Abstract
With a 15M J/φ inclusive Monte Carlo sample, the absolute branching fraction of J/φ γη′ from the J/φ inclusive photon spectrum is measured to be Br(J/φ γ η′) (4.68 0.08 0.27) × 10-3, which is in good agreement with the input value. The J/φ γfJ(2220) is also searched for using the same sample. Under our assumptions, the statistical significances of J/φ γf J(2220) are larger than 7σ.
Original language | English (US) |
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Article number | 041302 |
Journal | Chinese Physics Letters |
Volume | 26 |
Issue number | 4 |
DOIs | |
State | Published - 2009 |
Externally published | Yes |