Search for violation in D0 and D+ decays

被引：36

作者：

Link, JM

Paolone, VS

Reyes, M

Yager, PM

Anjos, JC

Bediaga, I

Göbel, C

Magnin, J

de Miranda, JM

Pepe, IM

dos Reis, AC

Simao, FRA

Carrillo, S

Casimiro, E

Mendez, H

Sánchez-Hernández, A

Uribe, C

Vazquez, F

Cinquini, L

Cumalat, JP

Ramirez, JE

O'Reilly, B

Vaandering, EW

Butler, JN

Cheung, HWK

Gaines, I

Garbincius, PH

Garren, LA

Gottschalk, E

Gourlay, SA

Kasper, PH

Kreymer, AE

Kutschke, R

Bianco, S

Fabbri, FL

Sarwar, S

Zallo, A

Cawlfield, C

Kim, DY

Park, KS

Rahimi, A

Wiss, J

Gardner, R

Chung, YS

Kang, JS

Ko, BR

Kwak, JW

Lee, KB

Myung, SS

Park, H

机构：

[1] Ist Nazl Fis Nucl, I-20133 Milan, Italy

[2] Univ Milan, Milan, Italy

[3] Univ Calif Davis, Davis, CA 95616 USA

[4] Ctr Brasileiro Pesquisas Fis, Rio De Janeiro, RJ, Brazil

[5] CINVESTAV, Mexico City 07000, DF, Mexico

[6] Univ Colorado, Boulder, CO 80309 USA

[7] Fermi Natl Accelerator Lab, Batavia, IL 60510 USA

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

[9] Univ Illinois, Urbana, IL 61801 USA

[10] Indiana Univ, Bloomington, IN 47405 USA

[11] Korea Univ, Seoul 136701, South Korea

[12] Univ N Carolina, Asheville, NC 28804 USA

[13] Dipartimento Fis Nucl & Teor, Pavia, Italy

[14] Ist Nazl Fis Nucl, I-27100 Pavia, Italy

[15] Univ Puerto Rico, Mayaguez, PR 00681 USA

[16] Univ S Carolina, Columbia, SC 29208 USA

[17] Univ Tennessee, Knoxville, TN 37996 USA

[18] Vanderbilt Univ, Nashville, TN 37235 USA

[19] Univ Wisconsin, Madison, WI 53706 USA

[20] Yonsei Univ, Seoul 120749, South Korea

来源：

PHYSICS LETTERS B | 2000年 / 491卷 / 3-4期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0370-2693(00)01039-X

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A high statistics sample of photoproduced charm particles from the FOCUS (E831) experiment at Fermilab has been used to search for CP violation in the Cabibbo suppressed decay modes D+ --> K(-)K(+)pi (+), D-0 --> K-K+ and D-0 --> pi (-)pi (+) We have measured the following CP asymmetry parameters: A(CP)(K(-)K(+)pi (+)) = +0.006 +/- 0.011 +/- 0.005, A(CP)(K-Kf) = -0.001 +/- 0.022 +/- 0.015 and A(CP)(pi (-)pi (+)) = +0.048 +/- 0.039 +/- 0.025 where the first error is statistical and the second error is systematic. These asymmetries are consistent with zero with smaller errors than previous measurements. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：232 / 239

页数：8

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