Published May 1995
| Version v1
Journal article
Spin alignment and parity violation effects in p0 production in neutrino and antineutrino charged-current interactions
Creators
- Zaetz, V.G.1
- Aderholz, M.2
- Ammosov, V.V.1
- Asratyan, A.E.3
- Coghen, T.4
- Erriquez, O.5
- Gapienko, V.A.1
- Gapienko, G.S.1
- Guy, J.6
- Jones, G.T.7
- Kaftanov, V.S.3
- Katz, U.F.2
- Korotkov, V.A.1
- Krutchinin, S.P.3
- Kubantsev, M.A.3
- Marage, P.8
- Morrison, D.R.O.9
- Schmitz, N.2
- Varvell, K.E.7
- Venus, W.6
- Wittek, W.2
- Big Bubble Chamber Neutrino Collaboration
- 1. Institut Fiziki Vysokikh Ehnergij, Protvino (Russian Federation)
- 2. Max-Planck-Institut fuer Physik, Muenchen (Germany)
- 3. Institut Teoreticheskoj i Ehksperimental'noj Fiziki, Moscow (Russian Federation)
- 4. Institute of Nuclear Physics, Cracow (Poland)
- 5. Istituto Nazionale di Fisica Nucleare, Bari (Italy). Ist. e Sezione di Fisica
- 6. Rutherford Appleton Lab., Chilton (United Kingdom)
- 7. Birmingham Univ. (United Kingdom)
- 8. Interuniversity Inst. for High Energies, Brussels (Belgium)
- 9. European Organization for Nuclear Research, Geneva (Switzerland)
Description
Most of the measured events on hydrogen, deuterium and neon targets from BEBC at CERN and the 15-foot Bubble Chamber at Fermilab are combined to measure spin-density matrix elements for ρ0 production in the current-fragmentation region in neutrino and antineutrino charged-current interactions. The spin-alignment parameter η is found to be 0.08 ± 0.11 for neutrino and 0.41 ± 0.11 for antineutrino interactions. The parity-odd density matrix element Im(ρ10 + ρ-10) is consistent with zero in both reactions. In the combined neutrino and antineutrino data an indication of parity violation is observed: Imρ1-1 = 0.38 ± 0.16 at xB > 0.2, Q2 > 8 GeV2 and z > 0.6. (orig.)
Additional details
Publishing Information
- Journal Title
- Zeitschrift fuer Physik. C, Particles and Fields
- Journal Volume
- 66
- Journal Issue
- 4
- Journal Page Range
- p. 583-590.
- ISSN
- 0170-9739
- CODEN
- ZPCFD2
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 27006547
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; S73: NUCLEAR PHYSICS AND RADIATION PHYSICS; S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- ANTINEUTRINO REACTIONS; ANTINEUTRINO-NUCLEON INTERACTIONS; BUBBLE CHAMBERS; CHARGED-CURRENT INTERACTIONS; DEEP INELASTIC SCATTERING; DENSITY MATRIX; DEUTERIUM TARGET; DIFFERENTIAL CROSS SECTIONS; EFFECTIVE MASS; GEV RANGE 10-100; HYDROGEN 1 TARGET; INCLUSIVE INTERACTIONS; MASS SPECTRA; MATRIX ELEMENTS; NEON 20 TARGET; NEUTRINO REACTIONS; NEUTRINO-NUCLEON INTERACTIONS; NEUTRINOS; PARTICLE PRODUCTION; RHO-770 MESONS; SPIN; TRANSVERSE MOMENTUM
- Descriptors DEC
- ANGULAR MOMENTUM; BOSONS; CROSS SECTIONS; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; GAS TRACK DETECTORS; GEV RANGE; HADRONS; INELASTIC SCATTERING; INTERACTIONS; LEPTON REACTIONS; LEPTON-BARYON INTERACTIONS; LEPTON-HADRON INTERACTIONS; LEPTON-NUCLEON INTERACTIONS; LEPTONS; LINEAR MOMENTUM; MASS; MASSLESS PARTICLES; MATRICES; MEASURING INSTRUMENTS; MESONS; NUCLEAR REACTIONS; PARTICLE INTERACTIONS; PARTICLE PROPERTIES; RADIATION DETECTORS; SCATTERING; SPECTRA; TARGETS; VECTOR MESONS
Optional Information
- Collaborations
- Big Bubble Chamber Neutrino Collaboration.