학술논문

Large β-Delayed One and Two Neutron Emission Rates in the Decay of 86Ga.

Document Type

Article

Author

Miernik, K.; Rykaczewski, K. P.; Gross, C. J.; Grzywacz, R.; Madurga, M.; Miller, D.; Batchelder, J. C.; Borzov, I. N.; Brewer, N. T.; Jost, C.; Korgul, A.; Mazzocchi, C.; Mendez II, A. J.; Liu, Y.; Paulauskas, S. V.; Stracener, D. W.; Winger, J. A.; Wolinska-Cichocka, M.; Zganjar, E. F.

Source

Physical Review Letters. 9/27/2013, Vol. 111 Issue 13, p132502-1-132502-5. 5p.

Subject

*NEUTRON emission
*GALLIUM spectra
*RESONANCE ionization spectroscopy
*ELECTROMAGNETISM
*GERMANIUM isotopes

Language

ISSN

0031-9007

Abstract

Beta decay of 86Ga was studied by means of β-neutron-γ spectroscopy. An isotopically pure 86Ga beam was produced at the Holifield Radioactive Ion Beam Facility using a resonance ionization laser ion source and high-resolution electromagnetic separation. The decay of 86Ga revealed a half-life of 43-15+21 ms and large β-delayed one-neutron and two-neutron branching ratios of P1n=60(10)% and P2n=20(10)%. The βγ decay of 86Ga populated a 527 keV transition that is interpreted as the deexcitation of the first 2+ state in the N=54 isotone 86Ge and suggests a quick onset of deformation in Ge isotopes beyond N=50. [ABSTRACT FROM AUTHOR]

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