A new measurement of direct CP violation in two pion decays of the neutral kaon

被引：306

作者：

Fanti, V ^{[1
]}

Lai, A

Marras, D

Musa, L

Bevan, AJ

Gershon, TJ

Hay, B

Moore, RW

Moore, KN

Munday, DJ

Needham, MD

Parker, MA

Takach, SF

White, TO

Wotton, SA

Barr, G

Blümer, H

Bocquet, G

Bremer, J

Ceccucci, A

Cogan, J

Cundy, D

Doble, N

Funk, W

Gatignon, L

Gianoli, A

Gonidec, A

Govi, G

Grafström, P

Kesseler, G

Kubischta, W

Lacourt, A

Luitz, S

Matheys, JP

Norton, A

Palestini, S

Panzer-Steindel, B

Peyaud, B

Schinzel, D

Taureg, H

Velasco, M

Vossnack, O

Wahl, H

Wirrer, G

Gaponenko, A

Kekelidze, V

Madigojine, D

Mestvirishvili, A

Potrebenikov, Y

Tatishvili, G

机构：

[1] Univ Cagliari, Dipartimento Fis, I-09100 Cagliari, Italy

[2] Ist Nazl Fis Nucl, Sez Cagliari, I-09100 Cagliari, Italy

[3] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England

[4] CERN, CH-1211 Geneva 23, Switzerland

[5] Joint Inst Nucl Res, Dubna, Russia

[6] Univ Edinburgh, Dept Phys & Astron, Edinburgh EH9 3JZ, Midlothian, Scotland

[7] Univ Ferrara, Dipartimento Fis, I-44100 Ferrara, Italy

[8] Ist Nazl Fis Nucl, Sez Ferrara, I-44100 Ferrara, Italy

[9] Univ Florence, Dipartimento Fis, I-50125 Florence, Italy

[10] Ist Nazl Fis Nucl, Sez Firenze, I-50125 Florence, Italy

[11] Johannes Gutenberg Univ Mainz, Inst Phys, D-55099 Mainz, Germany

[12] Univ Paris 11, Lab Accelerateur Lineaire, CNRS, IN2P3, F-91406 Orsay, France

[13] Univ Perugia, Dipartimento Fis, I-06100 Perugia, Italy

[14] Ist Nazl Fis Nucl, Sez Perugia, I-06100 Perugia, Italy

[15] Univ Pisa, Dipartimento Fis, I-56100 Pisa, Italy

[16] Scuola Normale Super Pisa, I-56100 Pisa, Italy

[17] Ist Nazl Fis Nucl, Sez Pisa, I-56100 Pisa, Italy

[18] CEA Saclay, DAPNIA, DSM, F-91191 Gif Sur Yvette, France

[19] Univ Siegen, Fachbereich Phys, D-57068 Siegen, Germany

[20] Univ Turin, Dipartimento Fis Sperimentale, I-10125 Turin, Italy

[21] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy

[22] Soltan Inst Nucl Studies, High Energy Phys Lab, PL-00681 Warsaw, Poland

[23] Austrian Acad Sci, Inst Hochenergiephys, A-1050 Vienna, Austria

[24] Univ Bologna, Dipartimento Fis, I-40126 Bologna, Italy

[25] Ist Nazl Fis Nucl, Sez Bologna, I-40126 Bologna, Italy

[26] Univ Modena, Dipartimento Fis, I-41100 Modena, Italy

[27] Univ Los Andes, Dept Fis, Merida 5101A, Venezuela

来源：

PHYSICS LETTERS B | 1999年 / 465卷 / 1-4期

关键词：

D O I：

10.1016/S0370-2693(99)01030-8

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The NA48 experiment at CERN has performed a new measurement of direct CP violation, based on data taken in 1997 by simultaneously collecting K-L and K-S decays into pi(0)pi(0) and pi(+)pi(-). The result for the CP violating parameter Re(epsilon'/epsilon) is (18.5 +/- 4.5(stat) +/- 5.8(syst)) X 10(-4). (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：335 / 348

页数：14

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