Study of K* production in tau decay

Goldberg, M.; Haupt, T.; Horwitz, N.; Jain, V.; Mestayer, M.D.; Moneti, G.C.; Rozen, Y.; Rubin, P.; Sharma, V.; Skwarnicki, T.

doi:10.1016/0370-2693(90)90256-6

Study of K* production in tau decay

CLEO

Collaboration

•

M. Goldberg
(
- Syracuse U.
)

Jul, 1990

6 pages

Published in:

Phys.Lett.B 251 (1990) 223-228

Published: 1990

DOI:

10.1016/0370-2693(90)90256-6

PDG:

{{\mathit \tau}^{-}}

\rightarrow

{{\mathit K}^{*}{(892)}^{-}}{}\geq{}

0 neutrals

{}\geq{}0{{\mathit K}_L^0}

{{\mathit \nu}_{{{\tau}}}}

Report number:

CLNS-90-997,
CLEO-90-7

Experiments:

CESR-CLEO,
CLEO

reference search23 citations

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Abstract: (Elsevier)

We report on a study of charged and neutral K ∗ production in tau decay. We obtain a branching ratio value BR (τ − → K ∗- ν τ X 0 ) = (1.43±0.11±0.13)% where X 0 designates possible unobserved neutral particles (charge conjugate modes are implicit). We observe the first signals for inclusive K ∗0 and K̄ ∗0 production in τ − decay, and determine the inclusive branching ratios τ − →K ∗0 K − ν τ X 0 and τ − K ̄ ∗0 π − ν τ X 0 to be (0.32±0.08±0.12)% and (0.38±0.11±0.13)%, respectively. We have searched for the decay τ − → K 0 K − ν τ X 0 and set a limit of 8 × 10 −3 at 90% confidence level.

electron positron: colliding beams
colliding beams: electron positron
electron positron: annihilation
annihilation: electron positron
tau: pair production
pair production: tau
tau: semileptonic decay
semileptonic decay: tau
decay: inclusive reaction
inclusive reaction: decay