ADOPTED LEVELS for 30Ar
Author: Balraj Singh | Citation: ENSDF | Cutoff date: 15-JAN-2016
Full ENSDF file | Adopted Levels (PDF version)
| S(n)= 23530 keV CA | S(p)= -430 keV SY | Q(α)= -8010 keV SY | |||
| Reference: 2012WA38,1997MO25 |
| References: | |||
| A | 9Be(31Ar,30Ar) | ||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) |
| 0 | A | 0+ | < 10 ps % 2p = 100 |
| 0.7E3 | A | (2+) | % p = 100 |
Jπ(level): From analogy with mirror states in 30Mg
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0 | 0+ | < 10 ps % 2p = 100 | From analysis of proton distribution spectrum from 2p decays of 30Ar, 2015Mu13 conclude that the process is a combination of the two decay processes: "true " or simultaneous 2p emission, and sequential 1p emissions. |
| 0.7E3 | (2+) | % p = 100 | This state decays by two branches of sequential 1p emissions via the lowest states in 29Cl, finally to the ground state and first excited 2+ state in 28S (2015Mu13). |
30Ar identified as an unbound nucleus by 2015Mu13 in one-neutron knockout reaction.
Theoretical nuclear structure calculations: 2014Le03, 2005Pa26, 2004Ge02
Theory about 2p decay mode: 2004Pf02, 2003Gr04, 2003Gr24
Q-value: S(n) from theory (1997Mo25), S(p) and Q(α) from 2012Wa38. Estimated uncertainties (2012Wa38): 640 for S(p) and 780 for Q(α)
Q-value: S(2n)=42000 (theory,1997Mo25). S(2p)=-2250 +150-100 (2015Mu13). Other S(2p)=-2840 530 (2012Wa38)