ADOPTED LEVELS, GAMMAS for 44S
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-)=11270 keV 90 | S(n)= 5080 keV 7 | S(p)= 21530 keV SY | Q(α)= -1730×101 keV 12 | ||
| Reference: 2021WA16 |
| References: | |||
| A | 44P β- decay (18.2 MS) | B | 45P β-n decay (24 MS) |
| C | 1H(44S,p’γ) | D | 9Be(45Cl,44SG) |
| E | 9Be(46Ar,44SG) | F | 9Be(48Ca,44SG) |
| G | Coulomb Excitation | ||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 0.0 | ABCDEFG | 0+ | 117 ms 6 % β- = 100 % β-n = 29 6 | |||||
| 1329.0 5 | A CDEFG | 2+ | 3.0 ps 4 | 1329.0 5 | 100 | [E2] | 0.0 | 0+ |
| 1365.0 10 | C EF | 0+ | 2.619 µs 26 % IT = 100 | 36S 1365 1 | | [E2] E0 | 1329.0 0.0 | 2+ 0+ |
| 1617 7 | F | 288 7 | 100 | 1329.0 | 2+ | |||
| 2150 11 | DE | (2+) | 2150 11 ? | 100 | 0.0 | 0+ | ||
| 2281.1 10 | A CDE G | (2+) | < 2.1 ps | 952 4 2281? | 100 <85 | 1329.0 0.0 | 2+ 0+ | |
| 2467 6 | CDE | (4+) | 63 ps 14 | 1138 6 | 100 | [E2] | 1329.0 | 2+ |
| 2632 11 | F | (2+) | 988 15 2632 11 | 50 100 | 1617 0.0 | 0+ | ||
| 3261 5 | C E | (2+) | 1897 6 ? 1931 7 | 100 15 15 15 | 1365.0 1329.0 | 0+ 2+ | ||
| 3311 7 | DE | (2+) | 1030 6 1979 19 | 42 8 100 21 | 2281.1 1329.0 | (2+) 2+ | ||
| 4027 13 | C | 2698 13 | 100 | 1329.0 | 2+ | |||
| 4509 26 | D | 1198 25 ? | 100 | 3311 | (2+) | |||
E(level): From a least-squares fit to γ-ray energies
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Additional Data |
| 1329.0 | 2+ | 3.0 ps 4 | 1329.0 5 | [E2] | B(E2)(W.u.)=4.9 +8-6 |
| 1365.0 | 0+ | 2.619 µs 26 % IT = 100 | 36 | [E2] | B(E2)(W.u.)=106 17 |
| 2467 | (4+) | 63 ps 14 | 1138 6 | [E2] | B(E2)(W.u.)=0.51 +15-9 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0.0 | 0+ | 117 ms 6 % β- = 100 % β-n = 29 6 | Measured mean square radius (r20)=1.62 fm2 17 (2006Kh08). E(level): Measured mean square radius (r20)=1.62 fm2 17 (2006Kh08). |
| 1365.0 | 0+ | 2.619 µs 26 % IT = 100 | XREF: C(1385). |
| 2150 | (2+) | Jπ(level): From shell-model prediction (2011Sa25). | |
| 2281.1 | (2+) | < 2.1 ps | B(E2)=0.0010 6 (2021Lo08) B(E2) from Coulomb excitation. E(level): B(E2) from Coulomb excitation. Jπ(level): From shell-model prediction (2011Sa25). |
| 2467 | (4+) | 63 ps 14 | XREF: C(2479). Jπ(level): From shell-model prediction (2011Sa25). |
| 2632 | (2+) | Jπ(level): From shell-model prediction (2011Sa25). | |
| 3261 | (2+) | Jπ(level): From shell-model prediction (2011Sa25). |
| E(level) | E(gamma) | Comments |
| 1329.0 | 1329.0 | E(γ): others: 1320 8 from (45Cl,44Sγ), 1319 7 from (46Ar,44Sγ), and 1324 6 from Coulomb excitation |
| 1365.0 | 36 | E(γ): from level-energy difference; not observed |
| 2150 | 2150 | E(γ): from (46Ar,44Sγ). Other: 2150 13 from (45Cl,44Sγ) |
| 2281.1 | 952 | E(γ): weighted average of 954 4 from 1H(44S,p’γ), 952 7 from (45Cl,44Sγ), 949 5 from (46Ar,44Sγ), and 941 19 from Coulomb excitation | 2281 | I(γ): deduced by evaluators from measured B(E2)|^=0.0010 6 and T1/2<2.1 ps |
| 2467 | 1138 | E(γ): weighted average of 1144 9 from (45Cl,44Sγ), 1128 6 from (46Ar,44Sγ), 1150 11 from 1H(44S,p’γ) and 1144 9 from (45Cl,44Sγ) |
| 3261 | 1897 | E(γ): weighted average of 1899 6 from 1H(44S,p’γ) and 1891 10 from (46Ar,44Sγ) I(γ): from 1H(44S,p’γ) | 1931 | E(γ): weighted average of 1955 25 from 1H(44S,p’γ) and 1929 7 from (46Ar,44Sγ) I(γ): from 1H(44S,p’γ) |
| 4027 | 2698 | E(γ): from 1H(44S,p’γ) |
| 4509 | 1198 | E(γ): from (45Cl,44Sγ) |
Other measurements:
1989Le16: 44S identified in 181Ta(48Ca,X) reaction. Measured isotopic half-life
1993So06 (also 1995So03): 44S identified in 64Ni(48Ca,X) E=60 MeV/nucleon using LISE fragment spectrometer at GANIL facility, measured isotopic half-life and decay modes.
2006Kh08: measured energy-integrated reaction cross section.
Mass measurements: 2012Ga45, 2009Ri12, 2007Ju03, 2000Sa21 (also 2001Sa72)
2010Mo12: analyzed effects of the tensor force on the neutron and proton gaps.
Mean-square radius from energy-integrated cross sections: 2006Kh08
Theoretical structure calculations:
2022Su12: calculated levels, Jπ, potential energy surfaces, B(E2) using antisymmetrized molecular dynamics
2016Eg01, 2011Ro48: calculated levels, Jπ, B(E2), quadrupole moments using symmetry conserving configuration mixing (SCCM) method
2015Ut01, 2012Ut02: calculated levels, Jπ, B(E2), S(2n), potential-energy surfaces deformation parameters using shell model
2014Ch21: calculated levels, Jπ, B(E2), B(M1), quadrupole moment, β and γ deformation parameters using shell model
1994We16: calculated S(2n), quadrupole mass deformations, neutron distribution rms radii using self-consistent mean field theory.
Other theoretical calculations: 57 other references for structure and two 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 uncertainty=300 for S(p) (2021Wa16)
Q-value: S(2n)=7709 6, S(2p)=40620 300 (syst), Q(β-n)=6880 60 (2021Wa16).