Measurement of the decays B--> phiK and B--> phiK*

Area of Science:

• Particle Physics
• High-Energy Physics
• Experimental Physics

Background:

• B mesons are fundamental particles in particle physics.
• Studying their decays provides insights into fundamental interactions.
• Rare decays are crucial for testing the Standard Model.

Purpose of the Study:

• To measure branching fractions of B to phi K and B to phi K(*) decays.
• To set limits on B to phi pi decays.
• To contribute to the understanding of B meson physics.

Main Methods:

• Analysis of over 45 million B mesons.
• Data collected using the BABAR detector at the PEP-II collider.
• Statistical analysis to determine branching fractions and limits.

Main Results:

• Measured branching fractions for B+ to phi K+, B0 to phi K0, B+ to phi K(*+), and B0 to phi K(*0).
• Reported an upper limit for B+ to phi pi(+) decay.
• Results provide precise measurements of these rare decay modes.

Conclusions:

• The study successfully measured branching fractions for several B meson decays.
• The findings contribute valuable data for theoretical models in particle physics.
• Further studies can build upon these results to explore New Physics.