Loading...
First observation of the decay tau(-)-> K*(-)eta nu(tau)
Ammar, Raymond G. Baringer, Philip S. Bean, Alice Besson, David Zeke Coppage, Don Darling, C. Davis, Robin E. P. Kotov, S. Kravchenko, I. Kwak, Nowhan
Ammar, Raymond G.
Baringer, Philip S.
Bean, Alice
Besson, David Zeke
Coppage, Don
Darling, C.
Davis, Robin E. P.
Kotov, S.
Kravchenko, I.
Kwak, Nowhan
Citations
Altmetric:
Abstract
The decay tau(-) --> K*(-) eta nu(tau) has been observed with the CLEO II detector. The K*(-) is reconstructed in two decay channels, K*(-) -->, KSpi- --> pi(-)pi(+)pi(-) and K*(-) --> K- pi(0). The eta is reconstructed from the decay eta --> gamma gamma. The measured branching fraction is B(tau(-) --> K- pi(0)eta nu(tau)) = (2.9 +/- 0.8 +/- 0.3) x 10(-4). We also measure the inclusive branching fractions without requiring the K* resonance, B(tau(-) --> K(S)pi(-) eta nu(tau)) = (1.10 +/- 0.35 +/- 0.11) x 10(-4) and B(tau(-) --> K- pi(0)eta nu(tau)) = (1.77 +/- 0.56 +/- 0.71) x 10(-4). The results indicate that the K*(-) resonance dominates the K(S)pi(-) mass spectrum.
Description
Date
1999-01
Journal Title
Journal ISSN
Volume Title
Publisher
AMERICAN PHYSICAL SOC
Files
Loading...
p281_1.pdf
Adobe PDF, 164.84 KB
Research Projects
Organizational Units
Journal Issue
Keywords
Citation
Bishai, M, Chen, S, et al. First observation of the decay tau(-)-> K*(-)eta nu(tau). PHYSICAL REVIEW LETTERS. January 1999. 82(2) : 281-285