Observation of a Resonancelike Structure in the π +- ψ ' Mass Distribution in Exclusive B→Kπ +- ψ ' Decays

  title={Observation of a Resonancelike Structure in the $\pi$ +- $\psi$ ' Mass Distribution in Exclusive B→K$\pi$ +- $\psi$ ' Decays},
  author={B. C. Choi and Stephen Lars Olsen and et al.},
  journal={Physical Review Letters},
Reference EPFL-ARTICLE-154575doi:10.1103/PhysRevLett.100.142001View record in Web of Science Record created on 2010-11-05, modified on 2017-12-10 

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Particle Data Group)

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for the BaBar Collaboration

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The θ B distribution has a sin 2 θ B dependence for e + e − → BB and is flat for continuum background events

    ) ; E . Braaten and M . Kusunoki , Phys . Rev . D 69 , 114012 2004 ) ; E . S . Swanson

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    This assumes equal branching fractions for B 0 and B + mesons

      In this letter the inclusion of the charge conjugate mode is always implied. The ψ ′ is sometimes denoted as ψ(2S)