Measurement of the energy dependence of the e + e → BB¯ , BB¯ and B exclusive cross sections

The Belle Collaboration

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Abstract

We report the first measurement of the exclusive cross sections e+e → BB¯ , e+e → BB¯ , and e+e → B in the energy range from 10.63 GeV to 11.02 GeV. The B mesons are fully reconstructed in a large number of hadronic final states and the three channels are identified using a beam-constrained-mass variable. The shapes of the exclusive cross sections show oscillatory behavior with several maxima and minima. The results are obtained using data collected by the Belle experiment at the KEKB asymmetric-energy e+e collider. [Figure not available: see fulltext.]

Original languageEnglish
Article number137
JournalJournal of High Energy Physics
Volume2021
Issue number6
DOIs
StatePublished - Jun 2021

Keywords

  • Particle and resonance production
  • Quarkonium
  • Spectroscopy
  • e-e Experiments

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