Measurement of the B{sup 0} --> {phi}K*{sup 0} Decay Amplitudes

Technical Report · Mon Aug 09 00:00:00 EDT 2004

DOI:https://doi.org/10.2172/829722· OSTI ID:829722

Aubert, B ^[1]

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1. SLAC

With a sample of about 227 million B{bar B} pairs recorded with the BABAR detector at the PEP-II storage ring the authors perform a full angular analysis of the decay B{sup 0} --> {phi}K*{sup 0}(892). They measure the branching fraction to be (9.2 {+-} 0.9 {+-} 0.5) x 10{sup 06} and determine the fractions of longitudinal and parity-odd transverse contributions as f{sub L} = 0.52 {+-} 0.05 {+-} 0.02 and F{sub {perpendicular}} = 0.22 {+-} 0.05 {+-} 0.02, respectively. The phases of the parity-even and parity-odd transverse amplitudes relative to the longitudinal amplitude are found to be {phi}{sub {parallel}} = 2.34{sub -0.20}{sup +0.23} {+-} 0.05 rad and {phi}{sub {perpendicular}} = 2.47 {+-} 0.25 {+-} 0.05 rad, respectively. The authors measure five CP asymmetries which provide important limits on CP violation originating from new physics. They also observe the decay B{sup 0} --> {phi}K*{sup 0}(1430).

• Research Organization: Stanford Linear Accelerator Center, Menlo Park, CA (US)
• Sponsoring Organization: USDOE Office of Science (US)
• DOE Contract Number: AC03-76SF00515
• OSTI ID: 829722
• Report Number(s): SLAC-PUB-10564
• Country of Publication: United States
• Language: English

Related Subjects

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