Measurement of the Ds+ lifetime

Authors

J. M. Link, University of California, DavisFollow
P. M. Yager, University of California, DavisFollow
J. C. Anjos, Centro Brasileiro de Pesquisas FísicasFollow
I. Bediaga, Centro Brasileiro de Pesquisas FísicasFollow
C. Castromonte, Centro Brasileiro de Pesquisas Físicas
A. A. Machado, Centro Brasileiro de Pesquisas FísicasFollow
J. Magnin, Centro Brasileiro de Pesquisas FísicasFollow
A. Massafferi, Centro Brasileiro de Pesquisas FísicasFollow
Abaz Kryemadhi, Messiah UniversityFollow
I. M. Ahsan, Kansas State UniversityFollow

Document Type

Article

Publication Date

7-29-2005

Abstract

A high statistics measurement of the Ds+ lifetime from the Fermilab fixed-target FOCUS photoproduction experiment is presented. We describe the analysis of the two decay modes, Ds+→(1020)π+ and Ds+→K̄ *(892)0K+, used for the measurement. The measured lifetime is 507.4±5.5(stat)±5.1(syst)fs using 8961±105 Ds+→(1020)π+ and 4680±90 Ds+→K̄*(892)0K+ decays. This is a significant improvement over the present world average. © 2005 The American Physical Society.

Recommended Citation

Link, J. M.; Yager, P. M.; Anjos, J. C.; Bediaga, I.; Castromonte, C.; Machado, A. A.; Magnin, J.; Massafferi, A.; Kryemadhi, Abaz; and Ahsan, I. M., "Measurement of the Ds+ lifetime" (2005). Educator Scholarship & Departmental Newsletters. 196.
https://mosaic.messiah.edu/mps_ed/196