Search for a 33.9 MeV/c{sup 2} Neutral Particle in Pion Decay

Journal Article · Mon May 01 00:00:00 EDT 2000 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.84.4043· OSTI ID:20216329

Formaggio, J A ^[1]; Zimmerman, E D ^[1]; Adams, T ^[2]; Alton, A ^[2]; Avvakumov, S ^[3]; Barbaro, L de ^[4]; Barbaro, P de ^[3]; Bernstein, R H ^[5]; Bodek, A ^[3]; Bolton, T ^[2]

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1. Columbia University, New York, New York 10027 (United States)
2. Kansas State University, Manhattan, Kansas 66506 (United States)
3. University of Rochester, Rochester, New York 14627 (United States)
4. Northwestern University, Evanston, Illinois 97403 (United States)
5. Fermilab, Batavia, Illinois 60510 (United States)

The E815 (NuTeV) neutrino experiment has performed a search for a 33.9 MeV/c{sup 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{sup -13} . (c) 2000 The American Physical Society.

• OSTI ID: 20216329
• Journal Information: Physical Review Letters, Vol. 84, Issue 18; Other Information: PBD: 1 May 2000; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
PIONS
PARTICLE DECAY
NEUTRAL PARTICLES
NEUTRINO-NUCLEON INTERACTIONS
BRANCHING RATIO
EXPERIMENTAL DATA