$τ ν$ Decay Signature for Detecting $F^{\pm}$ and $B^{\pm}$ Mesons in $e^{+} e^{-}$ Collisions

Publisher Website

14 July 1980

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 45 (2) , 83-85
https://doi.org/10.1103/physrevlett.45.83

Abstract

The decay modes

F (c \bar{s})

,

B (b \bar{u}, b \bar{c}) \to τ ν

are proposed as triggers for

e^{+} e^{-} \to F \bar{F}

,

B \bar{B}

production. Decay branching fractions of order

B (F) ≃ 15 %

and

B (B) ≃ (1 to 2) %

are estimated. The sequential

τ \to e ν \bar{ν}

,

μ ν \bar{ν}

decays provide clear signatures, with the hadronic decay of the associated

F

,

B

carrying exactly half the energy. These triggers can be extended to study

F^{*}

and

B^{*}

resonance production and also to exploit the

τ \to π ν

,

ρ ν

,

A_{1} ν

decays.

Keywords

This publication has 12 references indexed in Scilit:

Mechanism for the Difference in Lifetimes of Charged and Neutral $D$ Mesons
Physical Review Letters, 1980
Lifetimes and branching fractions of mesons with heavy-quark constituents
Journal of Physics G: Nuclear Physics, 1979
Seeing the B mesons in hadronic collisions
Physics Letters B, 1979
Two-Body Hadronic Decays of $D$ Mesons
Physical Review Letters, 1979
Nonleptonic weak decays of bottom mesons
The European Physical Journal C, 1979
Constraints on Weak-Current Angles of the Six-Quark Model from the $K^{0} - {\bar{K}}^{0}$ System
Physical Review Letters, 1979
Bounds on Quark Mixing Angles in the Standard Six-Quark Model
Physical Review Letters, 1979
How to look for particles containingbquarks
Physical Review D, 1977
Sum Rules for Charmonium and Charmed Mesons in Quantum Chromodynamics
Physical Review Letters, 1977
CP-Violation in the Renormalizable Theory of Weak Interaction
Progress of Theoretical Physics, 1973