Phenomenological transition amplitudes for [ital NN][r arrow][ital N][Delta] at 800 MeV

Journal Article · Thu Mar 31 23:00:00 EST 1994 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.49.2109· OSTI ID:5004552

Ray, L ^[1]

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1. Department of Physics, The University of Texas at Austin, Austin, Texas 78712 (United States)

A description of [ital pp][r arrow][ital nX] inclusive inelastic scattering data for 8 dominated by [Delta] (3,3) excitation is presented based on a partial wave expansion model for the reaction [ital pp][r arrow][ital n][Delta][sup ++]. The data selected for analysis include the total reaction cross section, differential cross sections, analyzing powers, polarization transfers, and spin correlation parameters. A semiquantitative fit to the data is achieved and a phenomenological model for the isospin 1 [ital NN][r arrow][ital N][Delta] transition matrix is presented. The latter quantity is expressed in terms of sixteen parity invariant bilinear combinations of spin operators and accompanying amplitudes. These sixteen amplitudes constitute the first complete phenomenological representation of the [ital NN][r arrow][ital N][Delta] transition which can be used as input fo r distorted wave Born approximation calculations of nucleon and light ion induced [Delta] excitation in nuclei. Of the sixteen spin operators ten include rank 2 tensors. The effects of these tensor amplitudes on the inelastic [ital NN][r arrow][ital N][Delta] observables are substantial.

• OSTI ID: 5004552
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 49:4; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

662340 -- Hadron Interactions-- (1992-)
663430* -- Nucleon-Induced Reactions & Scattering-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
AMPLITUDES
ANALYZING POWER
BARYON-BARYON INTERACTIONS
BARYONS
BORN APPROXIMATION
CROSS SECTIONS
DELTA BARYONS
DIFFERENTIAL CROSS SECTIONS
DWBA
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
HADRON-HADRON INTERACTIONS
HADRONS
INELASTIC SCATTERING
INTERACTIONS
ISOSPIN
MEV RANGE
MEV RANGE 100-1000
N BARYONS
NUCLEON-NUCLEON INTERACTIONS
PARTICLE INTERACTIONS
PARTICLE PROPERTIES
POLARIZATION
PROTON-NUCLEON INTERACTIONS
PROTON-PROTON INTERACTIONS
RESONANCE
SCATTERING
TOTAL CROSS SECTIONS
TRANSITION AMPLITUDES