Coulomb excitation of the 242mAm isomer

Conference · Tue Oct 24 00:00:00 EDT 2006

OSTI ID:896621

Hayes, A; Cline, D; Moody, K; Wu, C; Becker, J; Carpenter, M; Carroll, J; Gohlke, D; Greene, J; Hecht, A; Janssens, R; Karamian, S; Lauritsen, T; Lister, C; Macri, R; Propri, R; Seweryniak, D; Wang, X; Wheeler, R; Zhu, S

The {sup 242m}Am isomer, a well-known candidate for photo-depopulation research, has been studied in this first ever Coulomb excitation of a nearly pure ({approx} 98%) isomer target. Thirty new states, including a new rotational band built on a K{sup {pi}} = 6{sup -} state have been identified. Strong K-mixing results in nearly equal populations of the K{sup {pi}} = 5{sup -} and 6{sup -} states. Newly identified states have been assigned to the K{sup {pi}} = 3{sup -} rotational band, the lowest states of which are known to decay into the ground-state band. Implications regarding K-mixing and Coulomb excitation paths to the ground state are discussed.

• Research Organization: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 896621
• Report Number(s): UCRL-CONF-225750; TRN: US0700810
• Resource Relation: Conference: Presented at: Coulomb excitation of the 242mAm isomer, Nizhny Novgorod, Russia, Jun 29 - Jul 03, 2006
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
COULOMB EXCITATION
DECAY
GROUND STATES
ISOMERS
ROTATIONAL STATES