Published October 10, 1988
| Version v1
Journal article
Evidence for a large breaking of charge independence in the NN interaction
- 1. Institute for Theoretical Physics, University of Nijmegen, Nijmegen, The Netherlands
Description
In an energy-dependent phase-shift analysis of all np scattering data below T/sub lab/ = 30 MeV, we find a large breaking of charge independence in the πNN coupling constants g02 and g/sub c/2. For 495 degrees of freedom we obtain chi/sub min/2 = 533.8 and Δg2equivalentg/sub c/2-g02 = 1.28 +- 0.15. A combined analysis, including also all pp scattering data below T/sub lab/ = 30 MeV, results in chi/sub min/2 = 847.2 for 840 degrees of freedom. We then obtain Δg2 = 1.62 +- 0.27. The effect of such large values for Δg2 is most strikingly seen in the 3P waves. The np 3P phase shifts at T/sub lab/ = 25 MeV are much larger than those of other phase-shift analyses
Additional details
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 61
- Journal Issue
- 15
- Series
- Phys. Rev. Lett.
- Journal Page Range
- 1702-1705
- ISSN
- 0031-9007
- CODEN
- PRLTA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 20004936
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- CHARGE INDEPENDENCE; COUPLING CONSTANTS; DATA PROCESSING; ENERGY DEPENDENCE; ISOSPIN; MEV RANGE 01-10; MEV RANGE 10-100; NUCLEON-NUCLEON INTERACTIONS; NUMERICAL DATA; OPE MODEL; PHASE SHIFT; PROTON-NEUTRON INTERACTIONS; PROTON-PROTON INTERACTIONS; SYMMETRY BREAKING
- Descriptors DEC
- BARYON-BARYON INTERACTIONS; BOSON-EXCHANGE MODELS; DATA; ENERGY RANGE; HADRON-HADRON INTERACTIONS; INFORMATION; INTERACTIONS; INVARIANCE PRINCIPLES; MATHEMATICAL MODELS; MEV RANGE; OBE MODEL; PARTICLE INTERACTIONS; PARTICLE MODELS; PARTICLE PROPERTIES; PERIPHERAL MODELS; PROTON-NUCLEON INTERACTIONS