Measurement of the Tau Lepton Lifetime Using the SLD Detector at the Stanford Linear Collider

Technical Report · Mon Jan 05 00:00:00 EST 2004

DOI:https://doi.org/10.2172/826659· OSTI ID:826659

Turk, J

The lifetime of the tau lepton is measured to be (2.50 {+-} 0.35) x 10{sup -14}s. The measurement combines the results of two different techniques used on separate samples of tau events collected at the Stanford Linear Collider by the SLD detector during the 1992 physics run. The first technique measures the decay length from the known interaction position to the reconstructed decay vertex position. This requires that the taus have at least three charged decay products. The second technique infers the decay length by correlating the differences in signed impact parameters (for single-charged track decays) with the angles between the tracks.

• Research Organization: SLAC National Accelerator Lab., Menlo Park, CA (United States)
• Sponsoring Organization: USDOE Office of Science (US)
• DOE Contract Number: AC03-76SF00515
• OSTI ID: 826659
• Report Number(s): SLAC-R-685; TRN: US0403502
• Resource Relation: Other Information: PBD: 5 Jan 2004
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
DAUGHTER PRODUCTS
DECAY
IMPACT PARAMETER
LIFETIME
PHYSICS
STANFORD LINEAR COLLIDER
TAU PARTICLES