beta. -. gamma. angular correlation in /sup 20/F: The second class current problem

Journal Article · Fri Dec 01 04:00:00 EST 1978 · Phys. Rev., C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.18.2704· OSTI ID:6505844

Tribble, R E; May, D P

The ..beta..-..gamma.. angular correlation in the decay of /sup 20/F has been measured using a symmetric four detector system and an activated LiF target. /sup 20/F was produced by the /sup 19/F(d,p)/sup 20/F reaction using a low-energy deuteron beam (E/sub d/ = 2 MeV). Correlation data were acquired for theta/sub betahyphengamma/ = 90/sup 0/ and theta/sub betahyphengamma/ = 180/sup 0/, and these data were anlayzed for systematic differences as a function of electron energy (E/sub ..beta../). We report a corrected first order slope to the ratio of ..beta.. spectra N (180/sup 0/)/N (90/sup 0/) of (+ 0.5 +- 0.7)10/sup -3/ (MeV)/sup -1/, with an intercept for this ratio of 1.001 +- 0.002. Incorporating this value for the slope with other data on the A = 20 system, we find an upper limit for the second class current contribution to the correlation which is less than 1/3 of the contribution of weak magnetism and consistent with zero.

• Research Organization: Cyclotron Institute, Texas AM University, College Station, Texas 77843
• OSTI ID: 6505844
• Journal Information: Phys. Rev., C; (United States), Journal Name: Phys. Rev., C; (United States) Vol. 18:6; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

651412* -- Nuclear Properties & Reactions
A=20-38
Theoretical-- Radioactive Decay-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALGEBRAIC CURRENTS
ANGULAR CORRELATION
BASIC INTERACTIONS
BETA DECAY
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY
BETA-MINUS DECAY RADIOISOTOPES
CHARGED-PARTICLE REACTIONS
CORRELATIONS
CURRENTS
DECAY
DEUTERON REACTIONS
DIRECT REACTIONS
ENERGY RANGE
FLUORINE 19 TARGET
FLUORINE 20
FLUORINE ISOTOPES
GAMMA SPECTRA
INTERACTIONS
ISOTOPES
LIGHT NUCLEI
MEV RANGE
MEV RANGE 01-10
NUCLEAR REACTIONS
NUCLEI
ODD-ODD NUCLEI
PROTON SPECTRA
RADIOISOTOPES
SECOND-CLASS CURRENTS
SECONDS LIVING RADIOISOTOPES
SPECTRA
STRIPPING
TARGETS
TRANSFER REACTIONS
WEAK INTERACTIONS