Published September 1, 2011 | Version v1
Journal article Metadata-only

Search for massive neutrinos in the decay π→eν

Creators

  • 1. Physics Department, Osaka University, Toyonaka, Osaka, 560-0043 (Japan)
  • 2. Virginia Tech., Blacksburg, Virginia, 24061 (United States)
  • 3. Department of Physics and Astronomy, University of British Columbia, Vancouver, B.C., V6T 1Z1 (Canada)
  • 4. Department of Engineering Physics, Tsinghua University, Beijing, 100084 (China)
  • 5. TRIUMF, 4004 Wesbrook Mall, Vancouver, B.C., V6T 2A3 (Canada)
  • 6. University of Northern British Columbia, Prince George, B.C., V2N 4Z9 (Canada)
  • 7. KEK, 1-1 Oho, Tsukuba-shi, Ibaraki, 305-0801 (Japan)

Description

Evidence of massive neutrinos in the π+→e+ν decay spectrum was sought with the background π+→μ+→e+ decay chain highly suppressed. Upper limits (90% C.L.) on the neutrino mixing matrix element |Uei|2 in the neutrino mass region 60-129 MeV/c2 were set at the level of 10-8.

Additional details

Identifiers

DOI
10.1103/PhysRevD.84.052002;
arXiv
arXiv:1106.4055v1;

Publishing Information

Journal Title
Physical Review. D, Particles Fields
Journal Volume
84
Journal Issue
5
Journal Page Range
p. 052002-052002.5
ISSN
0556-2821
CODEN
PRVDAQ

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
43083292
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
MASS; MATRIX ELEMENTS; MEV RANGE; NEUTRINOS; PARTICLE DECAY; PIONS PLUS; POSITRONS; SPECTRA
Descriptors DEC
ANTILEPTONS; ANTIMATTER; ANTIPARTICLES; BOSONS; DECAY; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; HADRONS; LEPTONS; MASSLESS PARTICLES; MATTER; MESONS; PIONS; PSEUDOSCALAR MESONS

Optional Information

Notes
(c) 2011 American Institute of Physics
Collaborations
PIENU Collaboration