New structure information on Mg-30, Mg-31 and Mg-32

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Title:	New structure information on Mg-30, Mg-31 and Mg-32
Keywords:	[PACS] Lifetimes, widths [PACS] γ transitions and level energies [PACS] Properties of specific nuclei listed by mass ranges: 20 ≤ A ≤ 38
Publisher:	Società Italiana di Fisica Springer
Description:	5 pages, 10 figures.-- PACS nrs.: 21.10.Tg; 23.20.Lv; 27.30.+t.-- Issue title: "ENAM 2004, Fourth International Conference on Exotic Nuclei and Atomic Masses" (Pine Mountain, Georgia, Sep 12-16, 2004). The fast timing βγγ(t) method was applied to investigate the level lifetimes in 30,31,32Mg. Levels in Mg have been populated in β and β-delayed neutron emission of Na, at the ISOLDE facility. From the γγ coincidences a number of new states have been identified and new level schemes were constructed for 30 31,32Mg. The following preliminary half lives have been determined: T-1/2 = 3.9(4) ns for the 1789 keV state in 30Mg, T-1/2 = 133(8) ps and 10.5(8) ns for the 221 keV and 461 keV states in 31Mg, respectively, and T-1/2 = 16(4) ps for the 885 keV level in 32Mg. The 1789 keV level was established as a candidate for the intruder 0(+) configuration in 30Mg with a possible strong E0 branch to the ground state. Peer reviewed
URI:	http://dspace.mediu.edu.my:8181/xmlui/handle/10261/4753
Other Identifiers:	The European Physical Journal A: Hadrons and Nuclei 25(Suppl.1): 105-109 (2005) 1434-6001 (Print) 1434-601X (Online) http://hdl.handle.net/10261/4753 10.1140/epjad/i2005-06-159-0
Appears in Collections:	Digital Csic

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