Abstract
The rare tau lepton decays to four explicitly identified hadrons have been studied with the CLEO detector at the Cornell Electron Storage Ring using (7.56 +/- 0.15) fb(-1) of data collected near root s=10.58 GeV. The first statistically significant measurements of B(tau(-)-> K(-)pi(+)pi(-)pi(0)nu(tau),excludingK(0))=(7.4 +/- 0.8 +/- 1.1)x10(-4) and B(tau(-)-> K(-)K(+)pi(-)pi(0)nu(tau))=(5.5 +/- 1.4 +/- 1.2)x10(-5) are presented, including the first observation of the decay tau(-)-> K(-)omega nu(tau) with branching fraction, (4.1 +/- 0.6 +/- 0.7)x10(-4). We publish the first upper limit for B(tau(-)-> K(-)K(+)K(-)pi(0)nu(tau))< 4.8(6.1)x10(-6) at 90% (95%) confidence level. We measure for the first time the invariant mass distributions, which together with the branching fraction measurements are important ingredients that can be used to extract the standard model parameters, the strange quark mass, and the Cabibbo-Kobayashi-Maskawa element V-us.
Published in:
Physical Review Letters 94,24 (2005) 241802;
Link to original published article:
http://dx.doi.org/10.1103/PhysRevLett.94.241802
Keywords
charged kaons;; detector;; library;; meson
Date of Version
January 2005
Recommended Citation
Arms, K.; Gan, K. K.; Severini, H.; Asner, D. M.; Dytman, S. A.; Love, W.; Mehrabyan, S.; Mueller, J. A.; Savinov, V.; Li, Z.; Lopez, A.; Mendez, H.; Ramirez, J.; Huang, G. S.; Miller, D. H.; Pavlunin, V.; Sanghi, B.; Shibata, E. I.; Shipsey, I. P. J.; Adams, G. S.; Chasse, M.; Cravey, M.; Cummings, J. P.; Danko, I.; Napolitano, J.; Muramatsu, H.; Park, C. S.; Park, W.; Thayer, J. B.; Thorndike, E. H.; Coan, T. E.; Gao, Y. S.; Liu, F.; Stroynowski, R.; Artuso, M.; Boulahouache, C.; Blusk, S.; Butt, J.; Dambasuren, E.; Dorjkhaidav, O.; Li, J.; Menaa, N.; Mountain, R.; Nandakumar, R.; Redjimi, R.; Sia, R.; Skwarnicki, T.; Stone, S.; Wang, J. C.; Zhang, K.; Csorna, S. E.; Bonvicini, G.; Cinabro, D.; Dubrovin, M.; Bornheim, A.; Pappas, S. P.; Weinstein, A. J.; Briere, R. A.; Chen, G. P.; Ferguson, T.; Tatishvili, G.; Vogel, H.; Watkins, M. E.; Rosner, J. L.; Adam, N. E.; Alexander, J. P.; Berkelman, K.; Cassel, D. G.; Crede, V.; Duboscq, J. E.; Ecklund, K. M.; Ehrlich, R.; Fields, L.; Galik, R. S.; Gibbons, L.; Gittelman, B.; Gray, R.; Gray, S. W.; Hartill, D. L.; Heltsley, B. K.; Hertz, D.; Hsu, L.; Jones, C. D.; Kandaswamy, J.; Kreinick, D. L.; Kuznetsov, V. E.; Mahlke-Kruger, H.; Meyer, T. O.; Onyisi, P. U. E.; Patterson, J. R.; Peterson, D.; Pivarski, J.; Riley, D.; Ryd, A.; Sadoff, A. J.; Schwarthoff, H.; Shepherd, M. R.; Stroiney, S.; Sun, W. M.; Thayer, J. G.; Urner, D.; Wilksen, T.; Weinberger, M.; Athar, S. B.; Avery, P.; Breva-Newell, L.; Patel, R.; Potlia, V.; Stoeck, H.; Yelton, J.; Rubin, P.; Cawlfield, C.; Eisenstein, B. I.; Gollin, G. D.; Karliner, I.; Kim, D.; Lowrey, N.; Naik, P.; Sedlack, C.; Selen, M.; Williams, J.; Wiss, J.; Edwards, K. W.; Besson, D.; Pedlar, T. K.; Cronin-Hennessy, D.; Gao, K. Y.; Gong, D. T.; Kubota, Y.; Klein, T.; Lang, B. W.; Li, S. Z.; Poling, R.; Scott, A. W.; Smith, A.; Stepaniak, C. J.; Urheim, J.; Dobbs, S.; Metreveli, Z.; Seth, K. K.; Tomaradze, A.; Zweber, P.; Ernst, J.; and Mahmood, A. H., "Study of tau decays to four-hadron final states with kaons" (2005). Department of Physics and Astronomy Faculty Publications. Paper 107.
https://docs.lib.purdue.edu/physics_articles/107