Test of CPT and Lorentz symmetry in entangled neutral kaons with the KLOE experiment

被引：65

作者：

Babusci, D. ^{[9
]}

Balwierz-Pytko, I. ^{[8
]}

Bencivenni, G. ^{[9
]}

Bloise, C. ^{[9
]}

Bossi, F. ^{[9
]}

Branchini, P. ^{[20
]}

Budano, A. ^{[19
,20
]}

Balkestahl, L. Caldeira ^{[22
]}

Capon, G. ^{[9
]}

Ceradini, F. ^{[19
,20
]}

Ciambrone, P. ^{[9
]}

Curciarello, F. ^{[5
,10
]}

Czerwinski, E. ^{[8
]}

Dane, E. ^{[9
]}

De Leo, V. ^{[5
,10
]}

De Lucia, E. ^{[9
]}

De Robertis, G. ^{[3
]}

De Santis, A. ^{[1
,16
,17
]}

De Simone, P. ^{[9
]}

Di Cicco, A. ^{[19
,20
]}

Di Domenico, A. ^{[16
,17
]}

Di Donato, C. ^{[12
,13
]}

Di Salvo, R.

Domenici, D. ^{[9
]}

Erriquez, O. ^{[2
,3
]}

Fanizzi, G. ^{[2
,3
]}

Fantini, A. ^{[18
]}

Felici, G. ^{[9
]}

Fiore, S. ^{[16
,17
]}

Franzini, P. ^{[16
,17
]}

Gajos, A. ^{[8
]}

Gauzzi, P. ^{[16
,17
]}

Giardina, G. ^{[5
,10
]}

Giovannella, S. ^{[9
]}

Graziani, E. ^{[20
]}

Happacher, F. ^{[9
]}

Heijkenskjold, L. ^{[22
]}

Hoistad, B. ^{[22
]}

Jacewicz, M. ^{[22
]}

Johansson, T. ^{[22
]}

Kacprzak, K. ^{[8
]}

Kaminska, G. D. ^{[8
]}

Kupsc, A. ^{[22
]}

Lee-Franzini, J. ^{[9
,21
]}

Loddo, F. ^{[3
]}

Loffredo, S. ^{[19
,20
]}

Mandaglio, G. ^{[4
,5
,10
]}

Martemianov, M. ^{[11
]}

Martini, M. ^{[9
,15
]}

Mascolo, M. ^{[18
]}

机构：

[1] Ist Nazl Fis Nucl, Sez Roma, Rome, Italy

[2] Univ Bari, Dipartimento Fis, Bari, Italy

[3] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy

[4] Ctr Siciliano Fis Nucl & Struttura Mat, Catania, Italy

[5] Ist Nazl Fis Nucl, Sez Catania, I-95129 Catania, Italy

[6] Univ Calabria, Dipartimento Fis, I-87036 Cosenza, Italy

[7] Ist Nazl Fis Nucl, Grp Collegato Cosenza, Cosenza, Italy

[8] Jagiellonian Univ, Inst Phys, Krakow, Poland

[9] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy

[10] Univ Messina, Dipartimento Fis & Sci Terra, Messina, Italy

[11] Inst Theoret & Expt Phys, Moscow 117259, Russia

[12] Univ Naples Federico II, Dipartimento Fis, Naples, Italy

[13] Ist Nazl Fis Nucl, Sez Napoli, I-80125 Naples, Italy

[14] Univ Roma La Sapienza, Dipartimento Sci Base & Applicate Ingn, Rome, Italy

[15] Univ Guglielmo Marconi, Dipartimento Sci & Tecnol Applicate, Rome, Italy

[16] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy

[17] Ist Nazl Fis Nucl, Sez Roma, Rome, Italy

[18] Univ Roma Tor Vergata, Dipartimento Fis, I-00173 Rome, Italy

[19] Univ Roma Tre, Dipartimento Matemat & Fis, Rome, Italy

[20] Ist Nazl Fis Nucl, Sez Roma Tre, Rome, Italy

[21] SUNY Stony Brook, Dept Phys, Stony Brook, NY USA

[22] Uppsala Univ, Dept Phys & Astron, Uppsala, Sweden

[23] Natl Ctr Nucl Res, Warsaw, Poland

来源：

PHYSICS LETTERS B | 2014年 / 730卷

关键词：

CPT symmetry; Lorentz symmetry; Neutral kaons; phi-Factory;

D O I：

10.1016/j.physletb.2014.01.026

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Neutral kaon pairs produced in phi decays in anti-symmetric entangled state can be exploited to search for violation of CPT symmetry and Lorentz invariance. We present an analysis of the CP-violating process phi -> KSKL -> pi(+)pi(-)pi(+)pi(-) based on 1.7 fb(-1) of data collected by the KLOE experiment at the Frascati phi-factory DA Phi NE. The data are used to perform a Measurement of the CPT-violating parameters Delta a(mu) for neutral kaons in the context of the Standard Model Extension framework. The parameters measured in the reference frame of the fixed stars are: Delta a(0) = (-6.0 +/- 7.7(stat)+/- 3.1(syst)) X 10(-18) GeV, Delta a(x) = (0.9 +/- 1.5(stat)+/- 0.6(syst)) X 10(-18) GeV, Delta a(y) = (-2.0 +/- 1.5(stat)+/- 0.5(syst)) X 10(-18) GeV, Delta a(z) = (3.1 +/- 1.7(stat)+/- 0.5(syst)) X 10(-18) GeV. These are presently the most precise measurements in the quark sector of the Standard Model Extension. (C) 2014 The Authors. Published by Elsevier B.V.

引用

页码：89 / 94

页数：6

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