Author: Balraj Singh |  Citation: ENSDF |  Cutoff date: 31-Jan-2016 

Author: M. Shamsuzzoha Basunia |  Citation: Nucl. Data Sheets 113, 909 (2012) |  Cutoff date: 1-Jan-2012 

 Full ENSDF file | Adopted Levels (PDF version) 

S(n)= 21820 keV SYS(p)= -1.8×103 keV 1Q(α)= -8400 keV SY
Reference: 2012WA38,2015MU13

  A  30Ar p decay:(2+) STATE 

General Comments:

Non-observation of 29Cl events in 1996PoZZ, assigned an upper limit of half-life based on expected cross section

Evidence of proton-unbound ground state and first excited state in 29Cl provided by 2015Mu13 from the proton decay of (2+) excited state of 30Ar. The ground state of 30Ar decays by two-proton emission to 28S

Q-value: Estimated uncertainties (2012Wa38): 720 for S(n), 570 for Q(α)

Q-value: S(p) from 2015Mu13. S(n) and Q(α) from 2012Wa38. S(p)=-2410 430 (syst,2012Wa38)

Q-value: S(2n)=40610 (theory,1997Mo25), S(2p)=90 400 (2012Wa38)

XREFJπ(level) T1/2(level)
  0.0A (1/2+) < 20 ns
% p ≈ 100
  0.5E3A (3/2+) % p ≈ 100

E(level): From measured positions and angular correlations of 30Ar in-flight decay products such as coincident two protons (emitted by the decay of 30Ar) and heavy-ion recoil such as 28S (2p-decay daughter of 30Ar) (2015Mu13)

Jπ(level): From analogy with mirror nuclide 29Mg, where the 3/2+ ground state and the first excited state, presumably 1/2+, are separated by only 55 keV (see 29Mg Adopted Levels) (2015Mu13)

Back to top

Back to top

Additional Level Data and Comments:

  0.0(1/2+) < 20 ns
% p ≈ 100
Decays to ground state of 28S (2015Mu13).
  0.5E3(3/2+) % p ≈ 100
Decays to ground state and first 2+ state of 28S (2015Mu13).

Back to top