A determination of the CP violation parameter η+- from the decay of strangeness-tagged neutral kaons

被引：35

作者：

Apostolakis, A ^{[1
]}

Aslanides, E

Backenstoss, G

Bargassa, P

Behnke, O

Benelli, A

Bertin, V

Blanc, F

Bloch, P

Carlson, P

Carroll, M

Cawley, E

Chertok, MB

Danielsson, M

Dejardin, M

Derre, J

Ealet, A

Eleftheriadis, C

Fetscher, W

Fidecaro, M

Filipcic, A

Francis, D

Gabathuler, E

Gamet, R

Gerber, HJ

Go, A

Haselden, A

Hayman, PJ

Henry-Couannier, F

Hollander, RW

Jon-And, K

Kettle, PR

Kokkas, P

Kreuger, R

Le Gac, R

Leimgruber, F

Mandic, I

Manthos, N

Marel, G

Mikuz, M

Miller, J

Montanet, F

Muller, A

Nakada, T

Pagels, B

Papadopoulos, I

Pavlopoulos, P

Polivka, G

Rickenbach, R

Roberts, BL

机构：

[1] Univ Athens, GR-10679 Athens, Greece

[2] Univ Basel, CH-4003 Basel, Switzerland

[3] Boston Univ, Boston, MA 02215 USA

[4] CERN, Geneva, Switzerland

[5] LIP, Coimbra, Portugal

[6] Univ Coimbra, P-3000 Coimbra, Portugal

[7] Delft Univ Technol, NL-2600 AA Delft, Netherlands

[8] Univ Fribourg, CH-1700 Fribourg, Switzerland

[9] Univ Ioannina, GR-45110 Ioannina, Greece

[10] Univ Liverpool, Liverpool L69 3BX, Merseyside, England

[11] Jozef Stefan Inst, Ljubljana, Slovenia

[12] Univ Ljubljana, Dept Phys, Ljubljana 61000, Slovenia

[13] CNRS, IN2P3, CPPM, F-75700 Paris, France

[14] Univ Aix Marseille 2, F-13284 Marseille 07, France

[15] CNRS, IN2P3, CSNSM, F-91405 Orsay, France

[16] Paul Scherrer Inst, Villigen, Switzerland

[17] CE Saclay, CEA, DSM, DAPNIA, Gif Sur Yvette, France

[18] Royal Inst Technol, S-10044 Stockholm, Sweden

[19] Univ Thessaloniki, Salonika, Greece

[20] ETH Zurich, IPP, Zurich, Switzerland

来源：

PHYSICS LETTERS B | 1999年 / 458卷 / 04期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0370-2693(99)00596-1

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report a measurement of the CP violation parameter eta(+-) from the time-dependent asymmetry between the decay rates of initially tagged K-0 and (K) over bar(0). The results are based on the complete data sample collected by the CPLEAR collaboration. With Delta m = (530.1 +/- 1.4) X 10(7)(h) over bar s(-1) and tau(S) = (89.34 +/- 0.08) ps, the values obtained are \eta(+-)\ = (2.264 +/- 0.023(stat) +/- 0.026(syst) +/- 0.007 tau(s)) x 10(-3) and phi(+-) = 43.19 degrees +/- 0.53(stat)degrees +/- 0.28(syst)degrees + 0.42(Delta m)degrees. (C) 1999 Published by Elsevier Science B.V. All rights reserved.

引用

页码：545 / 552

页数：8

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