Published September 1, 2006 | Version v1
Journal article Metadata-only

Parity-violating asymmetries in elastic e(vector sign)p scattering in the chiral quark-soliton model: Comparison with the A4, G0, HAPPEX and SAMPLE experiments

Creators

  • 1. Faculdade de Engenharia da Universidade do Porto, R. Dr. Roberto Frias s/n, P-4200-465 Porto (Portugal)
  • 2. Departamento de Fisica and Centro de Fisica Computacional, Universidade de Coimbra, P-3000 Coimbra (Portugal)
  • 3. Department of Physics and Nuclear Physics and Radiation Technology Institute (NuRI), Pusan National University, 609-735 Busan (Korea, Republic of)
  • 4. Institut fuer Theoretische Physik II, Ruhr-Universitaet Bochum, D-44780 Bochum (Germany)

Description

We investigate parity-violating electroweak asymmetries in the elastic scattering of polarized electrons off protons within the framework of the chiral quark-soliton model (χQSM). We use as input the former results of the electromagnetic and strange form factors and newly calculated SU(3) axial-vector form factors, all evaluated with the same set of four parameters adjusted several years ago to general mesonic and baryonic properties. Based on this scheme, which yields positive electric and magnetic strange form factors with μs=(0.08-0.13)μN, we determine the parity-violating asymmetries of elastic polarized electron-proton scattering. The results are in a good agreement with the data of the A4, HAPPEX, and SAMPLE experiments and reproduce the full Q2 range of the G0 data. We also predict the parity-violating asymmetries for the backward G0 experiment

Additional details

Identifiers

DOI
10.1103/PhysRevD.74.054011;
arXiv
arXiv:hep-ph/0601239v1;

Publishing Information

Journal Title
Physical Review. D, Particles Fields
Journal Volume
74
Journal Issue
5
Journal Page Range
p. 054011-054011.8
ISSN
0556-2821
CODEN
PRVDAQ

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
38038920
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
ASYMMETRY; CHIRALITY; COMPARATIVE EVALUATIONS; ELASTIC SCATTERING; ELECTRON BEAMS; ELECTRON-PROTON INTERACTIONS; ELECTRONS; FORM FACTORS; P INVARIANCE; PARITY; POLARIZED BEAMS; PROTONS; QUARK MODEL; QUARKS; SOLITONS; SU-3 GROUPS
Descriptors DEC
BARYONS; BEAMS; COMPOSITE MODELS; DIMENSIONLESS NUMBERS; ELECTRON-NUCLEON INTERACTIONS; ELEMENTARY PARTICLES; EVALUATION; FERMIONS; HADRONS; INTERACTIONS; INVARIANCE PRINCIPLES; LEPTON BEAMS; LEPTON-BARYON INTERACTIONS; LEPTON-HADRON INTERACTIONS; LEPTON-NUCLEON INTERACTIONS; LEPTONS; LIE GROUPS; MATHEMATICAL MODELS; NUCLEONS; PARTICLE BEAMS; PARTICLE INTERACTIONS; PARTICLE MODELS; PARTICLE PROPERTIES; QUASI PARTICLES; SCATTERING; SU GROUPS; SYMMETRY GROUPS

Optional Information

Notes
(c) 2006 The American Physical Society