Search for T violation in charm meson decays

被引：37

作者：

Link, JM ^{[1
]}

Yager, PM

Anjos, JC

Bediaga, I

Castromonte, C

Machado, AA

Magnin, J

Massafferri, A

de Miranda, JM

Pepe, IM

Polycarpo, E

dos Reis, AC

Carrillo, S

Casimiro, E

Cuautle, E

Sánchez-Hernández, A

Uribe, C

Vázquez, F

Agostino, L

Cinquini, L

Cumalat, JP

O'Reilly, B

Segoni, I

Stenson, K

Butler, JN

Cheung, HWK

Chiodini, G

Gaines, I

Garbincius, PH

Garren, LA

Gottschalk, E

Kasper, PH

Kreymer, AE

Kutschke, R

Wang, M

Benussi, L

Bertani, M

Bianco, S

Fabbri, FL

Pacetti, S

Zallo, A

Reyes, M

Cawlfield, C

Kim, DY

Rahimi, A

Wiss, J

Gardner, R

Kryemadhi, A

Chung, YS

Kang, JS

机构：

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

[2] Ctr Brasileiro Pesquisas Fis, Rio De Janeiro, Brazil

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

[4] Univ Colorado, Boulder, CO 80309 USA

[5] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA

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

[7] Univ Guanajuato, Guanajuato 37150, Mexico

[8] Univ Illinois, Urbana, IL 61801 USA

[9] Indiana Univ, Bloomington, IN 47405 USA

[10] Korea Univ, Seoul 136701, South Korea

[11] Kyungpook Natl Univ, Taegu 702701, South Korea

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

[13] Univ Milan, I-20122 Milan, Italy

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

[15] Univ Pavia, Dipartimento Fis Nucl & Teor, I-27100 Pavia, Italy

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

[17] Pontificia Univ Catolica Rio de Janeiro, Rio De Janeiro, Brazil

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

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

[20] Univ Tennessee, Knoxville, TN 37996 USA

[21] Vanderbilt Univ, Nashville, TN 37235 USA

[22] Univ Wisconsin, Madison, WI 53706 USA

来源：

PHYSICS LETTERS B | 2005年 / 622卷 / 3-4期

基金：

美国国家科学基金会; 新加坡国家研究基金会;

关键词：

D O I：

10.1016/j.physletb.2005.07.024

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Using data from the FOCUS (E831) experiment, we have searched for T violation in charm meson decays using the four-body decay channels D-0 -> K(-)K(+)pi(-)pi(+), D+ -> K(S)(0)K(+)pi(-)pi(+), and D-s(+) -> K(S)(0)K(+)pi(-)pi(+). The T violation asymmetry is obtained using triple-product correlations and assuming the validity of the CPT theorem. We find the asymmetry values to be A(Tviol)(D-0) = 0.010 +/- 0.057(stat.) +/- 0.037(syst.), A(Tviol)(D+) = 0.023 +/- 0.062(stat.) +/- 0.022(syst.), and A(Tviol)(D-s(+)) = -0.036 +/- 0.067(stat.) +/- 0.023(syst.). Each measurement is consistent with no T violation. New measurements of the CP asymmetries for some of these decay modes are also presented. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：239 / 248

页数：10

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