We analyze the three-body charmless decay B ±→K ±K ±K using a sample of 226.0±2.5 million BB̄ pairs collected by the BABAR detector. We measure the total branching fraction and CP asymmetry to be B=(35.2±0.9±1.6) ×10 -6 and A CP=(-1.7±2.6±1.5)%. We fit the Dalitz plot distribution using an isobar model and measure the magnitudes and phases of the decay coefficients. We find no evidence of CP violation for the individual components of the isobar model. The decay dynamics is dominated by the K +K - S-wave, for which we perform a partial-wave analysis in the region m(K +K -)<2GeV/c2. Significant production of the f 0(980) resonance, and of a spin zero state near 1.55GeV/c2 are required in the isobar model description of the data. The partial-wave analysis supports this observation. © 2006 The American Physical Society.

Aubert, B., Barate, R., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., et al. (2006). Dalitz plot analysis of the decay B ±→K ±K ±K. PHYSICAL REVIEW D, 74(3), 1-10 [10.1103/PhysRevD.74.032003].

Dalitz plot analysis of the decay B ±→K ±K ±K

PATRIGNANI, CLAUDIA;
2006

Abstract

We analyze the three-body charmless decay B ±→K ±K ±K using a sample of 226.0±2.5 million BB̄ pairs collected by the BABAR detector. We measure the total branching fraction and CP asymmetry to be B=(35.2±0.9±1.6) ×10 -6 and A CP=(-1.7±2.6±1.5)%. We fit the Dalitz plot distribution using an isobar model and measure the magnitudes and phases of the decay coefficients. We find no evidence of CP violation for the individual components of the isobar model. The decay dynamics is dominated by the K +K - S-wave, for which we perform a partial-wave analysis in the region m(K +K -)<2GeV/c2. Significant production of the f 0(980) resonance, and of a spin zero state near 1.55GeV/c2 are required in the isobar model description of the data. The partial-wave analysis supports this observation. © 2006 The American Physical Society.
2006
Aubert, B., Barate, R., Bona, M., Boutigny, D., Couderc, F., Karyotakis, Y., et al. (2006). Dalitz plot analysis of the decay B ±→K ±K ±K. PHYSICAL REVIEW D, 74(3), 1-10 [10.1103/PhysRevD.74.032003].
Aubert, B; Barate, R.; Bona, M.; Boutigny, D.; Couderc, F.; Karyotakis, Y.; Lees, J.P.; Poireau, V.; Tisserand, V.; Zghiche, A.; Grauges, E.; Palano, ...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/551428
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