INDUCED PSEUDOSCALAR INTERACTION AND THE LOW-ENERGY ANOMALIES IN BETA SPECTRA

Journal Article · Tue May 01 04:00:00 EDT 1962 · Physical Review (U.S.) Superseded in part by Phys.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.126.1100· OSTI ID:4823514

Pearson, J M

S> An unsuccessful attempt is made to interpret in terms of the induced pseudoscalar interaction the (1 + a/W) anomaly factors found by Langer, et al., in the shapes of the allowed Gamow-Teller beta spectra. The observation that the Hamiltonian of the induced pseudoscalar interaction in nuclear beta decay differs from that of the basic'' pseudoscalar interaction is tsken into account. The shape factors for the transitions in question are derived to display an anomaly of the required form. In the case of pure GamowTeller transitions, arbitrarily large distortions are possible provided that an appropriate destructive interference takes place between the axial vector and induced pseudoscalar terms. For a mixed Fermi-Gamow-Teller transition there is a definite upper limit to the amount of distortion which the induced pseudoscalar interaction can cause. This limit is greatly exceeded by the Zr/sup 89/ spectrum; the anomaly must have some other origin. Until the reason for these anomalies is understood, it would be unsafe to draw any conclusion concerning the strength of the induced pseudoscalar interaction on the basis of low-energy spectrum shapes. (auth)

• Research Organization: Universite de Montreal, Can.
• NSA Number: NSA-16-023116
• OSTI ID: 4823514
• Journal Information: Physical Review (U.S.) Superseded in part by Phys.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 D, Journal Name: Physical Review (U.S.) Superseded in part by Phys.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

BETA PARTICLES
DIFFERENTIAL EQUATIONS
ENERGY LEVELS
INTERACTIONS
NUCLEI
PHYSICS
SPECTRA
TRANSIENTS
VECTORS
ZIRCONIUM 89