Measurement of the Ds+ lifetime -: art. no. 052003

被引：7

作者：

Link, JM ^{[1
]}

Yager, PM

Anjos, JC

Bediaga, I

Castromonte, C

Machado, AA

Magnin, J

Massafferi, 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-20133 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：

PHYSICAL REVIEW LETTERS | 2005年 / 95卷 / 05期

关键词：

D O I：

10.1103/PhysRevLett.95.052003

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A high statistics measurement of the D-s(+) lifetime from the Fermilab fixed-target FOCUS photoproduction experiment is presented. We describe the analysis of the two decay modes, D-s(+)->phi(1020)pi(+) and D-s(+)->(K) over bar*(892)K-0(+), used for the measurement. The measured lifetime is 507.4 +/- 5.5(stat)+/- 5.1(syst) fs using 8961 +/- 105 D-s(+)->phi(1020)pi(+) and 4680 +/- 90 D-s(+)->(K) over bar*(892)K-0(+) decays. This is a significant improvement over the present world average.

引用

页数：5

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