ADOPTED LEVELS, GAMMAS for 33Mg
Authors: Jun Chen and Balraj Singh | Citation: Nucl. Data Sheets 112, 1393 (2011) | Cutoff date: 31-Mar-2011
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=1.343×104 keV 8 | S(n)= 2280 keV 5 | S(p)= 2.114×104 keV 12 | Q(α)= -1.586×104 keV 10 | ||
| Reference: 2012WA38 |
| References: | |||
| A | 33Na β- decay (8.0 MS) | B | 34Na β-n decay (5.5 MS) |
| C | 1H(33Mg,33Mg’γ),(34Mg,33MgG) | D | 9Be(36Si,33MgG) |
| E | 197Au(33Mg,33Mg’γ) | ||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | Final Levels | |
| 0 | ABCDE | 3/2- | 90.5 ms 16 % β- = 100 % β-n = 14 2 | ||||
| 484.1 1 | A CDE | (3/2-) | 484.1 1 | 100 | 0 | 3/2- | |
| 546.2 1 | A C | 546.2 1 | 100 | 0 | 3/2- | ||
| 705.0 1 | A | (1/2+,3/2+,5/2+) | 221.0 1 704.9 1 | <38 100 9 | 484.1 0 | (3/2-) 3/2- | |
| 1242.4 1 | A D | (1/2+,3/2,5/2) | 758.2 1 1242.8 2 | 86 10 100 27 | 484.1 0 | (3/2-) 3/2- | |
| 3780 | A | ||||||
| 4000 | A | ||||||
Jπ(level): All assignments are tentative
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0 | 3/2- | 90.5 ms 16 % β- = 100 % β-n = 14 2 | μ=-0.7456 5 (2007Yo06) Matter radius (rms)=3.19 fm 3 (2011Ka01), deduced from the measured interaction cross section in C(33Mg,X) and H(33Mg,X) reactions at 900 MeV/nucleon with a (CH2)n target, and using Glauber model analysis with Fermi densities. The 33Mg secondary beam obtained from Be(48Ca,X) primary reaction. Experiment used fragment separator (FRS) at GSI. E(level): Matter radius (rms)=3.19 fm 3 (2011Ka01), deduced from the measured interaction cross section in C(33Mg,X) and H(33Mg,X) reactions at 900 MeV/nucleon with a (CH2)n target, and using Glauber model analysis with Fermi densities. The 33Mg secondary beam obtained from Be(48Ca,X) primary reaction. Experiment used fragment separator (FRS) at GSI. |
| 3780 | E(level): Decays to 32Mg by neutron emission. | ||
| 4000 | E(level): Decays to 32Mg by neutron emission. |
| E(level) | E(gamma) | Comments |
Identification: 1984Gu19: In(p,X) E=10 GeV, measured γ, isotopic half-life.
Later studies of 33Mg isotope (mass measurements and decay properties): 1991Zh24, 1991Or01, 2001Nu02, 2002Ra16, 2002Mo29, 2006Ga04
Measured mass excess=4947 22 keV (radio-frequency mass spectrometer, MISTRAL at ISOLDE facility: 2006Ga04,2006Lu09)
2007Yo06: 33Mg and 31Mg produced by bombarding a uranium carbide target with 1.4 GeV proton beam at ISOLDE-CERN facility followed by laser ionization to select Mg isotopes The radioactive beam of Mg ions was accelerated to 40 keV, sent through a mass analyzer and then to a collinear laser spectroscopy arrangement for the measurement of spin and magnetic moment by laser spectrometry and nuclear magnetic resonance. Measurements are made relative to 31Mg
2006Kh08: Cross section measurement in Si(33Mg,X) E=30-65 MeV/nucleon, deduced ’reduced strong absorption radius= 1.260 fm2 19. The 33Mg beam obtained from fragmentation of 48Ca beam with 181Ta target at GANIL facility.
Nearly pure 2p-2h configuration deduced from g-factor, evidence for this nucleus being in the middle of the "island of inversion "
Structure calculations: 1994Po05
2010Ka05: Measured the longitudinal momentum distribution of one neutron removal from 33Mg in ground state and the one-neutron removal cross-section, 74 4 mb.
2010Yo08: 33Mg produced at ISOLDE-CERN by 1.4 GeV protons impinging on a thick uranium-carbide target. Measured hyperfine structure and nuclear gyromagnetic ratio by combining laser spectroscopy with nuclear magnetic resonance.
2010Yo01, 2010Tr03: comments on 2008Tr07 for ground state parity of 33Mg
Q-value: Note: Current evaluation has used the following Q record 13477 76 2212 292.141×104 36-1.554×10327 2009AuZZ
Q-value: Q(β-n)=7937 89 (2009AuZZ), 7880 90 (2003Au03)