Nucleon-nucleon partial-wave analysis to 1100 MeV

Journal Article · Thu Jan 01 04:00:00 EST 1987 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.35.128· OSTI ID:6732354

Arndt, R A; Hyslop, III, J S; Roper, L D

Comprehensive analyses of nucleon-nucleon elastic-scattering data below 1100 MeV laboratory kinetic energy are presented. The data base from which an energy-dependent solution and 22 single-energy solutions are obtained consists of 7223 pp and 5474 np data. A resonancelike structure is found to occur in the /sup 1/D/sub 2/, /sup 3/F/sub 3/, /sup 3/P/sub 2/-/sup 3/F/sub 2/, and /sup 3/F/sub 4/-/sup 3/H/sub 4/ partial waves; this behavior is associated with poles in the complex energy plane. The pole positions and residues are obtained by analytic continuation of the ''production'' piece of the T matrix obtained in the energy-dependent solution. The new phases differ somewhat from previously published VPIandSU solutions, especially in I = 0 waves above 500 MeV, where np data are very sparse. The partial waves are, however, based upon a significantly larger data base and reflect correspondingly smaller errors. The full data base and solution files can be obtained through a computer scattering analysis interactive dial-in (SAID) system at VPIandSU, which also exists at many institutions around the world and which can be transferred to any site with a suitable computer system. The SAID system can be used to modify solutions, plan experiments, and obtain any of the multitude of predictions which derive from partial-wave analyses of the world data base.

• Research Organization: Department of Physics, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
• OSTI ID: 6732354
• Journal Information: Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 35:1; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

645103* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Strong Interactions & Baryon & Meson Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYON-BARYON INTERACTIONS
DATA BASE MANAGEMENT
ELASTIC SCATTERING
ENERGY DEPENDENCE
ENERGY RANGE
GEV RANGE
GEV RANGE 01-10
HADRON-HADRON INTERACTIONS
HELICITY
INTERACTIONS
MANAGEMENT
MATRICES
MEV RANGE
NUCLEON-NUCLEON INTERACTIONS
PARTIAL WAVES
PARTICLE INTERACTIONS
PARTICLE PROPERTIES
S MATRIX
SCATTERING