STUDIES OF ELECTROMAGNETIC TRANSITIONS IN N$sup 14$ BY MEANS OF THE C$sup 12$(He$sup 3$,p)N$sup 14$ REACTION
The electromagnetic decays of the /sup 14/N states between 5 and 6.5 Mev were studied using the /sup 12/C(/sup 3/He,p)/sup 14/N reaction. From investigations of the gamma spectra on and off the 3.0-Mev resonance for production of the /sup 14/N 6.44-Mev level this state was found to decay to the ground, 3.95-, and 5.10Mev levels of /sup 14/N with branching ratios of (65 plus or minus 3%), (21 plus or minus pairs corresponding to the 6.21 yields 2.31 transition, this transition was shown to be predominantiy M1 so that the /sup 14/ N 6 21-Mev level has even parity. Similarly, it was confirmed that the /sup 14/N 6.44 yields 0 transition is predominantiy E2. The angular distributions of the gamma rays from /sup 12/C + /sup 3/He at E3/sub He/ = 2.75 Mev were measured. It was shown that the mixing parameter x (amplitude ratio of quadrupole to dipole radiation) for the 5.69 yields 0 transition is x = -0.12 plus or minus 0.03. The branching ratios of the /sup 14/N 5.10-, 5.69-, and 6.21-Mev levels to the / sup 14/N ground state and 2.31-Mev first excited state were measured. The results are in satisfactory agreement with previous determinations. (auth)
- Research Organization:
- Brookhaven National Lab., Upton, N.Y.
- NSA Number:
- NSA-18-019101
- OSTI ID:
- 4050002
- Report Number(s):
- BNL-7543; 0031-899X
- 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- Physical Review (U.S.) Superseded in part by Phys.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 D, Journal Name: Physical Review (U.S.) Superseded in part by Phys.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: 134; ISSN PHRVA
- Country of Publication:
- United States
- Language:
- English
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