F. Sborzacchi for their dedication in ensuring efficient operation of the KLOE computing facilities; M. Anelli for his continuous attention to the gas system and detector safety; A. Balla, M. Gatta, G. Corradi and G. Papalino for electronics maintenance; C. Piscitelli for his help during major maintenance periods. This work was supported in part by the Polish National Science Centre through the Grants No. 2014/14/E/ST2/00262 , 2016/21/N/ST2/01727 , 2017/26/M/ST2/00697 . A.G. acknowledges the support from the Foundation for Polish Science through grant TEAM POIR.04.04.00-00-4204/17. Публикация для корректировки.",
year = "2023",
month = oct,
day = "10",
doi = "10.1016/j.physletb.2023.138164",
language = "English",
volume = "845",
journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",
issn = "0370-2693",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Direct tests of T, CP, CPT symmetries in transitions of neutral K mesons with the KLOE experiment

AU - The KLOE-2 Collaboration

AU - Babusci, D.

AU - Berłowski, M.

AU - Bloise, C.

AU - Bossi, F.

AU - Branchini, P.

AU - Cao, B.

AU - Ceradini, F.

AU - Ciambrone, P.

AU - Curciarello, F.

AU - Czerwiński, E.

AU - D'Agostini, G.

AU - D'Amico, R.

AU - Danè, E.

AU - De Leo, V.

AU - De Lucia, E.

AU - De Santis, A.

AU - De Simone, P.

AU - Di Domenico, A.

AU - Diociaiuti, E.

AU - Domenici, D.

AU - D'Uffizi, A.

AU - Fantini, G.

AU - Gajos, A.

AU - Gamrat, S.

AU - Gauzzi, P.

AU - Giovannella, S.

AU - Graziani, E.

AU - Kang, X.

AU - Kupść, A.

AU - Mandaglio, G.

AU - Martini, M.

AU - Miscetti, S.

AU - Moskal, P.

AU - Passeri, A.

AU - Pérez del Río, E.

AU - Schioppa, M.

AU - Selce, A.

AU - Silarski, M.

AU - Sirghi, F.

AU - Solodov, E. P.

AU - Wiślicki, W.

AU - Wolke, M.

AU - Bernabéu, J.

N1 - We warmly thank our former KLOE colleagues for the access to the data collected during the KLOE data taking campaign. We thank the DAΦNE team for their efforts in maintaining good running conditions and their collaboration during both the KLOE run and the KLOE-2 data taking with an upgraded collision scheme [42,43] . We are very grateful to our colleague G. Capon for his enlightening comments and suggestions about the manuscript. We want to thank our technical staff: G.F. Fortugno and F. Sborzacchi for their dedication in ensuring efficient operation of the KLOE computing facilities; M. Anelli for his continuous attention to the gas system and detector safety; A. Balla, M. Gatta, G. Corradi and G. Papalino for electronics maintenance; C. Piscitelli for his help during major maintenance periods. This work was supported in part by the Polish National Science Centre through the Grants No. 2014/14/E/ST2/00262 , 2016/21/N/ST2/01727 , 2017/26/M/ST2/00697 . A.G. acknowledges the support from the Foundation for Polish Science through grant TEAM POIR.04.04.00-00-4204/17. Публикация для корректировки.

PY - 2023/10/10

Y1 - 2023/10/10

N2 - Tests of the T, CP and CPT symmetries in the neutral kaon system are performed by the direct comparison of the probabilities of a kaon transition process to its symmetry-conjugate. The exchange of in and out states required for a genuine test involving an antiunitary transformation implied by time-reversal is implemented exploiting the entanglement of K0K‾0 pairs produced at a ϕ-factory. A data sample collected by the KLOE experiment at DAΦNE corresponding to an integrated luminosity of about 1.7 fb−1 is analysed to study the Δt distributions of the ϕ→KSKL→π+π−π±e∓ν and ϕ→KSKL→π±e∓ν3π0 processes, with Δt the difference of the kaon decay times. A comparison of the measured Δt distributions in the asymptotic region Δt≫τS allows to test for the first time T and CPT symmetries in kaon transitions with a precision of few percent, and to observe CP violation with this novel method.

AB - Tests of the T, CP and CPT symmetries in the neutral kaon system are performed by the direct comparison of the probabilities of a kaon transition process to its symmetry-conjugate. The exchange of in and out states required for a genuine test involving an antiunitary transformation implied by time-reversal is implemented exploiting the entanglement of K0K‾0 pairs produced at a ϕ-factory. A data sample collected by the KLOE experiment at DAΦNE corresponding to an integrated luminosity of about 1.7 fb−1 is analysed to study the Δt distributions of the ϕ→KSKL→π+π−π±e∓ν and ϕ→KSKL→π±e∓ν3π0 processes, with Δt the difference of the kaon decay times. A comparison of the measured Δt distributions in the asymptotic region Δt≫τS allows to test for the first time T and CPT symmetries in kaon transitions with a precision of few percent, and to observe CP violation with this novel method.

KW - CP violation

KW - Discrete and finite symmetries

KW - Kaon physics

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85170228935&origin=inward&txGid=5e90219865e45cea5236f0b6e1f5831b

UR - https://www.mendeley.com/catalogue/e30f3790-0481-3255-99e3-8ba0861b9ea6/

U2 - 10.1016/j.physletb.2023.138164

DO - 10.1016/j.physletb.2023.138164

M3 - Article

VL - 845

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

SN - 0370-2693

M1 - 138164

ER -

ID: 59284950