Measurements of six-body hadronic decays of the D0 charmed meson

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, 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. Boschini, 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, E. Luiggi, H. Mendez, A. Paris, J. E. Ramirez, Y. Zhang, J. R. Wilson, T. Handler, R. Mitchell, A. D. Bryant, D. Engh, M. Hosack, W. E. Johns, M. Nehring, P. D. Sheldon, K. Stenson, E. W. Vaandering, M. Webster, M. Sheaff

Research output: Contribution to journalArticlepeer-review

Abstract

Using data collected by the FOCUS experiment at Fermilab, we report the discovery of the decay modes D0→K-π +π+π+π-π- and D0→π+π+π+π -π-π-. With a sample of 48±10 reconstructed D0→K-π+π +π+π-π- decays and 149±17 reconstructed D0→π+π +π+π-π-π- decays, we measure the following relative branching ratios: Γ(D 0→K-π+π+π +π-π-)/Γ(D0→K -π+π+π-)=(2.70±0. 58±0.38)×10-3,Γ(D0→π +π+π+π-π -π-)/Γ(D0→K-π +π+π-)=(5.23±0.59±1.35) ×10-3,Γ(D0→π+π +π+π-π-π-)/ Γ(D0→K-π+π +π+π-π-)=1.93±0. 47±0.48. The first errors are statistical and the second are systematic. The branching fraction of the Cabibbo suppressed six-body decay mode is measured to be a factor of two higher than the branching fraction of the Cabibbo favored six-body decay mode.

Original languageEnglish (US)
Pages (from-to)21-26
Number of pages6
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume586
Issue number1-2
DOIs
StatePublished - Apr 22 2004
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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