Dalitz plot analysis of D-s( )->pi( )pi(-)pi( )

作者：Aubert B^*; Bona M; Karyotakis Y; Lees J P; Poireau V; Prencipe E; Prudent X; Tisserand V; Garra Tico J; Grauges E; Lopez L; Palano A; Pappagallo M; Eigen G; Stugu B; Sun L; Abrams G S; Battaglia M; Brown D N; Jacobsen R G; Kerth L T; Kolomensky Yu G; Lynch G; Osipenkov I L; Ronan M T; Tackmann K; Tanabe T; Hawkes C M; Soni N; Watson A T; Koch H; Schroeder T; Asgeirsson D J; Fulsom B G; Hearty C; Mattison T S

来源：Physical Review D - Particles, Fields, Gravitation and Cosmology, 2009, 79(3): 032003.

DOI：10.1103/PhysRevD.79.032003

A Dalitz plot analysis of approximately 13 000 D-s( ) decays to pi( )pi(-)pi( ) has been performed. The analysis uses a 384 fb(-1) data sample recorded by the BABAR detector at the PEP-II asymmetric-energy e( )e(-) storage ring running at center of mass energies near 10.6 GeV. Amplitudes and phases of the intermediate resonances which contribute to this final state are measured. A high precision measurement of the ratio of branching fractions is performed: B(D-s( )->pi( )pi(-)pi( ))/B(D-s( )-> K K-pi( ))=0.199 /- 0.004 /- 0.009. Using a model-independent partial wave analysis, the amplitude and phase of the S wave have been measured.

• 出版日期2009-2
• 单位中国地震局