Nuclear Data Sheets for A = 180

Abstract

Spectroscopic data for all nuclei with mass number A=180 have been evaluated, and the corresponding level schemes from radioactive decay and reaction studies are presented. C u t o f f D a t e : A l l d a t a r e c e i v e d b y F e b r u a r y 2 0 1 5 h a v e b e e n e v a l u a t e d . T h e m a i n s o u r c e u s e d f o r b i b l i o g r a p h i c information is the nsr database (2014Pr09). General Policies and Organization of Material: see http://www.nndc.bnl.gov/nds/NDSPolicies.pdf. Acknowledgments: The author thanks J.K. Tuli for useful discussions concerning this evaluation. The author is also grateful to F. Kondev for a detailed review of this manuscript and to B. Singh and collaborators for the A=180 XUNDL compilations. G e n e r a l C o m m e n t s : T h e s t a t i s t i c a l a n a l y s i s o f γ -r a y d a t a a n d d e d u c e d l e v e l s c h e m e s i s c a r r i e d o u t t h r o u g h c o m p u t e r c o d e s a v a i l a b l e a t B r o o k h a v e n L a b ' s w e b s i t e : w w w . n n d c . b n l . g o v . T h e d i r e c t f e e d i n g ( s ) t o e x c i t e d s t a t e s i n β -a n d ε d e c a y s h a v e g e n e r a l l y b e e n c o m p u t e d b y t h e e v a l u a t o r f r o m I ( γ + c e ) i n t e n s i t y b a l a n c e s a t e a

Configurations and decay hindrances of high- K states in Hf180

“…2), consistent with the previously reported value of 0.57(2) µs [14]. For the K π = 6 + state, T 1/2 = 2.8(3) ns is obtained using the centroid-shift technique (Figs.…”

α -decay branching ratio of Pt180

“…where b α ( 180 Hg) = 48(2)% [11,12]. To evaluate N α ( 180 Pt), the E α = 4900-5900-keV region of Fig.…”

“…decays of even-A platinum (•), mercury ( ), and lead ( ) isotopes, calculated using the Rasmussen approach [2] with data taken from Refs. [8][9][10][11][12]26,27]. The open star is the δ 2 α ( 180 Pt) calculated using the results from the present work and Ref.…”

Shape phase mixing in critical point nuclei

“…Same as inTable Ibut for 178 Pt[67], 180 Pt[66], 182 Pt[68] and 184 Pt[69] rigidity in these two intervals of nuclei. First of all, we must mention the excellent agreement with experiment in the cases of 176,178 Os and 182 Pt.…”