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Search for B ->tau nu and B -> K nu(nu)over-bar
Journal article   Peer reviewed

Search for B ->tau nu and B -> K nu(nu)over-bar

T E Browder, Y Li, J L Rodriguez, H Yamamoto, T Bergfeld, B I Eisenstein, J Ernst, G E Gladding, G D Gollin, R M Hans, …
Physical review letters, Vol.86(14), pp.2950-2954
02/04/2001
PMID: 11290080

Abstract

Physical Sciences Physics Physics, Multidisciplinary Science & Technology
We report results of a search for B --> tau nu in a sample of 9.7 x 10(6) charged B meson decays. We exclusively reconstruct the companion B decay to suppress background. We set an upper limit on the branching fraction B(B --> tau nu) < 8.4 X 10(-4) at 90% confidence level, We also establish B(B+/- --> K+/- nu <(nu )over bar >) < 2.4 X 10(-4) at 90% confidence level.

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