Published January 20, 2006
| Version v1
Journal article
Parity-Violating Electron Scattering from 4He and the Strange Electric Form Factor of the Nucleon
Creators
- Aniol, K.A.1
- Margaziotis, D.J.1
- Armstrong, D.S.2
- Averett, T.2
- Finn, J.M.2
- Holmstrom, T.2
- Kelleher, A.2
- Moffit, B.2
- Sulkosky, V.2
- Benaoum, H.3
- Holmes, R.3
- Souder, P.A.3
- Bertin, P.Y.4
- Ferdi, C.4
- Burtin, E.5
- Lhuillier, D.5
- Munoz-Camacho, C.5
- Neyret, D.5
- Vacheret, A.5
- Cahoon, J.6
- and others
- HAPPEX Collaboration
- 1. California State University, Los Angeles, Los Angeles, California 90032 (United States)
- 2. College of William and Mary, Williamsburg, Virginia 23187 (United States)
- 3. Syracuse University, Syracuse, New York 13244 (United States)
- 4. Universite Blaise Pascal/CNRS-IN2P3, F-63177 Aubiere (France)
- 5. CEA Saclay, DAPNIA/SPhN, F-91191 Gif-sur-Yvette (France)
- 6. University of Massachusetts Amherst, Amherst, Massachusetts 01003 (United States)
Description
We have measured the parity-violating electroweak asymmetry in the elastic scattering of polarized electrons from 4He at an average scattering angle <θlab>=5.7 deg. and a four-momentum transfer Q2=0.091 GeV2. From these data, for the first time, the strange electric form factor of the nucleon GEs can be isolated. The measured asymmetry of APV=(6.72±0.84(stat)±0.21(syst))x10-6 yields a value of GEs=-0.038±0.042(stat)±0.010(syst), consistent with zero
Additional details
Identifiers
- DOI
- 10.1103/PhysRevLett.96.022003;
- arXiv
- arXiv:nucl-ex/0506010v1;
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 96
- Journal Issue
- 2
- Journal Page Range
- p. 022003-022003.5
- ISSN
- 0031-9007
- CODEN
- PRLTAO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 37078607
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- ASYMMETRY; ELASTIC SCATTERING; ELECTRON DIFFRACTION; ELECTRONS; FORM FACTORS; FOUR MOMENTUM TRANSFER; HELIUM 4; NUCLEONS; PARITY; POLARIZATION
- Descriptors DEC
- BARYONS; COHERENT SCATTERING; DIFFRACTION; DIMENSIONLESS NUMBERS; ELEMENTARY PARTICLES; EVEN-EVEN NUCLEI; FERMIONS; HADRONS; HELIUM ISOTOPES; ISOTOPES; LEPTONS; LIGHT NUCLEI; MOMENTUM TRANSFER; NUCLEI; PARTICLE PROPERTIES; SCATTERING; STABLE ISOTOPES
Optional Information
- Notes
- (c) 2006 The American Physical Society
- Collaborations
- HAPPEX Collaboration