REGGE POLES AND RESONANCES IN STRONG INTERACTION

Journal Article · Tue May 01 04:00:00 EDT 1962 · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D

DOI:https://doi.org/10.1103/PhysRev.126.1220· OSTI ID:4823737

Wong, D Y

The scattering of two particles via the exchange of a resonance system is considered. The exchanged resonance is approximated by a pole in the Regge representation. The composite nature of the resonance is taken into account in the Regge-pole description so that divergence difficulties are not encountered even though the exchanged resonance may be in a J = l state. The exchange of a pi pi (I = 1, J = 1) resonance in pion-pion scattering is considered. This exthe I = 1 scattaring system. Whether this exchange force can reproduce a resonance at the observed energy depends on a dimensionless parameter in the representation. This dimensionless parameter is restricted to be positive and of order unity on the basis of a crude uncertainty-principle argument. The value of the parameter required to reproduce a resonance does fall within this range. However, the width of the calculated resonance is broader than the observed width by a factor of 2 to 3. This discrepancy is not unexpected since all other forces in the problem were not considered. (auth)

• Research Organization: Univ. of California, San Diego, LaJolla, Calif.
• NSA Number: NSA-16-022915
• OSTI ID: 4823737
• Journal Information: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 126; ISSN PHRVA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ELEMENTARY PARTICLES
FIELD THEORY
INTERACTIONS
PHYSICS
PIONS
REACTION KINETICS
REGGE POLES
RESONANCE
SCATTERING
STRONG INTERACTIONS
WIDTH