ADOPTED LEVELS for 44P
Authors: Jun Chen and Balraj Singh | Citation: Nucl. Data Sheets 190, 1 (2023) | Cutoff date: 20-Jun-2023
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=20310 keV SY | S(n)= 2000 keV SY | S(p)= 20510 keV SY | Q(α)= -20140 keV SY | ||
| Reference: 2021WA16 |
| E(level) (keV) | T1/2(level) |
| 0 | 18.2 ms 10 % β- = 100 % β-n = 75 8 % β-2n = ? % B-3N = ? % B-4N = ? |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0 | 18.2 ms 10 % β- = 100 % β-n = 75 8 % β-2n = ? % B-3N = ? % B-4N = ? | Theoretical T1/2=53 ms, %β-n=17.3, 17.7; %β-2n=18.6, 23.5; %β-3n=0.047, 0.11; %β-4n=0 (2021Mi17); two values for different fission barriers. E(level): Theoretical T1/2=53 ms, %β-n=17.3, 17.7; %β-2n=18.6, 23.5; %β-3n=0.047, 0.11; %β-4n=0 (2021Mi17); two values for different fission barriers. |
1989Gu03: 44P first identified in 181Ta(48Ca,X) E=55 MeV/nucleon reaction followed by measurement of fragment spectra using LISE spectrometer at GANIL facility.
2004Gr20, 2003Gr22: Fragmentation of 48Ca beam at 60 MeV/nucleon with Be target. The fragments were separated using LISE3 spectrometer at GANIL facility. The fragment identification by energy loss and time-of-flight measurements using Si detectors. Measured γ, ce using a Si(Li) detector and two Ge clover detectors.
2022Cr03: 44P was produced in 9Be(48Ca,X),E(48Ca)=172.3 MeV/nucleon at the FRIB, MSU, followed by separation of fragments of interest using Advanced Rare Isotope Separator (ARIS), and delivered to the FRIB Decay Station initiator (FDSi) consisting of fast-response YSO (yttrium orthosilicate, Y2SiO5) scintillator implantation detector, 11 HPGe clover detectors, 15 fast-timing LaBr3 detectors, and 88 neutron detectors of the VANDLE array. Deduced particle identification plot of Z versus α/Q. Measured T1/2 of 44P decay from (implants)β-correlated decay curve.
2022Tr03: 44P produced in 9Be(48Ca,X),E(48Ca)=140 MeV/nucleon, and reaction products separated by A1900 fragment separator at the NSCL-MSU facility. Selected isotopes were transported to the Beta Counting System (BCS) consisting of Double-Sided Silicon Strip Detector (DSSD), two Si PIN detectors, and 16 Clover HPGe detectors. Measured half-life of the decay of 44P, %β-n for the decay of 44P by following the decay chain of 44P through β- and β-n decay daughters, Eγ.
Mass measurement: 2007Ju03
2010Ga15: theory: calculated levels, Jπ using shell model.
Theoretical calculations: two references for radioactive decays retrieved from the NSR database (www.nndc.bnl.gov/nsr/) are listed in document records which can be accessed via web-based ENSDF database
Q-value: Estimated uncertainties (2021Wa16): 400 for Q(β-), 500 for S(n), 570 for S(p), and 500 for Q(α)
Q-value: S(2n)=6130 410, S(2p)=45460 640, Q(β-n)=15230 400 (syst,2021Wa16). Q(β-2n)=12610 400, Q(β-3n)=5910 400, Q(β-4n)=1660 400 deduced by evaluators from relevant mass excesses in 2021Wa16