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Limit on the branching ratio of [ital K][sub [ital L]][r arrow][pi][sup 0][mu][sup +][mu][sup [minus]]

Journal Article · · Physical Review Letters; (United States)
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  1. The Enrico Fermi Institute, The University of Chicago, Chicago, Illinois 60637 (United States)
  2. University of California at Los Angeles, Los Angeles, California 90024 (United States)
  3. University of Colorado, Boulder, Colorado 80309 (United States)
  4. Elmhurst College, Elmhurst, Illinois 60126 (United States) The Enrico Fermi Institute, The University of Chicago, Chicago, Illinois 60637 (United States)
  5. Fermi National Accelerator Laboratory, Batavia, Illinois 60510 (United States)
  6. University of Illinois at Urbana-Champagne, Urbana, Illinois 61801 (United States)
  7. Department of
+ Show Author Affiliations
We report the results of a search for the decay [ital K][sub [ital L]][r arrow][pi][sup 0][mu][sup +][mu][sup [minus]] conducted by E799 at Fermilab. This decay mode is expected to have significant [ital CP][minus]violating contributions and a direct measurement could either confirm the standard model mechanisms for [ital CP]-violation or point to physics beyond the standard model. No such events were seen. The 90% confidence level upper limit is determined to be [ital B]([ital K][sub [ital L]][r arrow][pi][sup 0][mu][sup +][mu][sup [minus]])[lt]5.1[times]10[sup [minus]9].
OSTI ID:
5321190
Journal Information:
Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 71:24; ISSN 0031-9007; ISSN PRLTAO
Country of Publication:
United States
Language:
English

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Limit on the branching ratio of [ital K][sub [ital L]][r arrow][pi][sup 0][nu][bar [nu]]
Journal Article · Mon Jun 13 00:00:00 EDT 1994 · Physical Review Letters; (United States) · OSTI ID:7233343
Analysis of the decay [ital K][sub [ital L]][r arrow][pi][sup 0][gamma][gamma] and expectations for the decays [ital K][sub [ital L]][r arrow][pi][sup 0][ital e+][ital e[minus]] and [ital K][sub [ital L]][r arrow][pi][sup 0][mu][sup +][mu][sup [minus]]
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Related Subjects

662120 -- General Theory of Particles & Fields-- Symmetry
Conservation Laws
Currents & Their Properties-- (1992-)
662350* -- Decays of Mesons-- (1992-)
662420 -- Properties of Mesons & Meson Resonances-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANTILEPTONS
ANTIMATTER
ANTIPARTICLES
BOSONS
BRANCHING RATIO
CP INVARIANCE
DECAY
ELEMENTARY PARTICLES
FERMIONS
HADRONS
INVARIANCE PRINCIPLES
KAONS
KAONS NEUTRAL
KAONS NEUTRAL LONG-LIVED
LEPTONS
MATHEMATICAL MODELS
MATTER
MESONS
MUONS
MUONS PLUS
PARTICLE DECAY
PARTICLE MODELS
PIONS
PIONS NEUTRAL
PSEUDOSCALAR MESONS
SEMILEPTONIC DECAY
STANDARD MODEL
STRANGE MESONS
STRANGE PARTICLES
UNIFIED GAUGE MODELS
VIOLATIONS
WEAK PARTICLE DECAY