Multi-nucleon phenomena in pion-nucleus reactions

Conference · Mon Jan 01 04:00:00 EST 1990

DOI:https://doi.org/10.1016/0375-9474(91)90105-F· OSTI ID:6634870

Gram, P A.M.

At the peak of the delta resonance, the pion is the most strongly interacting particle we know. It follows that interactions between pions and nuclei at these energies all tend to involve multiple scattering to some degree. Multiple scattering includes different kinds of processes. In its simplest forms, it involves a sequence of interactions with single nucleons that take place as the pion bumbles its way through a nucleus. Much more interesting is the possibility that there are interactions that in some sense directly involve several nucleons at once. If there are such interactions, can we distinguish between them and the simpler, more prosaic forms of multiple scattering Experimental study of pion-nucleus reaction mechanisms has produced intriguing suggestions that truly multi-nucleon interactions do occur. They are the subject of this paper. To develop this subject I will focus on reactions that cannot happen at all without the essential participation of two or more nucleons.

• Research Organization: Los Alamos National Lab., NM (USA)
• Sponsoring Organization: DOE/ER
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 6634870
• Report Number(s): LA-UR-90-2737; CONF-900601--6; ON: DE90016510
• Country of Publication: United States
• Language: English

Related Subjects

651220* -- Nuclear Properties & Reactions
A=1-5
Experimental
651520 -- Nuclear Properties & Reactions
A=39-58
Experimental
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALKALINE EARTH ISOTOPES
ANGULAR DISTRIBUTION
CALCIUM ISOTOPES
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DISTRIBUTION
HADRON REACTIONS
HELIUM 3 TARGET
HELIUM 4 TARGET
ISOTOPES
MESON REACTIONS
NUCLEAR REACTIONS
PION REACTIONS
SCATTERING
TARGETS