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Related Experiment Videos

Search for factorization-suppressed B-->chi(c)K(*) decays.

B Aubert1, R Barate, D Boutigny

  • 1Laboratoire de Physique des Particules, F-74941 Annecy-le-Vieux, France.

Physical Review Letters
|May 21, 2005
PubMed

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Summary
This summary is machine-generated.

Researchers searched for specific B meson decays into chi(c0) and chi(c2) particles, which then decay into J/psi gamma. No significant signal was observed, leading to the establishment of upper limits for these decay branching fractions.

Area of Science:

  • Particle Physics
  • High-Energy Physics
  • Experimental Physics

Background:

  • B mesons are crucial for studying CP violation and fundamental particle interactions.
  • Factorization-suppressed decays offer unique insights into the Standard Model.
  • Previous searches have explored various B meson decay modes.

Purpose of the Study:

  • To search for the factorization-suppressed decays B-->chi(c0)K(*) and B-->chi(c2)K(*).
  • To investigate the decay modes where chi(c0) and chi(c2) decay into J/psi gamma.
  • To set upper limits on the branching fractions for these rare decays.

Main Methods:

  • Utilized a data sample of 124 x 10^6 BBbar events.
  • Data collected using the BABAR detector at the PEP-II storage ring.

Related Experiment Videos

  • Analysis focused on identifying specific decay signatures and reconstructing particle momenta.

    • Main Results:

    • No significant signal was observed for the targeted B-->chi(c0)K(*) and B-->chi(c2)K(*) decays.
    • Upper bounds for the branching fractions of these decays were established.
    • The results constrain theoretical models predicting these decay rates.

    Conclusions:

    • The absence of a signal suggests these specific decay modes are highly suppressed or forbidden.
    • The derived upper limits provide valuable data for refining theoretical predictions in particle physics.
    • Further studies with larger datasets may be needed to probe even rarer decay channels.