GENERALIZED ISOBAR MODEL, AND THE PIONIC FORM FACTOR OF THE NUCLEON

Journal Article · Mon Aug 15 04:00:00 EDT 1960 · Phys. Rev. Letters

DOI:https://doi.org/10.1103/PhysRevLett.5.163· OSTI ID:4136882

Selove, W

It is pointed out that in a simple model in which the isobar is excited by a virtual pion, the deviations can be understood in a simple way in terms of the decreasing probability of isobar excitation for increasing fourmomenta transfer between colliding nucleons. This model predicts moderately well-defined peaks in the inelastic spectrum, corresponding to the various nucleon isobars. These isobars are in turn considered to correspond to the peaks in the pi -N cross section; the first three correspond to isobar masses M/sub 1/' = 1.23 Bev, M/sub 2/' = 1.52 Bev, and M/sub 3/' = 1.67 Bev. The predominant features of the experimental results are outlined. (B.O.G.)

• Research Organization: Univ. of Pennsylvania, Philadelphia
• NSA Number: NSA-14-024807
• OSTI ID: 4136882
• Journal Information: Phys. Rev. Letters, Journal Name: Phys. Rev. Letters Vol. Vol: 5
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

CROSS SECTIONS
EXCITATION
FORM FACTOR
ISOBARIC MODEL
MASS
NUCLEONS
PARTICLE MODELS
PHYSICS
PIONS
SCATTERING
SPECTRA