Study of the decay D0-->K- K+pi-pi+

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,Thomas Carter,H Da Silva Carvalho,N Copty,L Cremaldi,C Darling,K Denisenko,A Rodriguez Fernandez,G F Fox,Pauline Gagnon,C Gobel,K Gounder,A M Halling,G Herrera,G Hurvits,C James,P A Kasper,Simon Wing Lok Kwan,D C Langs,J R Leslie,B Lundberg, S Maytalbeck,B T Meadows,Joao R T De Mello Neto,R H Milburn,Jussara M De Miranda,A Napier,Andien Nguyen,A B Doliveira,K Oshaughnessy,K C Peng, Lalith Perera,M V Purohit,B Quinn,S Radeztsky,A Rafatian,N W Reay,J Reidy,Antonio D Reis,H A Rubin,D A Sanders,A K S Santha,Armando Santoro,A J Schwartz,M Sheaff,R A Sidwell,A J Slaughter, M D Sokoloff,J Solano,N R Stanton,Kevin Stenson,D J Summers,S F Takach,Kip S Thorne,A K Tripathi,Shin Watanabe,R Weissbabai,J Wiener,N Witchey,E Wolin,Dechang Yi,S Yoshida,R Zaliznyak,C C Zhang

Physics Letters B（1998）

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摘要

Using data from Fermilab fixed-target experiment E791, we measure the branching ratio for D-0 --> K-K+ pi(-)pi(+) and its resonant components. We find Gamma(D-0 --> K-K+ pi(-)pi(+))/Gamma(D-0 --> K- pi(+)pi(-)pi(+))=(3.13 +/- 0.37 +/- 0.36)%. A coherent amplitude analysis is used to estimate the resonant components. We measure the ratios Gamma(D-0 --> f)/Gamma(D-0 --> K- pi(+)pi(-)pi(+)) to be (2.0 +/- 0.9 +/- 0.8)% for f = phi rho(0), (0.9 +/- 0.4 +/- 0.5)% for f = phi pi(+)pi(-), < 2.0% at the 90% CL for f = K-*0(892)(K) over bar(*0)(892), and < 1.0% at the 90% CL for f = <(K)over bar(*0)>(892)K(+)pi(-) or K-*0(892)K(-)pi(+). (C) 1998 Published by Elsevier Science B.V.

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