Momentum-space approach to pion-nucleus scattering above the Delta resonance

Conference · Tue Dec 01 04:00:00 EST 1987 · AIP Conf. Proc.; (United States)

OSTI ID:5580597

Ernst, D J

The pion-nucleus interaction is investigated in the energy region 300--500 MeV. The qualitative features of the interaction, including the isospin dependence of the two-body amplitude and the increasing penetrability of the pion, are reviewed. The convergence of multiple scattering theory in this energy range is discussed. The recent data for pion single-charge exchange to the isobaric analogue state is compared to the theoretical results produced by a microscopic, momentum-space, isospin invariant optical potential. The optical potential utilizes fully relativistic kinematics and the fermi integration is performed exactly. A new model for the pion-nucleon D- and F-wave channels is necessary in order to extend this approach to the optical potential to higher energies. This model, a 'doorway resonance' model, is reviewed. Plans for future work is outlined.

• Research Organization: Texas AandM University, College Station, Texas 77843
• OSTI ID: 5580597
• Report Number(s): CONF-8708102-
• Conference Information: Journal Name: AIP Conf. Proc.; (United States) Journal Volume: 163:1
• Country of Publication: United States
• Language: English

Related Subjects

653003* -- Nuclear Theory-- Nuclear Reactions & Scattering
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CHARGE EXCHANGE
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
ENERGY LEVELS
ENERGY RANGE
HADRON REACTIONS
IMPULSE APPROXIMATION
ISOBARIC ANALOGS
ISOSPIN
MESON REACTIONS
MEV RANGE
MEV RANGE 100-1000
NUCLEAR REACTIONS
OPTICAL MODELS
PARTICLE PROPERTIES
PION REACTIONS