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Measurement of theD0,D+, andDs+meson lifetimes

D. Averill, D. Blockus, B. Brabson, J.-M. Brom, C. Jung, H. Ogren, D. R. Rust, M. Derrick, P. Kooijman, J. S. Loos, B. Musgrave, L. E. Price (+22 others)
1989 Physical Review D, Particles and fields  

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We report measurements of the lifetimes of the D, D+, and D, + (F+) mesons produced in e+e collisions at a center-of-mass energy of 29 GeV. The decay vertex distribution in the processes D~K rr+, D+~E n+n+, and . D+~Prr+ were made using a vertex chamber installed in the High Resolution Spectrometer at the SLAC storage ring PEP. The measured lifetimes arẽ 0=(4.4+1.0%0.6)X10 ' s, w +=(9.2+, '3+1.6)X10 " s, and r +=(3.1+20+0.5)X10 " s. S In addition the lifetime of the B meson is determined
more » ... g that only the B and not the B decays to a D*+ meson. The B is not directly observed. The lifetime w 0 is estimated indirectly to be (8.2+3 7+2.7) X 10
doi:10.1103/physrevd.39.123 pmid:9959476 fatcat:byana7xjhzcjdpkryfr6l4mr6y
Citation

D. Averill, D. Blockus, B. Brabson, J.-M. Brom, C. Jung, H. Ogren, D. R. Rust, M. Derrick, P. Kooijman, J. S. Loos, B. Musgrave, L. E. Price, J. Repond, K. Sugano, B. Cork, C. Akerlof, J. Chapman, D. Errede, M. T. Ken, D. I. Meyer, H. Neal, D. Nitz, R. Thun, R. Tschirhart, S. Abachi, P. Baringer, B. G. Bylsma, R. DeBonte, D. Koltick, E. H. Low, R. L. McIlwain, D. H. Miller, C. R. Ng, E. I. Shibata. "Measurement of theD0,D+, andDs+meson lifetimes." Physical Review D, Particles and fields 39.1 (1989) 123-137