Published January 1995 | Version v1
Journal article Metadata-only

Determination of the branching ratios Γ(KL → 3π0)/Γ(KL → π+π-π0) and Γ(KL → 3π0)/Γ(KL → πeν)

Creators

  • 1. Siegen Univ. (Gesamthochschule) (Germany). Fachbereich 7 - Physik
  • 2. Heriot-Watt Univ., Edinburgh (United Kingdom). Dept. of Physics
  • 3. Mainz Univ. (Germany). Inst. fuer Physik
  • 4. Univ. de Paris-Sud, Lab. de l'Accelerateur Lineaire, Orsay (France)
  • 5. Istituto Nazionale di Fisica Nucleare, Pisa (Italy). Dipt. di Fisica

Description

Improved branching ratios were measured for the KL → 3π0 decay in a neutral beam at the CERN SPS with the NA31 detector: Γ(KL → 3π0)/Γ(KL → π+π-π0) = 1.611 ± 0.037 and Γ(KL → 3π0)/Γ(KL → πeν) = 0.545 ± 0.010. From the first number an upper limit for ΔI = 5/2 and ΔI = 7/2 transitions in neutral kaon decay is derived. Using older results for the Ke3/Kμ3 fraction, the 3π0 branching ratio is found to be Γ(KL → 3π0)/Γtot = (0.211 ± 0.003), about a factor three more precise than from previous experiments. (orig.)

Additional details

Publishing Information

Journal Title
Zeitschrift fuer Physik. C, Particles and Fields
Journal Volume
65
Journal Issue
1
Journal Page Range
p. 67-74.
ISSN
0170-9739
CODEN
ZPCFD2

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
26038920
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
BRANCHING RATIO; EFFECTIVE MASS; EXPERIMENTAL DATA; KAONS NEUTRAL LONG-LIVED; LIMITING VALUES; MASS SPECTRA; PARTICLE WIDTHS; WEAK HADRONIC DECAY
Descriptors DEC
BOSONS; DATA; DECAY; ELEMENTARY PARTICLES; HADRONS; INFORMATION; KAONS; KAONS NEUTRAL; MASS; MESONS; NUMERICAL DATA; PARTICLE DECAY; PARTICLE PROPERTIES; PSEUDOSCALAR MESONS; SPECTRA; STRANGE MESONS; STRANGE PARTICLES; WEAK PARTICLE DECAY