Measurement of the D⁺ and D_s⁺ decays into K⁺K^-K⁺

Authors

J. M. Link, University of California, DavisFollow
M. Reyes, University of California, DavisFollow
P. M. Yager, University of California, DavisFollow
J. C. Anjos, Centro Brasileiro de Pesquisas FísicasFollow
I. Bediaga, Centro Brasileiro de Pesquisas FísicasFollow
C. Göbel, Centro Brasileiro de Pesquisas FísicasFollow
J. Magnin, Centro Brasileiro de Pesquisas FísicasFollow
A. Massafferri, Centro Brasileiro de Pesquisas FísicasFollow
Abaz Kryemadhi, Messiah UniversityFollow
I. M. Pepe, Centro Brasileiro de Pesquisas FísicasFollow

Document Type

Article

Publication Date

8-15-2002

Abstract

We present the first clear observation of the doubly Cabibbo suppressed decay D+ → K-K+K+ and the first observation of the singly Cabibbo suppressed decay Ds+ → K-K+K+. These signals have been obtained by analyzing the high statistics sample of photoproduced charm particles of the FOCUS (E831) experiment at Fermilab. We measure the following relative branching ratios: Γ(D+ → K-K+K+)/Γ(D+ → K-π+π+) = (9.49 ± 2.17 ± 0.22) × 10-4 and Γ(Ds+ → K-K+K+)/Γ(Ds+ → K-K+π+) = (8.95 ± 2.12-2.31+2.24) × 10-3, where the first error is statistical and the second is systematic. © 2002 Elsevier Science B.V. All rights reserved.

Recommended Citation

Link, J. M.; Reyes, M.; Yager, P. M.; Anjos, J. C.; Bediaga, I.; Göbel, C.; Magnin, J.; Massafferri, A.; Kryemadhi, Abaz; and Pepe, I. M., "Measurement of the D⁺ and D_s⁺ decays into K⁺K^-K⁺" (2002). Educator Scholarship & Departmental Newsletters. 213.
https://mosaic.messiah.edu/mps_ed/213