Study Of The D-S(+) -> Pi(-)Pi(+)Pi(+) Decay And Measurement Of F(0) Masses And Widths

E. Aitala,S. Amato,J. Anjos,J. Appel,D. Ashery,S. Banerjee,I. Bediaga,G. Blaylock,S. Bracker, P. Burchat,R. Burnstein,T. Carter,H. Carvalho,N. Copty, L. Cremaldi,C. Darling, K. Denisenko, S. Devmal,A. Fernandez,G. Fox,P. Gagnon,C. Gobel,K. Gounder,A. Halling,G. Herrera,G. Hurvits,C. James,P. Kasper,S. Kwan,D. Langs, J. Leslie,B. Lundberg,J. Magnin,A. Massafferri,S. MayTal-Beck,B. Meadows,J. de Mello Neto,D. Mihalcea,R. Milburn,J. de Miranda, A. Napier,A. Nguyen,A. d'Oliveira,K. O'Shaughnessy,K. Peng,L. Perera,M. Purohit,B. Quinn,S. Radeztsky,A. Rafatian,N. Reay,J. Reidy,A. dos Reis,H. Rubin,D. Sanders, A. Santha, A. Santoro,A. Schwartz,M. Sheaff,R. Sidwell,A. Slaughter,M. Sokoloff,J. Solano,N. Stanton,R. Stefanski, K. Stenson,D. Summers,S. Takach,K. Thorne,A. Tripathi,S. Watanabe,R. Weiss-Babai,J. Wiener,N. Witchey,E. Wolin,S. Yang,D. Yi,S. Yoshida,R. Zaliznyak,C. Zhang

PHYSICAL REVIEW LETTERS（2001）

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摘要

From a sample of 848 +/- 44 D-s(+) --> pi (-) pi (+) pi (+) decays, we find Gamma (D-s(+) --> pi (-) pi (+) pi (+))/Gamma (D-s(+)--> phi pi (+)) = 0.245 +/- 0.028(-0.012)(+0.019). Using a Dalitz plot analysis of this three body decay, we find significant contributions from the channels rho (0)(770)pi (+), rho (0)(1450)pi (+,) f(0)(980)pi (+), f(2)(1270)pi (+), and f(0)(1370)pi (+). We also present the values obtained for masses and widths of the resonances f(0)(980) and f(0)(1370).

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