A Dalitz plot analysis of approximately 12 500 D-0 events reconstructed in the hadronic decay D-0->(K) over bar (K+K-)-K-0 is presented. This analysis is based on a data sample of 91.5 fb(-1) collected with the BABAR detector at the PEP-II asymmetric-energy e(+)e(-) storage rings at SLAC running at center-of-mass energies on and 40 MeV below the Upsilon(4S) resonance. The events are selected from e(+)e(-)-> c (c) over bar annihilations using the decay D*+-> D(0)pi(+). The following ratio of branching fractions has been obtained: BR=Gamma(D-0->(K) over bar (K+K-)-K-0)Gamma(D-0->(K) over bar (0)pi(+)pi(-))=(15.8 +/- 0.1(stat.)+/- 0.5(syst.))x10(-2). Estimates of fractions and phases for resonant and nonresonant contributions to the Dalitz plot are also presented. The a(0)(980)->(K) over barK projection has been extracted with little background. A search for CP asymmetries on the Dalitz plot has been performed.

Dalitz plot analysis of D-0 ->(K)over-bar(0)K(+)K(-) / Aubert, B., Barate, R., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J.p., Poireau, V., Tisserand, V., Zghiche, A., Grauges, E., Palano, A., Pappagallo, M., Pompili, A., Chen, J.c., Qi, N.d., Rong, G., Wang, P., Zhu, Y.s., Eigen, G., Ofte, I., et al.. - In: PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY. - ISSN 1550-7998. - 72:(2005). [10.1103/physrevd.72.052008]

Dalitz plot analysis of D-0 ->(K)over-bar(0)K(+)K(-)

DEL RE, Daniele;RAHATLOU, SHAHRAM;BELLINI, Fabio;CAVOTO, Gianluca;FACCINI, Riccardo;FERRONI, Fernando;GASPERO, Mario;VOENA C;
2005

Abstract

A Dalitz plot analysis of approximately 12 500 D-0 events reconstructed in the hadronic decay D-0->(K) over bar (K+K-)-K-0 is presented. This analysis is based on a data sample of 91.5 fb(-1) collected with the BABAR detector at the PEP-II asymmetric-energy e(+)e(-) storage rings at SLAC running at center-of-mass energies on and 40 MeV below the Upsilon(4S) resonance. The events are selected from e(+)e(-)-> c (c) over bar annihilations using the decay D*+-> D(0)pi(+). The following ratio of branching fractions has been obtained: BR=Gamma(D-0->(K) over bar (K+K-)-K-0)Gamma(D-0->(K) over bar (0)pi(+)pi(-))=(15.8 +/- 0.1(stat.)+/- 0.5(syst.))x10(-2). Estimates of fractions and phases for resonant and nonresonant contributions to the Dalitz plot are also presented. The a(0)(980)->(K) over barK projection has been extracted with little background. A search for CP asymmetries on the Dalitz plot has been performed.
2005
01 Pubblicazione su rivista::01a Articolo in rivista
Dalitz plot analysis of D-0 ->(K)over-bar(0)K(+)K(-) / Aubert, B., Barate, R., Boutigny, D., Couderc, F., Karyotakis, Y., Lees, J.p., Poireau, V., Tisserand, V., Zghiche, A., Grauges, E., Palano, A., Pappagallo, M., Pompili, A., Chen, J.c., Qi, N.d., Rong, G., Wang, P., Zhu, Y.s., Eigen, G., Ofte, I., et al.. - In: PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY. - ISSN 1550-7998. - 72:(2005). [10.1103/physrevd.72.052008]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/231590
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