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Direct CP violation in B(-/+) --> ppK((*)+/-).

C Q Geng1, Y K Hsiao, J N Ng

  • 1Department of Physics, National Tsing Hua University, Hsinchu, Taiwan.

Physical Review Letters
|March 16, 2007
PubMed
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We investigated direct CP violation in B --> ppK decays. Our findings show these decays are key to detecting CP violation in charged B systems, with a predicted asymmetry of 22%.

Area of Science:

  • Particle Physics
  • High Energy Physics
  • Quantum Chromodynamics

Background:

  • Direct CP violation in the charged B system lacks conclusive experimental signatures.
  • Three-body baryonic B decays offer a promising avenue for exploring CP violation.
  • The Standard Model provides a theoretical framework for understanding these decays.

Purpose of the Study:

  • To investigate direct CP violation in B --> ppK((*)+/-) decays within the Standard Model.
  • To assess the potential of these decays as probes for CP violation in the charged B system.
  • To compare theoretical predictions with experimental data, such as that from the BABAR Collaboration.

Main Methods:

  • Theoretical calculations within the Standard Model framework.
  • Analysis of three-body baryonic B decays.

Related Experiment Videos

  • Computation of direct CP-violating asymmetries.

    • Main Results:

    • Direct CP violation in B --> ppK((*)+/-) decays is predicted to be significant.
    • The calculated direct CP-violating asymmetry is approximately 22%.
    • This theoretical prediction aligns with recent experimental observations.

    Conclusions:

    • B --> ppK((*)+/-) decays are important tools for detecting direct CP violation in the charged B system.
    • The study provides theoretical support for experimental findings, particularly from the BABAR Collaboration.
    • Further investigation of these decays can shed light on fundamental CP symmetry tests in particle physics.