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Search for a 33.9 MeV/c^2 Neutral Particle in Pion Decay

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arxiv hep-ex/9912062 v1 pith:MJDFXCCI submitted 1999-12-24 hep-ex

J. A. Formaggio , E. D. Zimmerman , T. Adams , A. Alton , S. Avvakumov , L. de Barbaro , P. de Barbaro , R. H. Bernstein
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A. Bodek T. Bolton J. Brau D. Buchholz H. Budd L. Bugel S. Case J. M. Conrad R. B. Drucker B. T. Fleming R. Frey J. Goldman M. Goncharov D. A. Harris R. A. Johnson J. H. Kim S. Koutsoliotas M. J. Lamm W. Marsh D. Mason K. S. McFarland C. McNulty D. Naples P. Nienaber A. Romosan W. K. Sakumoto H. M. Schellman M. H. Shaevitz P. Spentzouris E. G. Stern M. Vakili A. Vaitaitis V. Wu U. K. Yang J. Yu G .P. Zeller
This is my paper · ORCID
classification hep-ex
keywords particledecaypionsearche815experimentneutralneutrino
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The E815 (NuTeV) neutrino experiment has performed a search for a 33.9 MeV/c^2 weakly-interacting neutral particle produced in pion decay. Such a particle may be responsible for an anomaly in the timing distribution of neutrino interactions in the KARMEN experiment. E815 has searched for this particle's decays in an instrumented decay region; no evidence for this particle was found. The search is sensitive to pion branching ratios as low as 10^-13.

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