Observation and Properties of L=1 B_1 and B_2* Mesons

Abstract

Excited B mesons B_1 and B_2* are observed directly for the first time as two separate states in fully reconstructed decays to B+(*) pi-. The mass of B_1 is measured to be (5720.6 +- 2.4 +- 1.4) MeV/c^2 and the mass difference DeltaM between B_2* and B_1 is (26.2 +- 3.1 +- 0.9) MeV/c^2, giving the mass of the B_2* as (5746.8 +- 2.4 +- 1.7) MeV/c^2. The production rate for B_1 and B_2* mesons is determined to be a fraction (13.9 +- 1.9 +- 3.2)% of the production rate of the B+ meson.

arXiv comment8 pages, 2 figures. Submitted to Phys. Rev. Lett

References in corpus (15)

• The Cosmological Parameters 2006
• Big-Bang nucleosynthesis (Particle Data Group mini-review)
• High-Energy-Physics Event Generation with PYTHIA 6.1
• The Upgraded D0 Detector
• Excited Heavy-Light Systems and Hadronic Transitions
• Mass spectrum of orbitally and radially excited heavy-light mesons in the relativistic quark model
• Direct Limits on the Bs Oscillation Frequency
• Properties of Orbitally Excited Heavy-Light Mesons
• The Muon System of the Run II D0 Detector
• Excited Heavy Mesons Beyond Leading Order in the Heavy Quark Expansion
• New Heavy-Light Mesons $Q\bar{q}$
• b-tagging in DELPHI at LEP
• Spectroscopy of Heavy Mesons Expanded in 1/m_Q
• Measurement of the Ratio of B+ and B0 Meson Lifetimes
• Investigation of the Decay of Orbitally-Excited B Mesons and First Measurement of the Branching Ratio BR(B*_J->B*pi(X))

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