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Identification of a millisecond isomeric state in Cd81129 via the detection of internal conversion and Compton electrons

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Title
Identification of a millisecond isomeric state in Cd81129 via the detection of internal conversion and Compton electrons
Author(s)
Taprogge J.; Jungclaus A.; Grawe H.; Nishimura S.; Xu Z.Y.; Doornenbal P.; Lorusso G.; Nacher E.; Simpson G.S.; Soderstrom P.-A.; Sumikama T.; Baba H.; Browne F.; Fukuda N.; Gernhauser R.; Gey G.; Inabe N.; Isobe T.; Jung H.S.; Kameda D.; Kim G.D.; Kim Y.K; Kojouharov I.; Kubo T.; Kurz N.; Kwon Y.K.; Li Z.; Sakurai H.; Schaffner H.; Steiger K.; Suzuki H.; Takeda H.; Vajta Z.; Watanabe H.; Wu J.; Yagi A.; Yoshinaga K.; Benzoni G.; Bonig S.; Chae K.Y.; Coraggio L.; Covello A.; Daugas J.-M.; Drouet F.; Gadea A.; Gargano A.; Ilieva S.; Kondev F.G.; Kroll T.; Lane G.J.; Montaner-Piza A.; Moschner K.; Mucher D.; Naqvi F.; Niikura M.; Nishibata H.; Odahara A.; Orlandi R.; Patel Z.; Podolyak Z.; Wendt A.
Publication Date
2014-11
Journal
PHYSICS LETTERS B, v.738, no., pp.223 - 227
Publisher
ELSEVIER SCIENCE BV
Abstract
The decay of an isomeric state in the neutron-rich nucleus 129Cd has been observed via the detection of internal conversion and Compton electrons providing first experimental information on excited states in this nucleus. The isomer was populated in the projectile fission of a 238U beam at the Radioactive Isotope Beam Factory at RIKEN. From the measured yields of γ -rays and internal conversion electrons, a multipolarity of E3 was tentatively assigned to the isomeric transition. A half-life of T1/2 = 3.6(2) ms was determined for the new state which was assigned a spin of (21/2+ ), based on a comparison to shell model calculations performed using state-of-the-art realistic effective interactions.
URI
http://pr.ibs.re.kr/handle/8788114/2940
DOI
10.1016/j.physletb.2014.09.047
ISSN
0370-2693
Appears in Collections:
HiddenCommunity > Journal Papers
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