Measurement of the D+ and Ds+ decays into K+K-K+

J. M. Link, M. Reyes, P. M. Yager, J. C. Anjos, I. Bediaga, C. Göbel, J. Magnin, A. Massafferri, J. M. De Miranda, I. M. Pepe, A. C. Dos Reis, S. Carrillo, E. Casimiro, E. Cuautle, A. Sánchez-Hernández, C. Uribe, F. Vázquez, L. Agostino, L. Cinquini, J. P. CumalatB. O'Reilly, J. E. Ramirez, I. Segoni, J. N. Butler, H. W.K. Cheung, G. Chiodini, I. Gaines, P. H. Garbincius, L. A. Garren, E. Gottschalk, P. H. Kasper, A. E. Kreymer, R. Kutschke, L. Benussi, S. Bianco, F. L. Fabbri, A. Zallo, C. Cawlfield, D. Y. Kim, K. S. Park, A. Rahimi, J. Wiss, R. Gardner, A. Kryemadhi, K. H. Chang, Y. S. Chung, J. S. Kang, B. R. Ko, J. W. Kwak, K. B. Lee, K. Cho, H. Park, G. Alimonti, S. Barberis, A. Cerutti, M. Boschini, P. D'Angelo, M. DiCorato, P. Dini, L. Edera, S. Erba, M. Giammarchi, P. Inzani, F. Leveraro, S. Malvezzi, D. Menasce, M. Mezzadri, L. Moroni, D. Pedrini, C. Pontoglio, F. Prelz, M. Rovere, S. Sala, T. F. Davenport, V. Arena, G. Boca, G. Bonomi, G. Gianini, G. Liguori, M. M. Merlo, D. Pantea, S. P. Ratti, C. Riccardi, P. Vitulo, H. Hernandez, A. M. Lopez, H. Mendez, A. Paris, J. Quinones, W. Xiong, Y. Zhang, J. R. Wilson, T. Handler, R. Mitchell

Research output: Contribution to journalArticlepeer-review

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.

Original languageEnglish (US)
Pages (from-to)227-233
Number of pages7
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume541
Issue number3-4
DOIs
StatePublished - Aug 15 2002
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Fingerprint

Dive into the research topics of 'Measurement of the D<sup>+</sup> and D<sub>s</sub><sup>+</sup> decays into K<sup>+</sup>K<sup>-</sup>K<sup>+</sup>'. Together they form a unique fingerprint.

Cite this