ADOPTED LEVELS, GAMMAS for 44Cl

Authors: Jun Chen, Balraj Singh and John A. Cameron |  Citation: Nucl. Data Sheets 112, 2357 (2011) |  Cutoff date: 31-Jul-2011 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=1.206×104 keV 19S(n)= 4.36×103 keV 22S(p)= 1.570×104 keV 19Q(α)= -1.496×104 keV 22
Reference: 2012WA38

References:
  A  44S β- decay (100 MS)  B  9Be(45Cl,44ClG)

General Comments:

44Cl identified in 64Ni(48Ca,X) E=60 MeV/nucleon (1995So03). Particle stability established in 9Be(48Ca,X) reaction (1979We10)

Mass measurement in Th(p,x) E=800 MeV (1991Zh24,1990Tu01)

1999WiZX: 44Cl produced by fragmentation of 48Ca beam at 70 MeV/nucleon with a Be target. Measured Eγ, Iγ, γγ coin and βγγ coin using Ge and Si detectors.

1999Ai02: 44Cl beam from 55Mn fragmentation, Si(44Cl,X) studied. Measured cross section and strong absorption radius. A1200 separator at NSCL facility

2006Kh08: 44Cl beam from 48Ca fragmentation at 60.3 MeV/nucleon with 181Ta target using LISE3 at GANIL facility, Si(44Cl,X) studied. Measured cross section and strong absorption radius

2010De11: measurement of g factor of 44Cl g.s. by β-NMR method. 44Cl produced in fragmentation of 48Ca beam at 60 MeV/nucleon bombarding 9Be target. Secondary beam selected by LISE separator at GANIL facility. Large scale shell-model calculations

Mass measurement (time-of-flight method): 2000Sa21 (also 2001Sa72)

No information is available for population of levels in 44Cl from β- decay of 44S.

The delayed-neutron decay of 45S is reported as 54% (1995So03) which is expected to populate 44Cl, but no level or feeding data are available.

Theory: 2010Af01, 2010Ga15

Gammas: Two strong γ rays at 515 and 720 keV are reported by 2009Ri04 in the 9Be(45Cl,44Clγ) reaction, but not placed in the level scheme

Q-value: Note: Current evaluation has used the following Q record

Q-value: Q(β-n)=3330 140, S(2n)=11830 200, S(2p)=36190 250 (2011AuZZ)

Q-value: Values in 2003Au03: Q(β-)=12440 110, S(n)=4130 190, S(p)=15550 230, Q(α)=-14550 180, Q(β-n)=3710 110, S(2n)=11460 180, S(2p)=35750 460








E(level)
(keV)
XREFJπ(level) T1/2(level)E(γ)
(keV)
M(γ)
    0AB (2-) 0.56 s 11 
% β- = 100
% β-n < 8
  
  475 B (4-) 1.0 ns +35-7    475
[E2]

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Additional Gamma Data:











E(level)
(keV)
Jπ(level)T1/2(level)E(γ)
(keV)
MultipolarityAdditional Data
  475 (4-) 1.0 ns +35-7    475[E2]B(E2)=0.0022 +45-17 (<a href= "http://www.nndc.bnl.gov/nsr/nsrlink.jsp?2009Ri04 ">2009Ri04</a>), B(E2)(W.u.)=2.5 +18-25

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
    0(2-) 0.56 s 11 
% β- = 100
% β-n < 8
μ=(-)0.5498 (2010De11)
Cross sections in Si(44Cl,X): 2.92 b 21 at 51.62 MeV/nucleon, 2.63 b 7 at 44.98 MeV/nucleon. Strong absorption radius r02=1.21 fm2 3 at 44.98 MeV/nucleon (2006Kh08). Other: 1.33 fm2 13 at 65.47 MeV/nucleon (1999Ai02).

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