Search for the decay [ital K][sub [ital L]][sup 0][r arrow][pi][sup 0][pi][sup 0][gamma]

Journal Article · Mon Aug 01 04:00:00 EDT 1994 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.50.1874· OSTI ID:7272743

Roberts, D; Arisaka, K; Kubic, J; Slater, W; Weaver, M ^[1]; Briere, R A; Cheu, E; Harris, D A; McFarland, K S; Roodman, A; Schwingenheuer, B; Somalwar, S V; Wah, Y W; Winstein, B; Winston, R ^[2]; Barker, A R ^[3]; Swallow, E C ^[4]; Bock, G J; Coleman, R; Crisler, M ; Enagonio, J; Ford, R; Hsiung, Y B; Jensen, D A; Ramberg, E; Tschirhart, R ^[5]; Collins, E M; Gollin, G D ^[6]; Nakaya, T; Yamanaka, T ^[7]

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1. University of California at Los Angeles, Los Angeles, California 90024 (United States)
2. The Enrico Fermi Institute, The University of Chicago, Chicago, Illinois 60637 (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, Urbana, Illinois 61801 (United States)
7. Department of Physics, Osaka Unive

We report the results of a search for the decay [ital K][sub [ital L]][sup 0][r arrow][pi][sup 0][pi][sup 0][gamma] conducted by the E799 Collaboration at Fermilab. The amplitude for this process vanishes to [ital O]([ital p][sup 4]) in chiral perturbation theory, so a measurement of the decay would directly probe [ital O]([ital p][sup 6]) effects. This is the first published search for this decay mode and we set a 90% confidence level upper limit on the branching ratio of [ital B]([ital K][sub [ital L]][sup 0][r arrow][pi][sup 0][pi][sup 0][gamma])[lt]2.3[times]10[sup [minus]4].

• OSTI ID: 7272743
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 50:3; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

662350* -- Decays of Mesons-- (1992-)
662390 -- Electromagnetic Processes & Properties-- (1992-)
662420 -- Properties of Mesons & Meson Resonances-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
AMPLITUDES
BOSONS
BRANCHING RATIO
CHIRAL SYMMETRY
DECAY
DECAY AMPLITUDES
ELEMENTARY PARTICLES
HADRONS
KAONS
KAONS NEUTRAL
KAONS NEUTRAL LONG-LIVED
LIMITING VALUES
MESONS
PARTICLE DECAY
PERTURBATION THEORY
PIONS
PIONS NEUTRAL
PSEUDOSCALAR MESONS
RADIATIVE DECAY
STRANGE MESONS
STRANGE PARTICLES
SYMMETRY
TRANSITION AMPLITUDES