Pion-deuteron scattering sensitivity to the nucleon-nucleon hard core

Journal Article · Mon Jun 01 04:00:00 EDT 1981 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.23.2632· OSTI ID:6381421

Garcilazo, H

We calculate pion-deuteron elastic scattering at 142, 181, and 254 MeV, using four separable models of the off-shell nucleon-nucleon T matrix. The form factors for two of these models were obtained by fitting the low-energy data, as well as the change of sign of the phase shifts at T/sub lab/> or approx. =300 MeV, by means of energy-dependent separable potentials. These form factors have ranges in momentum space which are larger than those of the Yamaguchi potentials. We find that the differential cross section for pion-deuteron scattering is very sensitive to the off-shell behavior of the nucleon-nucleon T matrix. We also find that it is possible to fit the data at 254 MeV by using the long-range form factors that take into account the hard core, although the data at 142 MeV is better described using shorter ranges.

• Research Organization: Physics Department, Texas A and M University, College Station, Texas 77843
• OSTI ID: 6381421
• Journal Information: Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 23:6; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

651215* -- Nuclear Properties & Reactions
A=1-5
Theoretical-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DEUTERIUM TARGET
DIFFERENTIAL CROSS SECTIONS
ELASTIC SCATTERING
ENERGY DEPENDENCE
ENERGY RANGE
FORM FACTORS
HADRON REACTIONS
HARD-CORE POTENTIAL
MANY-BODY PROBLEM
MATHEMATICAL MODELS
MATRICES
MESON REACTIONS
MEV RANGE
MEV RANGE 100-1000
NUCLEAR MODELS
NUCLEAR POTENTIAL
NUCLEAR REACTIONS
PARTICLE PROPERTIES
PHASE SHIFT
PION REACTIONS
POTENTIALS
S MATRIX
SCATTERING
SHELL MODELS
TARGETS
THREE-BODY PROBLEM