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Published July 14, 1986 | public
Journal Article Open

Search for a Short-Lived Neutral Particle Produced in Nuclear Decay


We report on a search for a short-lived neutral particle φ produced in the decay of the 9.17-MeV Jπ=2+ state in 14N. The experiment is sensitive to decays into an e+e- pair with τφ≲10^-11 s. For mφ=1.7 MeV we place a limit on the branching ratio of Γφ/Γγ<~4×10^-4 at the 90% confidence level.

Additional Information

©1986 The American Physical Society Received 28 February 1986 We wish to thank S.E. Koonin, M.-C. Chou, and V. Pönisch for helpful discussions. We would also like to thank C.A. Barnes for providing the enriched 13C target. We acknowledge support from National Science Foundation Grant No. PHY85-05682.


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