Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Observation of B --> J/psi K(1)(1270).

K Abe1, K Abe, I Adachi

  • 1High Energy Accelerator Research Organization (KEK), Tsukuba, Japan.

Physical Review Letters
|November 3, 2001
PubMed

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Observation of the Radiative Decay D_{s0}^{*}(2317)^{+}→D_{s}^{*+}γ.

Physical review letters·2026
Same author

First Search for B→X_{s}νν[over ¯] Decays.

Physical review letters·2026
Same author

Search for Feebly Interacting Particles in B Decays with Missing Energy at Belle.

Physical review letters·2026
Same author

ARM-ICG IN THE PREVENTION OF LYMPHEDEMA AFTER SURGICAL TREATMENT OF BREAST CANCER.

Georgian medical news·2026
Same author

Search for B^{0}→K^{*0}τ^{+}τ^{-} Decays at the Belle II Experiment.

Physical review letters·2025
Same author

Search for a Dark Higgs Boson Produced in Association with Inelastic Dark Matter at the Belle II Experiment.

Physical review letters·2025
Summary

Researchers observed the exclusive decay B to J/psi K(1)(1270) for the first time, measuring its branching fractions. This study provides new insights into B meson decays and particle physics.

Area of Science:

  • Particle Physics
  • High-Energy Physics
  • Quantum Chromodynamics

Background:

  • B meson decays are crucial for understanding the Standard Model.
  • Previous studies have explored various B meson decay modes.
  • The K(1)(1270) resonance is a key component in certain B meson decays.

Purpose of the Study:

  • To report the first observation of the exclusive decay B to J/psi K(1)(1270).
  • To measure the branching fractions for B(0) to J/psi K(0)(1)(1270) and B(+) to J/psi K(+)(1)(1270).
  • To investigate the presence of the B to J/psi K(1)(1400) decay mode.

Main Methods:

  • Analysis of 11.2 million BBbar meson pairs collected by the Belle detector.
  • Utilizing data from the KEKB asymmetric energy e(+)e(-) collider.

Related Experiment Videos

  • Statistical and systematic error analysis for measured branching fractions.

    • Main Results:

    • First observation of the exclusive decay B to J/psi K(1)(1270).
    • Measured branching fractions: B(B(0) to J/psi K(0)(1)(1270)) = (1.30 ± 0.34 ± 0.32) x 10(-3) and B(B(+) to J/psi K(+)(1)(1270)) = (1.80 ± 0.34 ± 0.39) x 10(-3).
    • These decays account for approximately 15% of B to J/psi X decays. No evidence for B to J/psi K(1)(1400) was found.

    Conclusions:

    • The observed B to J/psi K(1)(1270) decay provides significant data for particle physics models.
    • The measured branching fractions offer precise values for theoretical calculations.
    • The upper limit set for B to J/psi K(1)(1400) constrains new physics scenarios.