Study of the Cabibbo-suppressed decay modes D0 → π-π+ and D0 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, M. Wahl, 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, A. Rahimi, J. Wiss, R. Gardner, A. Kryemadhi, C. 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, 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. Milazzo, 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. Quinones, W. Xiong, Y. Zhang, J. R. Wilson, T. Handler, R. Mitchell, D. Engh, M. Hosack

Research output: Contribution to journalArticlepeer-review


Using data from the FOCUS (E831) experiment at Fermilab, we present a new measurement for the branching ratios of the Cabibbo-suppressed decay modes D0 → π-π+ and D0 → K-K+. We measured: Γ(D0 → K-K+)/Γ(D0 → π-π+) = 2.81 ± 0.10(stat) ± 0.06(syst), Γ(D0 → K-K+)/Γ(D0 → K-π+) = 0.0993 ± 0.0014(stat) ± 0.0014(syst), and Γ(D0 → π-π+)/Γ(D0 → K-π+) = 0.0353 ± 0.0012(stat) ± 0.0006(syst). These values have been combined with other experimental data to extract the ratios of isospin amplitudes and the phase shifts for the D → K K and D → ππ decay channels.

Original languageEnglish (US)
Pages (from-to)167-173
Number of pages7
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Issue number3-4
StatePublished - Feb 6 2003
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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