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Leptonic decay of the Ï (1S) meson at third order in QCD

  • Martin Beneke
  • , Yuichiro Kiyo
  • , Peter Marquard
  • , Alexander Penin
  • , Jan Piclum
  • , Dirk Seidel
  • , Matthias Steinhauser
  • RWTH Aachen University
  • Juntendo University
  • Deutsches Elektronen-Synchrotron (DESY)
  • University of Alberta
  • Technical University of Munich
  • University of Siegen
  • Humanoid Technologies Lab (H2T)

Research output: Contribution to journalArticlepeer-review

54 Scopus citations

Abstract

We present the complete next-to-next-to-next-to-leading order short-distance and bound-state QCD correction to the leptonic decay rate (I(1S).-) of the lowest-lying spin-1 bottomonium state. The perturbative QCD prediction is compared to the measurement Î"((1S) e+e-)=1.340(18) keV.

Original languageEnglish
Article number151801
JournalPhysical Review Letters
Volume112
Issue number15
DOIs
StatePublished - 16 Apr 2014

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