139SB    9BE(238U,F):T1/2:XUNDL-2      2020WU04                           202101
139SB c  Compiled (unevaluated) dataset from 2020Wu04:                          
139SB2c  Phys Rev C 101, 042801(R) (2020)                                       
139SB c  Compiled by B. Singh (McMaster), Jan 23, 2021                          
139SB c  2020Wu04: {+139}Sb nuclide produced at the RIBF-RIKEN facility in      
139SB2c  {+9}Be({+238}U,F) reaction at E=345 MeV/nucleon and an intensity of    
139SB3c  5pnA. Identification of fission fragments of interest was made based on
139SB4c  time-of-flight (tof), magnetic rigidity (B|r), and energy loss (|DE)   
139SB5c  using the BigRIPS spectrometer, determining atomic Z and mass-to-charge
139SB6c  ratio A/Q, where Q=charge state of the ions. The separated nuclei      
139SB7c  were implanted at a rate of 100 ions/s in the beta counting system     
139SB8c  of the Wide range Active Silicon-Strip Stopper Array for Beta and      
139SB9c  ion detection (WAS3ABi), which included a stack of five Double Sided   
139SBAc  Silicon Strip Detectors (DSSSDs). The WAS3ABi setup was surrounded     
139SBBc  by Euroball RIken Cluster Array (EURICA) array of 84 HPGe detectors    
139SBCc  for |g detection. Half-life of the separated and implanted ions        
139SBDc  was determined by fitting the time distribution of |b(implants)- and/or
139SBEc  |b|g(implants)-correlated decay curves to the sum of activities of     
139SBFc  parent nuclei, daughter nuclei, grand-daughter nuclei, |b-delayed      
139SBGc  neutron daughter and grand-daughter nuclei, and a constant background. 
139SBHc  Comparison of measured half-lives with FRDM+QRPA (2003), FRDM+QRPA     
139SBIc  (2019), KTUY+GT2, RHB+pn-RQRPA, and DF+CQRPA theoretical calculations. 
139SB  L 0                               182 MS  9                              
139SB2 L %B-=100 $ %B-N=90 10 (2020Li32) $ %B-2N=?                              
139SB cL %B-$only the |b{+-} decay mode is expected and detected, followed by   
139SB2cL |b-delayed neutron decay                                               
139SB cL E$the observed activity is assumed to correspond to {+139}Sb g.s.      
139SB cL T$from 2020Wu04, fitting the time distribution of                      
139SB2cL (implanted ions)|b|g-correlated decay curves to the sum of activities  
139SB3cL of parent nuclei, daughter nuclei, grand-daughter nuclei, |b{+-}n      
139SB4cL daughter and grand-daughter nuclei, and a constant background. Authors 
139SB5cL compared their result with T{-1/2}=93 ms {I+14-3} from 2011Ar18:       
139SB6cL Phys. Rev. C 84, 061307; same value adopted in Oct 2016 ENSDF update   
139SB7cL of {+139}Sb, but with an uncertainty of 13 ms.                         
139SB cL $2020Li32 (evaluation): Nucl. Data Sheets 168, 1 (2020).