A precise measurement of the direct CP violation parameter Re(ε′/ε)

被引：0

作者：

Lai, A ^{[1
]}

Marras, D

Bevan, A

Dosanjh, RS

Gershon, TJ

Hay, B

Kalmus, GE

Lazzeroni, C

Munday, DJ

Needham, MD

Olaiya, E

Parker, MA

White, TO

Wotton, SA

Barr, G

Bocquet, G

Ceccucci, A

Cuhadar-Dönszelmann, T

Cundy, D

D'Agostini, G

Doble, N

Falaleev, V

Funk, W

Gatignon, L

Gonidec, A

Gorini, B

Govi, G

Grafström, P

Kubischta, W

Lacourt, A

Lenti, M

Luitz, S

Matheys, JP

Mikulec, I

Norton, A

Palestini, S

Panzer-Steindel, B

Schinzel, D

Tatishvili, G

Taureg, H

Velasco, M

Vossnack, O

Wahl, H

Cheshkov, C

Gaponenko, A

Hristov, P

Kekelidze, V

Madigojine, D

Molokanova, N

Potrebenikov, Y

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] Univ Mainz, Inst Phys, D-55099 Mainz, Germany

[12] Univ Paris 11, Lab Accelerateur Lineaire, CNRS, IN2P3, F-91898 Orsay, France

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

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

[15] Scuola Normale Super Pisa, Dipartimento Fis, I-56100 Pisa, Italy

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

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

[18] Univ Gesamthsch Siegen, Fachbereich Phys, D-57068 Siegen, Germany

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

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

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

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

来源：

EUROPEAN PHYSICAL JOURNAL C | 2001年 / 22卷 / 02期

关键词：

D O I：

10.1007/s100520100822

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

The direct CP violation parameter Re(epsilon'/epsilon) has been measured from the decay rates of neutral kaons into two pions using the NA48 detector at the CERN SPS. With 3.3 million K-L --> pi(o)pi(o) events collected during the 1998 and 1909 running periods, a result of Re(epsilon'/epsilon) (15.0 +/- 2.7) x 10(-4) has been obtained. The result combined with the published 1997 sample is Re(epsilon'/epsilon) (15.3 +/- 2.6) x 10(-4).

引用

页码：231 / 254

页数：24

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