Search for the decay K sup + r arrow. pi. sup +. nu. nu

Journal Article · Mon Jan 01 00:00:00 EST 1990 · Physical Review Letters; (USA)

DOI:https://doi.org/10.1103/PhysRevLett.64.21· OSTI ID:6981838

Atiya, M S; Chiang, I; Frank, J S; Haggerty, J S; Ito, M M; Kycia, T F; Li, K K; Littenberg, L S; Stevens, A; Strand, R C ^[1]; Louis, W C ^[2]; Akerib, D S; Marlow, D R; Meyers, P D; Selen, M A; Shoemaker, F C; Smith, A J.S. ^[3]; Azuelos, G; Blackmore, E W; Bryman, D A ; Felawka, L; Kitching, P; Kuno, Y; Macdonald, J A; Numao, T; Padley, P; Poutissou, J; Poutissou, R; Roy, J ^[4]

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1. Brookhaven National Laboratory, Upton, New York 11973 (USA)
2. Medium Energy Physics Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (USA)
3. Joseph Henry Laboratories, Princeton University, Princeton, New Jersey 08544 (USA)
4. TRIUMF, Vancouver, British Columbia, Canada V6T2A3 (CA)

An upper limit on the branching ratio for the decay {ital K}{sup +}{r arrow}{pi}{sup +}{nu}{bar {nu}} is set at 3.4{times}10{sup {minus}8} (90% C.L.). In addition, a 90%-C.L. upper limit of 6.4{times}10{sup {minus}9} is set on the branching ratio for decays of the form {ital K}{sup +}{r arrow}{pi}{sup +}{ital X}{sup 0}, where {ital X}{sup 0} is any massless, weakly interacting neutral particle. Limits are also set for the case where {ital M}{sub {ital X}{sup 0}}{gt}0.

• DOE Contract Number: AC02-76CH00016; W-7405-ENG-36; AC02-76ER03072
• OSTI ID: 6981838
• Journal Information: Physical Review Letters; (USA), Vol. 64:1; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
KAONS PLUS
SEMILEPTONIC DECAY
PIONS PLUS
PARTICLE IDENTIFICATION
BRANCHING RATIO
BROOKHAVEN AGS
DATA ANALYSIS
ERRORS
EXPERIMENTAL DATA
HIGGS BOSONS
LIMITING VALUES
MEV RANGE 100-1000
NEUTRINOS
PARTICLE PRODUCTION
PARTICLE TRACKS
ACCELERATORS
BOSONS
CYCLIC ACCELERATORS
DATA
DECAY
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
HADRONS
INFORMATION
KAONS
LEPTONS
MASSLESS PARTICLES
MESONS
MEV RANGE
NUMERICAL DATA
PARTICLE DECAY
PIONS
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
STRANGE MESONS
STRANGE PARTICLES
SYNCHROTRONS
WEAK PARTICLE DECAY
645102* - High Energy Physics- Particle Interactions & Properties-Experimental- Weak Interactions & Properties
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