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 journalArticle

Abstract

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
Volume555
Issue number3-4
DOIs
StatePublished - Feb 6 2003

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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    Link, J. M., Reyes, M., Yager, P. M., Anjos, J. C., Bediaga, I., Göbel, C., Magnin, J., Massafferri, A., De Miranda, J. M., Pepe, I. M., Dos Reis, A. C., Carrillo, S., Casimiro, E., Cuautle, E., Sánchez-Hernández, A., Uribe, C., Vázquez, F., Agostino, L., Cinquini, L., ... Hosack, M. (2003). Study of the Cabibbo-suppressed decay modes D0 → π-π+ and D0 K-K+. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 555(3-4), 167-173. https://doi.org/10.1016/S0370-2693(03)00053-4