Study of the doubly and singly Cabibbo suppressed decays D +→K+π+π- and D s+→K+π+π-

J. M. Link, P. M. Yager, J. C. Anjos, I. Bediaga, C. Göbel, A. A. Machado, J. Magnin, A. Massafferri, J. M. de Miranda, I. M. Pepe, E. Polycarpo, A. C. dos Reis, S. Carrillo, E. Casimiro, E. Cuautle, A. Sánchez-Hernández, C. Uribe, F. Vázquez, L. Agostino, L. CinquiniJ. P. Cumalat, B. O'Reilly, I. Segoni, K. Stenson, 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, M. Wang, L. Benussi, M. Bertani, S. Bianco, F. L. Fabbri, A. Zallo, M. Reyes, C. Cawlfield, D. Y. Kim, A. Rahimi, J. Wiss, R. Gardner, A. Kryemadhi, Y. S. Chung, J. S. Kang, B. R. Ko, J. W. Kwak, K. B. Lee, K. Cho, H. Park, G. Alimonti, S. Barberis, M. Boschim, A. Cerutti, 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, D. Lopes Pegna, S. P. Ratti, C. Riccardi, P. Vitulo, H. Hernandez, A. M. Lopez, H. Mendez, A. Paris, J. Quinones, J. E. Ramirez, Y. Zhang, J. R. Wilson, T. Handler, R. Mitchell, A. D. Bryant, D. Engh, M. Hosack, W. E. Johns, E. Luiggi, M. Nehring, P. D. Sheldon, E. W. Vaandering, M. Webster, M. Sheaff

Research output: Contribution to journalArticlepeer-review

Abstract

Using data collected by the high energy photoproduction experiment FOCUS at Fermilab we study the doubly and singly Cabibbo suppressed decays D+ and Ds+→K+π+π -. Our measurements of Γ(D+→K +π+π-)/Γ(D+→K -π+π+) = 0.0065±0.0008±0. 0004 and Γ(Ds+→K+π +π-)/Γ(Ds+→K +K-π+) = 0.127±0.007±0.014 are based on samples of 189±24 D+ and 567±31 D s+ reconstructed events, respectively. We also present Dalitz plot analyses of the two decay channels; the amplitude analysis of the Ds+→K+π+π- mode is performed for the first time.

Original languageEnglish (US)
Pages (from-to)10-19
Number of pages10
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume601
Issue number1-2
DOIs
StatePublished - Nov 4 2004

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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