Angular distribution of photo-protons from deformed nuclei

Journal Article · Fri Dec 01 00:00:00 EST 1961 · Nuclear Physics

DOI:https://doi.org/10.1016/0029-5582(61)90068-2· OSTI ID:4803237

Gustafson, Torsten

The angular distribution of photoprotons emitted from deformed nuclei may be anisotropic because of several processes. The coupling of the angular momentum of the parent nucleus with those of the daughter nucleus and the emitted proton is very important for the distribution. Furthermore, the surface value of the proton wave function may vary strongly from the pole to the equator of the deformed nucleus. The proton while passing the Coulomb barrier feels' the anisotropy and exchanges angular momentum with the nucleus to a considerably smaller degree than an alpha -particle, especially with light nuclei. Angular distributions, illustrating these effects, are given for Mg/sup 24/ and Np/sup 234/. Further, we approach the classical case of fixed axes, where the influence of the surface values of a proton wave function clearly exhibits itself. The total decay probabilities for the deformed nuclei considered deviate only slightly from those of a spherical nucleus, namely by factors between 0.84 and l.25. (auth)

• Research Organization: Inst. of Theoretical Physics, Lund, Sweden
• Sponsoring Organization: USDOE
• NSA Number: NSA-16-007079
• OSTI ID: 4803237
• Journal Information: Nuclear Physics, Vol. 28, Issue 4; Other Information: Orig. Receipt Date: 31-DEC-62; ISSN 0029-5582
• Publisher: Elsevier
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

PHYSICS
ANGULAR DISTRIBUTION
ANGULAR MOMENTUM
ANISOTROPY
BETA SPECTROMETERS
CAPTURE
COINCIDENCE METHODS
DECAY
DEFORMATION
ELECTRIC FIELDS
ELECTRONS
ENERGY LEVELS
EUROPIUM 152
GADOLINIUM 152
INTERNAL CONVERSION
MAGNESIUM 24
MEASURED VALUES
MOMENTUM
NEPTUNIUM 234
NUCLEAR MODELS
NUCLEI
PHOTOPRODUCTION
PROBABILITY
PROTONS
QUANTUM MECHANICS
SAMARIUM 152
STATISTICS