Probing for the charm content of B and y mesons

Chia Hung V. Chang*, Wei Shu Hou

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)


A slow J/ψ bump exists in the inclusive B→J/ψ+X spectrum, while the softness of the J/ψ spectrum in Υ(1S)→J/ψ+X decay is in strong contrast to expectations from the color octet mechanism. We propose intrinsic charm as the explanation: the former is due to B̄→J/ψDπ, with three charm quarks in the final state; the latter is just a small fraction of Υ(1S)→(cc̄)slow+2 "jet" events, where the slow moving cc system evolves into D(*) pairs. An experimental search for these phenomena at B factories and the Fermilab Tevatron is strongly urged, as the implications go beyond QCD.

Original languageEnglish
Article number071501
JournalPhysical Review D
Issue number7
Publication statusPublished - 2001

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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