A Measurement of the D+(s) lifetime

Journal Article · Fri Apr 01 00:00:00 EST 2005 · Phys.Rev.Lett.95:052003,2005

DOI:https://doi.org/10.1103/PhysRevLett.95.052003· OSTI ID:15017211

Link, J M; Yager, P M; Anjos, J C; Bediaga, I; Castromonte, C; Machado, A A; Magnin, J; Massafferi, A; de Miranda, J M; Pepe, I M; Polycarpo, E; dosReis, A C; Carrillo, S; Casimiro, E; Cuautle, E; Sanchez-Hernandez, A; Uribe, C; Vazquez, F; Agostino, L; Cinquini, L

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

• Research Organization: Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-76CH03000
• OSTI ID: 15017211
• Report Number(s): FERMILAB-PUB-05-085-E; arXiv eprint number hep-ex/0504056; TRN: US0605130
• Journal Information: Phys.Rev.Lett.95:052003,2005, Journal Name: Phys.Rev.Lett.95:052003,2005
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
DECAY
FERMILAB
LIFETIME
PHOTOPRODUCTION
STATISTICS
Experiment-HEP