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Published April 17, 1989 | Version Published
Journal Article Open

Measurement of the Branching Fractions for D^0 → π^-e^+v_e and D^0 → + K^-e^+V_e and Determination of │V_(cd)/V_(cs)│^2

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Abstract

Measurements of the exclusive branching fractions B(D^0→π^-e^+ν_e) and B(D^0→K^-e^+ν_e), using data collected at the ψ(3770) with the Mark III detector at the SLAC e^+e^- storage ring SPEAR, are used to determine the ratio of the Kobayashi-Maskawa matrix elements │V_(cd)/V_(cs)│^2 =0.057_(-0.015)^(+0.038)±0.005.

Additional Information

© 1989 The American Physical Society. Received 30 December 1988; published in the issue dated 17 April 1989. We gratefully acknowledge the dedicated efforts of the SPEAR storage ring and linear accelerator operating staffs, and the continued support of the Directorate of the Stanford Linear Accelerator Center for the SPEAR high-energy physics program. This work was supported in part by the Department of Energy, under Contracts No. DE-AC03-76SF00515, No. DE-AC02-76ER01195, No. DE-AC03-81ER40050, No. DE-AM03-76SF00034, and No. DE-AC02-87ER40318, and by the National Science Foundation.

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Eprint ID
31414
Resolver ID
CaltechAUTHORS:20120510-114724628

Funding

Department of Energy (DOE)
DE-AC03-76SF00515
Department of Energy (DOE)
DE-AC02-76ER01195
Department of Energy (DOE)
DE-AC03-81-ER40050
Department of Energy (DOE)
DE-AM03-76SF00034
Department of Energy (DOE)
DE-AC02-87ER40318
NSF

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Created
2012-05-11
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Updated
2021-11-09
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