Autor: |
E M, Aitala, S, Amato, J C, Anjos, J A, Appel, D, Ashery, S, Banerjee, I, Bediaga, G, Blaylock, S B, Bracker, P R, Burchat, R A, Burnstein, T, Carter, H S, Carvalho, N K, Copty, L M, Cremaldi, C, Darling, K, Denisenko, S, Devmal, A, Fernandez, G F, Fox, P, Gagnon, C, Gobel, K, Gounder, A M, Halling, G, Herrera, G, Hurvits, C, James, P A, Kasper, S, Kwan, D C, Langs, J, Leslie, B, Lundberg, J, Magnin, A, Massafferri, S, MayTal-Beck, B, Meadows, J R, de Mello Neto, D, Mihalcea, R H, Milburn, J M, de Miranda, A, Napier, A, Nguyen, A B, d'Oliveira, K, O'Shaughnessy, K C, Peng, L P, Perera, M V, Purohit, B, Quinn, S, Radeztsky, A, Rafatian, N W, Reay, J J, Reidy, A C, dos Reis, H A, Rubin, D A, Sanders, A K, Santha, A F, Santoro, A J, Schwartz, M, Sheaff, R A, Sidwell, A J, Slaughter, M D, Sokoloff, J, Solano, N R, Stanton, R J, Stefanski, K, Stenson, D J, Summers, S, Takach, K, Thorne, A K, Tripathi, S, Watanabe, R, Weiss-Babai, J, Wiener, N, Witchey, E, Wolin, S M, Yang, D, Yi, S, Yoshida, R, Zaliznyak, C, Zhang |
Rok vydání: |
2000 |
Zdroj: |
Physical review letters. 86(5) |
ISSN: |
0031-9007 |
Popis: |
From a sample of 1172 +/- 61 D(+)--pi(-)pi(+)pi(+) decays, we find gamma(D(+)--pi(-)pi(+)pi(+))/gamma(D(+)--K-pi(+)pi(+)) = 0.0311 +/- 0.0018(+0.0016)(-0.0026). Using a coherent amplitude analysis to fit the Dalitz plot of these decays, we find strong evidence that a scalar resonance of mass 478(+24)(-23) +/- 17 MeV/c(2) and width 324(+42)(-40) +/- 21 MeV/c(2) accounts for approximately half of all decays. |
Databáze: |
OpenAIRE |
Externí odkaz: |
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