Published March 30, 1989 | Version v1
Journal article Metadata-only

Experimental limits on nucleon lifetime for lepton + meson decay modes

Creators

  • 1. Tokyo Univ., Tanashi (Japan). Inst. for Cosmic Ray Research
  • 2. National Lab. for High Energy Physics, Tsukuba, Ibaraki (Japan)
  • 3. Tokai Univ., Tokyo (Japan)
  • 4. Kobe Univ. (Japan). Dept. of Physics
  • 5. Niigata Univ. (Japan)
  • 6. Osaka Univ. (Japan). Dept. of Physics
  • 7. Pennsylvania Univ., Philadelphia (USA). Dept. of Physics

Description

We have searched for nucleon decay signals using data from the KAMIOKANDE-II detector. No evidence for nucleon decay has been found. Limits on the nucleon partial lifetime for various decay modes are obtained combining KAMIOKANDE-I and -II data (3.76 kt yr in total). The background subtracted limits at 90% CL range from 0.1x1032 yr to 2.6x1032 yr depending on the decay modes. For the decay modes p → e+π0, p → anti vK+ and n → anti vK0, the limits are 2.6x1032 yr, 1.0x1032 yr and 0.9 x 1032 yr, respectively. (orig.)

Additional details

Publishing Information

Journal Title
Physics Letters, (Section) B
Journal Volume
220
Journal Issue
1/2
Series
Phys. Lett., B.
Journal Page Range
308-316
ISSN
0370-2693
CODEN
PYLBA

INIS

Country of Publication
Netherlands
Country of Input or Organization
Netherlands
INIS RN
20047778
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
BRANCHING RATIO; EXPERIMENTAL DATA; LIFETIME; LIMITING VALUES; NEUTRONS; NUCLEONS; PROTONS; SEMILEPTONIC DECAY
Descriptors DEC
BARYONS; CATIONS; CHARGED PARTICLES; DATA; DECAY; ELEMENTARY PARTICLES; FERMIONS; HADRONS; HYDROGEN IONS; HYDROGEN IONS 1 PLUS; INFORMATION; IONS; NUMERICAL DATA; PARTICLE DECAY; WEAK PARTICLE DECAY