PION RESONANCES

Journal Article · Sat Apr 16 04:00:00 EST 1960 · Nuovo Cimento (Italy) Divided into Nuovo Cimento A and Nuovo Cimento B

DOI:https://doi.org/10.1007/BF02860295· OSTI ID:4120554

Sakurai, J J

A discussion is presented concerning possible resonances in two- and three-pion systems. Frazer and Fulco showed that a two-pion resonance in T = 1, J = 1 can account for the large isovector moment of the nucleon. It is expected that this resonance would be helpful not only in understanding the isovector part of the nucleon structure but"-in attacking the two-pion contribution in N--N nnd pi --N scattering. Considerations are given which rule out a repulsive core in the N--N case, resulting in the conclusion that the repulsive core in the N--N case is due to a three-pion state. The view is expressed taat there exists a three-pion resonsnce in T = 0, J = 1, which throws light on the isoscalar part of nucleon structure. Recently, a theory of strong interactions was proposed which unambiguously predicts the existence of one two-pion resonance in T = 1, J = 1 and two three-pion resonances bcth in T = 0, J = 1. Since a three-pion resonance was proposed by Chew, the variations of the Chew theory and the vector theory of strong interactions are emphasized. (B.O.G.)

• Research Organization: Univ. of Chicago
• Sponsoring Organization: USDOE
• NSA Number: NSA-15-002101
• OSTI ID: 4120554
• Journal Information: Nuovo Cimento (Italy) Divided into Nuovo Cimento A and Nuovo Cimento B, Journal Name: Nuovo Cimento (Italy) Divided into Nuovo Cimento A and Nuovo Cimento B Vol. Vol: (10) 16; ISSN NUCIA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

INTERACTIONS
MESONS
NUCLEONS
PHYSICS
PI MESONS
PIONS
QUANTUM MECHANICS
RESONANCE
SCATTERING