ADOPTED LEVELS for 56Ca

Author: Balraj Singh |  Citation: ENSDF |  Cutoff date: 25-Mar-2022 

Author: Balraj Singh |  Citation: ENSDF |  Cutoff date: 31-OCT-2011 

Author: Balraj Singh |  Citation: ENSDF |  Cutoff date: 10-MAY-2009 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=1201×101 keV 36S(n)= 293×101 keV 30S(p)= 21270 keV SYQ(α)= -14560 keV SY
Reference: 2021WA16

General Comments:

1997Be70: 56Ca identified in 9Be(238U,F), E=750 MeV/nucleon, fragments separator (FRS) at GSI facility, identification by time-of-flight. Measured production cross section

2008Ma01: 56Ca isotope produced in 9Be(76Ge,X) reaction at E=140 MeV/nucleon 76Ge beam provided by NSCL at Michigan State University. Isotopes separated with A1900 fragment separator. Time-of-flight technique. Measured β particles using Beta Counting System of three Si PIN detectors, a double-sided silicon strip detector and six single sided silicon strip detectors. Detected γ rays using 16 Ge detectors of the Segmented Germanium array. Measured half-life of 56Ca by fitting the decay curves to a function which included decay of the parent, growth and decay of daughter and a constant background. No gamma rays were seen in correlation with β rays.

2018Mi08: measured mass excess

Theoretical structure calculations: 100 primary reference extracted from the NSR database (www.nndc.bnl.gov/nsr/) is listed under document records.

No level-scheme information is available from β- decay of 56K

Q-value: Estimated uncertainties (2021Wa16): 560 for S(p), 650 for Q(α)

Q-value: Q(β-n)=9260 260, S(2n)=4490 250, S(2p)=40650 840 (syst) (2021Wa16).

Q-value: Q(β-2n)=4785 250, Q(β-3n)=1046 250 deduced by evaluator from relevant mass excesses in 2021Wa16





E(level)
(keV)
Jπ(level) T1/2(level)
  0 0+ 11 ms 2 
% β- = 100
% β-n = ?
% β-2n = ?
% B-3N = ?

Back to top

Back to top

Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
  00+ 11 ms 2 
% β- = 100
% β-n = ?
% β-2n = ?
% B-3N = ?
Theoretical T1/2=24.2 ms, %β-n=8, %β-2n=0, %β-3n=0 (2019Mo01).
E(level): Theoretical T1/2=24.2 ms, %β-n=8, %β-2n=0, %β-3n=0 (2019Mo01).

Back to top