Measurement of the K$sup 0$/submu/$sub 3$/K$sup 0$/sube/$sub 3$ branching ratio, the K$sup 0$/subl/$sub 3$ form factors, and the K$sup 0$/subpi/$sub 3$ decay parameters

Journal Article · Mon Oct 01 04:00:00 EDT 1973 · Phys. Rev., D, v. 8, no. 7, pp. 1978-1989

OSTI ID:4317653

Brandenburg, G W; Johnson, W B; Leith, D W.G.S.; Loos, J S; Matthews, J A.J.; Winkelmann, F C; Yamartino, R J

In a hydrogen bubble-chamber experiment with a KL beam we have measured the K/sup 0//sub mu 3//K/sup 0//sub e3/ branching ratio to be R = 0.741 plus or minus 0.044 and the slope of the f/sub +/ form factor to be lambda /sub +/ = 0.019 plus or minus 0.013. Th e data have been analyzed with a new variable, (p'T)/sup 2/, which isolates a sample of unique K/sub e3/ decays and is independent of the K/sub L/ beam momentum. These results are compatible with the predictions of K* dominance for f/sub +/ and the Callan-Treiman relation for f/ sub o/, but indicat e a breaking of the DELTA I = (1/2) rule. We have also determined the (K/sub L/ yields /(all charged K/sub L/ decays) branching ratio to be R/sub pi / = 0.146 plus or minus pi o/ slope of the K/sub pi 3/ Dalitz plot to be given by g = 0.73 plus or minus 0.04. (auth)

• Research Organization: Stanford Linear Accelerator Center, Stanford University, Stanford, California 94305
• NSA Number: NSA-29-022444
• OSTI ID: 4317653
• Journal Information: Phys. Rev., D, v. 8, no. 7, pp. 1978-1989, Journal Name: Phys. Rev., D, v. 8, no. 7, pp. 1978-1989; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

*KAONS NEUTRAL LONG-LIVED-- DECAY
*KAONS NEUTRAL-- LEPTONIC DECAY
BRANCHING RATIO
ELECTRONS
FORM FACTORS
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N64120* --Physics (High Energy)--Particle Interactions & Properties (Experimental)--Weak
NEUTRINOS
PIONS
SELECTION RULES