Loading...
Measurement of the decay tau(-) -> pi(-) pi(+) pi(-) 2pi(0)nu-tau
Ammar, Raymond G. Ball, S. Baringer, Philip S. Coppage, Don Copty, N. Davis, Robin E. P. Hancock, N. Kelly, M. Kwak, Nowhan Lam, H.
Ammar, Raymond G.
Ball, S.
Baringer, Philip S.
Coppage, Don
Copty, N.
Davis, Robin E. P.
Hancock, N.
Kelly, M.
Kwak, Nowhan
Lam, H.
Citations
Altmetric:
Abstract
The decay tau- --> pi-pi+pi-2pi0nu(tau) has been observed in e+e- annihilation using the CLEO II detector at the Cornell Electron Storage Ring. In a data sample collected at square-root s is similar to 10.6 GeV, 668 +/- 38 decay candidates have been identified by exclusively reconstructing two pi0,s accompanying three charged particles, which are assumed to be pions. Normalizing to the number of tau pairs detected with one charged particle recoiling against three charged particles, this yields a branching ratio of B3pi2pi0 = (0.48 +/- 0.04 +/- 0.04)%. A signal of 430 +/- 33 events for the decay tau- --> pi-omegapi0nu(tau) has also been observed, corresponding to a branching ratio of B(piomegapi)0=(0.39 +/- 0.04 +/- 0.04)%.
Description
Date
1993-09
Journal Title
Journal ISSN
Volume Title
Publisher
AMERICAN PHYSICAL SOC
Collections
Research Projects
Organizational Units
Journal Issue
Keywords
Citation
BORTOLETTO, D, BROWN, DN, et al. Measurement of the decay tau(-) -> pi(-) pi(+) pi(-) 2pi(0)nu-tau. PHYSICAL REVIEW LETTERS. September 1993. 1791-1795