Nuclear bound states of the eta/sup 0/ meson and pion double-charge-exchange reactions

Journal Article · Thu Oct 01 00:00:00 EDT 1987 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.36.1636· OSTI ID:6203336

Haider, Q; Liu, L C

We predict a narrow resonance structure (GAMMAapprox. =10 MeV) in the excitaton function of (..pi../sup +/,..pi../sup -/) double-charge-exchange reactions at a pion kinetic energy of --419 MeV. This structure is due to the interference between the usual ..pi../sup +/..--> pi../sup 0/..--> pi../sup -/ double-charge-exchange amplitudes, which have a smooth energy dependence, and a resonant ..pi../sup +/..-->..eta/sup 0/..--> pi../sup -/ high-energy double-charge-exchange amplitude associated with the formation of a strongly bound eta-nucleus system. The latter process leads to a novel feature of the pion-nucleus interaction, the mesonic compound nucleus resonance.

• Research Organization: Los Alamos National Laboratory, Los Alamos, New Mexico 87545
• OSTI ID: 6203336
• Journal Information: Phys. Rev. C; (United States), Vol. 36:4
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
PION PLUS REACTIONS
CHARGE-EXCHANGE REACTIONS
BOUND STATE
CARBON 14
COMPOUND-NUCLEUS REACTIONS
CROSS SECTIONS
ENERGY DEPENDENCE
ETA MESONS
GREEN FUNCTION
MEV RANGE 100-1000
OXYGEN 14
PIONS MINUS
S MATRIX
WAVE FUNCTIONS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
BOSONS
CARBON ISOTOPES
CHARGED-PARTICLE REACTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
EVEN-EVEN NUCLEI
FUNCTIONS
HADRON REACTIONS
HADRONS
ISOTOPES
LIGHT NUCLEI
MATRICES
MESON REACTIONS
MESONS
MEV RANGE
MINUTES LIVING RADIOISOTOPES
NUCLEAR REACTIONS
NUCLEI
OXYGEN ISOTOPES
PION REACTIONS
PIONS
PSEUDOSCALAR MESONS
RADIOISOTOPES
YEARS LIVING RADIOISOTOPES
653003* - Nuclear Theory- Nuclear Reactions & Scattering