Search for the decay D0+-

C. S. Mishra, C. N. Brown, W. E. Cooper, K. Gounder, D. M. Kaplan, V. M. Martin, R. S. Preston, J. Sa, V. Tanikella, L. D. Isenhower, M. E. Sadler, R. Schnathorst, L. M. Lederman, M. H. Schub, G. Gidal, M. S. Kowitt, K. B. Luk, T. A. Carey, R. E. Jeppesen, J. S. KapustinskyD. W. Lane, M. J. Leitch, J. W. Lillberg, P. L. McGaughey, J. M. Moss, J. C. Peng, R. L. Childers, C. W. Darden, P. K. Teng

Research output: Contribution to journalArticlepeer-review

Abstract

Using a silicon-microstrip detector array to identify secondary vertices occurring downstream of a short platinum target, we have searched for the decay D0+-. Normalized relative to the J/+- signal observed in the same data sample, for a 3.25-mm minimum decay distance our branching-ratio sensitivity is (4.81.4)×10-6 per event, and after background subtraction we observe -4.14.8 events. Using the statistical approach advocated by the Particle Data Group, we obtain a limit B(D0+-)<3.1×10-5 at 90% confidence, confirming with a different technique the limit previously obtained by Louis et al. The interpretation of the upper limit involves complex statistical issues; we present another approach which is more suitable for combining the results of different experiments.

Original languageEnglish (US)
Pages (from-to)R9-R12
JournalPhysical Review D
Volume50
Issue number1
DOIs
StatePublished - 1994
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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