title: Effect of a triaxial nuclear shape on proton tunneling: the decay and structure of 145Tm.
abstract: Gamma rays deexciting states in the proton emitter 145Tm were observed using the recoil-decay tagging method. The 145Tm ground-state rotational band was found to exhibit the properties expected for an h{11/2} proton decoupled band. In addition, coincidences between protons feeding the 2{+} state in 144Er and the 2{+}-->0{+} gamma-ray transition were detected, the first measurement of this kind, leading to a more precise value for the 2{+} excitation energy of 329(1) keV. Calculations with the particle-rotor model and the core quasiparticle coupling model indicate that the properties of the pi{11/2} band and the proton-decay rates in 145Tm are consistent with the presence of triaxiality with an asymmetry parameter gamma approximately 20 degrees .
authors.affiliation: Argonne National Laboratory, Argonne, IL 60439, USA.
authors.forename: D
authors.initials: D
authors.lastname: Seweryniak
authors.forename: B
authors.initials: B
authors.lastname: Blank
authors.forename: M P
authors.initials: MP
authors.lastname: Carpenter
authors.forename: C N
authors.initials: CN
authors.lastname: Davids
authors.forename: T
authors.initials: T
authors.lastname: Davinson
authors.forename: S J
authors.initials: SJ
authors.lastname: Freeman
authors.forename: N
authors.initials: N
authors.lastname: Hammond
authors.forename: N
authors.initials: N
authors.lastname: Hoteling
authors.forename: R V F
authors.initials: RV
authors.lastname: Janssens
authors.forename: T L
authors.initials: TL
authors.lastname: Khoo
authors.forename: Z
authors.initials: Z
authors.lastname: Liu
authors.forename: G
authors.initials: G
authors.lastname: Mukherjee
authors.forename: A
authors.initials: A
authors.lastname: Robinson
authors.forename: C
authors.initials: C
authors.lastname: Scholey
authors.forename: S
authors.initials: S
authors.lastname: Sinha
authors.forename: J
authors.initials: J
authors.lastname: Shergur
authors.forename: K
authors.initials: K
authors.lastname: Starosta
authors.forename: W B
authors.initials: WB
authors.lastname: Walters
authors.forename: A
authors.initials: A
authors.lastname: Woehr
authors.forename: P J
authors.initials: PJ
authors.lastname: Woods
mesh_terms: D005720:Gamma Rays; D011522:Protons
chemical_list: D011522:Protons