Search for heavy neutrino decays in the BEBC beam dump experiment
Creators
- Cooper-Sarkar, A.M.1
- Haywood, S.J.1
- Parker, M.A.1
- Sarkar, S.1
- Klein, H.1
- Morrison, D.R.O.1
- Wachsmuth, H.1
- Barnham, K.W.J.2
- Mobayyen, M.M.2
- Talebzadeh, M.2
- Bostock, P.3
- Krstic, J.3
- Faccini-Turluer, M.L.4
- Vignaud, D.4
- Graessler, H.5
- Guy, J.6
- Venus, W.6
- Hulth, P.O.7
- Hultqvist, K.7
- Idschok, U.8
- Kreutzmann, H.8
- Nellen, B.8
- Wuensch, B.8
- Wittek, W.9
- WA66 Collaboration
- 1. European Organization for Nuclear Research, Geneva (Switzerland)
- 2. Imperial Coll. of Science and Technology, London (UK)
- 3. Oxford Univ. (UK). Dept. of Nuclear Physics
- 4. CEA Centre d'Etudes Nucleaires de Saclay, 91 - Gif-sur-Yvette (France)
- 5. Technische Hochschule Aachen (Germany, F.R.). Lehrstuhl fuer Experimentalphysik 3B und 3. Physikalisches Inst.
- 6. Science and Engineering Research Council, Chilton (UK). Rutherford Appleton Lab.
- 7. Stockholm Univ. (Sweden). Fysiska Institutionen
- 8. Bonn Univ. (Germany, F.R.). Physikalisches Inst.
- 9. Max-Planck-Institut fuer Physik und Astrophysik, Muenchen (Germany, F.R.)
Description
New limits on lepton mixing parameters are derived from a search for decays of heavy neutrinos in a proton beam dump experiment. The limits vertical strokeUsub(μi)vertical stroke2, vertical strokeUsub(ei)vertical stroke2 < 10-6-10-7 are obtained for neutrino mass eigenstates νsub(i) of mass between 0.5 and 1.75 GeV, which can be produced through mixing in charmed D meson decays. This is the first such limit on vertical strokeUsub(νi)vertical stroke2 for neutrino masses greater than 0.5 GeV. For the mass eigenstate ν3 in particular, we obtain the limits vertical strokeUsub(μ3)vertical stroke2 < 10-7-10-8. vertical strokeUsub(e3)vertical stroke2 < 10-9-10-10 for the mass range 150-190 MeV, assuming the ν3 to be produced directly in charmed F meson decays. (orig.)
Additional details
Publishing Information
- Journal Title
- Phys. Lett., B
- Journal Volume
- 160
- Journal Issue
- 1-3
- Series
- Phys. Lett., B.
- Journal Page Range
- 207-211
- ISSN
- 0370-2693
- CODEN
- PYLBA
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 17005381
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- BEAM DUMPS; CONFIGURATION MIXING; D MESONS; EIGENSTATES; F MESONS; INCLUSIVE INTERACTIONS; LIMITING VALUES; MIXING RATIO; NEUTRINOS; NUCLEON-NUCLEON INTERACTIONS; PARTICLE PRODUCTION; PROTON REACTIONS; RELATIVISTIC RANGE; REST MASS; SEMILEPTONIC DECAY; WEAK PARTICLE DECAY
- Descriptors DEC
- BARYON REACTIONS; BARYON-BARYON INTERACTIONS; BOSONS; CHARM PARTICLES; DECAY; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; HADRON REACTIONS; HADRON-HADRON INTERACTIONS; HADRONS; INTERACTIONS; LEPTONS; MASS; MASSLESS PARTICLES; MESONS; NUCLEAR REACTIONS; NUCLEON REACTIONS; PARTICLE DECAY; PARTICLE INTERACTIONS; PSEUDOSCALAR MESONS; STRANGE PARTICLES
Optional Information
- Collaborations
- WA66 Collaboration.