Measurement of the D/sup 0/ and D/sup +/ lifetimes

Journal Article · Sat Nov 01 00:00:00 EST 1986 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.34.2601· OSTI ID:7104484

Gladney, L; Jaros, J A; Ong, R A; Barklow, T; Boyarski, A M; Breidenbach, M; Burchat, P; Burke, D L; Dorfan, J M; Feldman, G J

We have used a high-resolution drift chamber in the Mark II detector at the SLAC e/sup +/e/sup -/ storage ring PEP to measure the lifetimes of the D/sup 0/ and D/sup +/ mesons produced in e/sup +/e/sup -/ annihilations at 29 GeV. Based on a sample of 74 decays for the D/sup 0/ mesons and 23 decays for the D/sup +/ mesons, the lifetimes are found to be tau/sub D//sub =/ = (4.7/sub -0.8//sup +0.9/) +- 0.5 x 10/sup -13/ sec and tau/sub D//sub =/ = (8.9/sub -2.7//sup +3.8/) +- 1.3 x 10/sup -13/ sec. This leads to a ratio of lifetimes tau/sub D//sub =//tau/sub =/ = 1.9/sub -0.7/ /sup +0.9/ +- 0.3. .AE

• Research Organization: SLAC National Accelerator Lab., Menlo Park, CA (United States)
• DOE Contract Number: AC03-76SF00515; AC03-76SF00098; AC02-76ER03064
• OSTI ID: 7104484
• Journal Information: Phys. Rev. D; (United States), Vol. 34:9
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
D MESONS
LIFETIME
PARTICLE PRODUCTION
ELECTRON-POSITRON INTERACTIONS
ANNIHILATION
BHABHA SCATTERING
COULOMB SCATTERING
DRIFT CHAMBERS
EXPERIMENTAL DATA
GEV RANGE 10-100
LUMINOSITY
PEP STORAGE RINGS
BASIC INTERACTIONS
BOSONS
CHARM PARTICLES
CHARMED MESONS
DATA
ELASTIC SCATTERING
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
GEV RANGE
HADRONS
INFORMATION
INTERACTIONS
LEPTON-LEPTON INTERACTIONS
MEASURING INSTRUMENTS
MESONS
MULTIWIRE PROPORTIONAL CHAMBERS
NUMERICAL DATA
OPTICAL PROPERTIES
PARTICLE INTERACTIONS
PHYSICAL PROPERTIES
PROPORTIONAL COUNTERS
PSEUDOSCALAR MESONS
RADIATION DETECTORS
SCATTERING
STORAGE RINGS
645102* - High Energy Physics- Particle Interactions & Properties-Experimental- Weak Interactions & Properties