Observation of a new DsJ meson in B+ -> D0-bar D0 K+ decays

2006/08/10 by K. Abe, The Belle Collaboration, Abe, K.
Engineering · Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #Superconducting Materials and Applications

paper · pdf · doi:10.48550/arxiv.hep-ex/0608031

openalex publication_date 2006/08/10 · openalex created_date 2024/04/10 · openalex updated_date 2026/07/28

Abstract

We report the observation of a new DsJ meson produced in B+ -> D0-bar DsJ -> D0-bar D0 K+. This state has a mass of M = 2715 +-11(stat) +11-14(syst) MeV/c², a width Gamma = 115 +-20(stat) +36-32(syst) MeV/c² and a spin-parity 1-. The results are based on an analysis of 449 million BB-bar events collected at the Upsilon(4S) resonance in the Belle detector at the KEKB asymmetric energy e+e- collider.

Related

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• Observation of the DsJ(2317) and DsJ(2460) in B decays
• A study of B0bar --> D(*)0 K(*)bar decays
• Measurement of B -> D_s K pi branching ratios
• Measurement of the D_(sJ)(2317) and D_(sJ)(2460) Properties in e⁺ e^- --> c c-bar Production