Published August 2002 | Version v1
Journal article Metadata-only

Measurement of Γ(Kμ3)/Γ(Ke3) ratio using stopped positive kaons

Creators

  • 1. Osaka University, Graduate School of Science, Department of Physics, Toyonaka, Osaka (Japan)

Description

The ratio of the K+→π0μ+ν (Kμ3+) and K+→π+e+ν (Ke3+) decay widths, Γ(Kμ3)/Γ(Ke3), has been measured with stopped positive kaons. Kμ3+ and Ke3+ samples containing 2.4x104 and 4.0x104 events, respectively, were analyzed. Calculating the detector acceptance by Monte Carlo simulation, the Γ(Kμ3)/Γ(Ke3) ratio was obtained to be 0.671±0.007(stat)±0.006(syst). With the assumption of μ-e universality, the coefficient of the q2 dependent term of the f0 form factor was also determined to be λ0=0.019±0.005(stat)±0.004(syst)

Additional details

Publishing Information

Journal Title
Genshikaku Kenkyu
Journal Volume
47
Journal Issue
3
Journal Page Range
p. 105-114
ISSN
0367-4169

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
33062372
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
DECAY AMPLITUDES; ELECTRONS; FORM FACTORS; KAONS PLUS; MONTE CARLO METHOD; MUONS; NEUTRINOS; PARTICLE DECAY; PARTICLE INTERACTIONS; PIONS; QUANTUM CHROMODYNAMICS; STRONG INTERACTIONS
Descriptors DEC
AMPLITUDES; BASIC INTERACTIONS; BOSONS; CALCULATION METHODS; DECAY; ELEMENTARY PARTICLES; FERMIONS; FIELD THEORIES; HADRONS; INTERACTIONS; KAONS; LEPTONS; MASSLESS PARTICLES; MESONS; PARTICLE PROPERTIES; PSEUDOSCALAR MESONS; QUANTUM FIELD THEORY; STRANGE MESONS; STRANGE PARTICLES; TRANSITION AMPLITUDES

Optional Information

Notes
17 refs., 5 figs., 3 tabs.