ADOPTED LEVELS, GAMMAS for 36Mg
Author: Balraj Singh | Citation: ENSDF | Cutoff date: 21-MAY-2021
Author: Balraj Singh | Citation: ENSDF | Cutoff date: 12-MAR-2019
Authors: Ninel Nica, John Cameron and Balraj Singh | Citation: Nucl. Data Sheets 113, 1 (2012) | Cutoff date: 31-Dec-2011
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=1443×101 keV 71 | S(n)= 333×101 keV 74 | S(p)= 24740 keV SY | Q(α)= -19040 keV SY | ||
| Reference: 2021WA16 |
| References: | |||
| A | 1H(36Mg,36Mg’γ) | B | 9Be(38Si,36MgG) |
| C | C(37Al,36Mg) | D | C(40Al,36MgG),1H(40Al,36Mg) |
| E | PB(36Mg,36Mg’γ) | F | PB(37Mg,36MgG) |
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 0 | ABCDEF | 0+ | 7.6 ms +5-8 % β- = 100 % β-n = ? | |||||
| 662 5 | ABCDEF | 2+ | 41 ps +12-8 | 662 5 | 100 | [E2] | 0 | 0+ |
| 2008 26 | CD F | (4+) | 1346 25 | 100 | 662 | 2+ | ||
E(level): From Eγ values.
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Additional Data |
| 662 | 2+ | 41 ps +12-8 | 662 5 | [E2] | B(E2)(W.u.)=15.0 35 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0 | 0+ | 7.6 ms +5-8 % β- = 100 % β-n = ? | %β-n=48 12 (1999YoZW, preliminary value). E(level): %β-n=48 12 (1999YoZW, preliminary value). Partial cross sections in 9Be(38Si,Xγ) reaction (2007Ga34) and wave functions are found (by 2007Ga34) to be dominated by intruder configurations as suggested by large-scale Monte Carlo shell-model calculations in the island of inversion. |
| 662 | 2+ | 41 ps +12-8 | B(E2)=0.053 12 (2016Do03) E(level): Partial cross sections in 9Be(38Si,Xγ) reaction (2007Ga34) and wave functions are found (by 2007Ga34) to be dominated by intruder configurations as suggested by large-scale Monte Carlo shell-model calculations in the island of inversion. |
| 2008 | (4+) | XREF: F(?). |
| E(level) | E(gamma) | Comments |
| 662 | 662 | E(γ): weighted average of 659 6 (2019Cr02, (40Al,36Mgγ)); 666 5 (2016Do03, Pb(36Mg,36Mg’γ)); 656 13 (2014Mi09, 1H(36Mg,36Mg’γ)); 662 6 (2013Do22, (37Al,36Mgγ)); and 660 6 (2007Ga34, (38Si,36Mgγ)). |
| 2008 | 1346 | E(γ): weighted average of 1319 21 (2019Cr02, (40Al,36Mgγ)); and 1370 20 (2013Do22, (37Al,36Mgγ)) |
With the identification of g.s. and first 2+ state as intruder levels (2007Ga34), this nuclide has been characterized as situated in the so called ’island of inversion’.
1989Gu03: 181Ta(48Ca,X) E=55 MeV/nucleon, GANIL. Particle stability of 36Mg first established.
1999YoZW: 9Be,181Ta(48Ca,X) E=70 MeV/nucleon, RIKEN. Measured half-life, %β-n, very preliminary results.
2004Gr20, 2003Gr22: 36Mg from fragmentation of 60 MeV/nucleon 48Ca beam with 9Be target, time-of-flight and energy loss methods to identify fragments, LISE-3 spectrometer at GANIL. Measured isotopic half-life
2007Ta15: 9Be,W(48Ca,X), measured production cross section
2007Ga34: 9Be(38Si,Xγ), established intruder character of g.s. and first excited 2+ state; NSCL
Mass measurements: 2007Ju03, 2000Sa21 (also 2001Sa72)
Theory references: consult the NSR database (www.nndc.bnl.gov/nsr/) for 37 primary references for structure calculations.
36Na is experimentally found (2002Lu09,2002No11) to be particle unstable, thus it does not decay by β- to 36Mg.
37Na nuclide is known (2004Lu19,2003Lu11,2002Lu09,2002Lu19,2002No11) to be particle stable, but no experimental information is available for b- delayed neutron decay to 36Mg.
Q-value: Estimated uncertainties (2021Wa16): ΔS(p)=960, ΔQ(α)=850
Q-value: Q(β-n)=12530 690, S(2n)=4090 690, S(2p)=47040 860 (syst) (2021Wa16). Q(β-2n)=1237 690, deduced by the evaluator from mass values in 2021Wa16