Observation of the radiative decay {ital J}/{psi}{r_arrow}{ital e}{sup +}{ital e}{sup {minus}}{gamma}
Journal Article
·
· Physical Review, D
OSTI ID:397776
We report the first observation of the (radiative) decay {ital J}/{psi}{r_arrow}{ital e}{sup +}{ital e}{sup {minus}}{gamma}. Our data are from an experiment in which {ital J}/{psi} is formed in antiproton-proton annihilations. The observed rate is consistent with a QED calculation based on final state radiation. Our measurement gives a branching ratio for this mode of (8.8{plus_minus}1.3{plus_minus}0.4){times}10{sup {minus}3} for {gamma} energy{gt}100 MeV. {copyright} {ital 1996 The American Physical Society.}
- OSTI ID:
- 397776
- Journal Information:
- Physical Review, D, Vol. 54, Issue 11; Other Information: PBD: Dec 1996
- Country of Publication:
- United States
- Language:
- English
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