ADOPTED LEVELS for 56K
Author: Balraj Singh | Citation: ENSDF | Cutoff date: 25-Mar-2022
Author: Balraj Singh | Citation: ENSDF | Cutoff date: 31-OCT-2011
Authors: Huo Junde, Huo Su, Yang Dong | Citation: Nucl. Data Sheets 112, 1513 (2011) | Cutoff date: 29-Oct-2009
Author: Balraj Singh | Citation: ENSDF | Cutoff date: 30-APR-2009
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=21490 keV SY | S(n)= 560 keV SY | S(p)= 19120 keV CA | Q(α)= -16800 keV SY | ||
| Reference: 2021WA16,2019MO01 |
| E(level) (keV) | T1/2(level) |
| 0 | % β- = 100 % β-n = ? % β-2n = ? % B-3N = ? % B-4N = ? |
Additional Level Data and Comments:
2009Ta24, 2009Ta05: 56K identified by fragmentation of 76Ge beam at 132 MeV/nucleon with W target at NSCL facility using A1900 fragment separator combined with S800 analysis beam line to form a two stage separator system. The transmitted fragments were analyzed event-by-event in momentum and particle identification. The nuclei of interest were stopped in eight Si diodes which provided measurement of energy loss, nuclear charge and total kinetic energy. The time-of-flight of each particle that reached the detector stack was measured in four different ways using plastic scintillators, Si detectors, and parallel-plate avalanche counters. The simultaneous measurement of ΔE signals, the magnetic rigidity, total kinetic energy and the time-of-flight (tof) provided unambiguous identification of the atomic number, charge state and mass number.
Theoretical calculations: only one primary reference extracted from the NSR database (www.nndc.bnl.gov/nsr/) is listed under document records.
Q-value: S(p) from theory (2019Mo01). Other values are from 2019Mo01
Q-value: Estimated uncertainties (2021Wa16): 650 for Q(β-), 780 for S(n), 920 for Q(α)
Q-value: Q(β-n)=18560 620, S(2n)=3010 720 (syst, 2021Wa16). S(2p)=43320 (theory,2019Mo01).
Q-value: Q(β-2n)=17000 600 (syst), Q(β-3n)=13160 600 (syst), Q(β-4n)=9960 600 (syst), Q(β-5n)=3950 600 (syst) deduced by evaluator from relevant mass excesses in 2021Wa16