ADOPTED LEVELS, GAMMAS for 34Ar
Authors: Ninel Nica, Balraj Singh | Citation: Nucl. Data Sheets 113, 1563 (2012) | Cutoff date: 28-May-2012
Full ENSDF file | Adopted Levels (PDF version)
Q(β-)=-1.72×104 keV SY | S(n)= 17065.3 keV 4 | S(p)= 4663.9 keV 4 | Q(α)= -6744.2 keV 4 | ||
Reference: 2012WA38 |
References: | |||
A | 35Ca εp decay (25.7 MS) | B | 1H(34Ar,p’) |
C | 3He(32S,nγ),32S(3He,nγ) | D | 32S(3He,n) |
E | 36Ar(p,t) |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
0 | ABCDE | 0+ | 843.8 ms 4 % ε = 100 | |||||
2091.1 3 | ABCDE | 2+ | 319 fs 42 | 2091.1 3 | 100 | E2 | 0 | 0+ |
3287.7 5 | A CDE | 2+ | 194 fs 35 | 1196.6 4 3286 4 | 100 5 9 6 | M1+E2 [E2] | 2091.1 0 | 2+ 0+ |
3873 3 | A CDE | 0+ | > 187 fs | 585? 1782 3 | <43 100 | [E2] | 3287.7 2091.1 | 2+ 2+ |
4050 14 | DE | |||||||
4127.8 10 | CD | < 208 fs | 840.1 9 2037 4128? | 100 6 11 6 <11 | 3287.7 2091.1 0 | 2+ 2+ 0+ | ||
4513.2 8 | BCDE | 3- | 201 fs 38 | 1225.5 6 2422 | 100 11 11 3 | [E1] [E1] | 3287.7 2091.1 | 2+ 2+ |
4631 4 | C E | 2540 | 100 | 2091.1 | 2+ | |||
4865 4 | C E | 2774 | 100 | 2091.1 | 2+ | |||
4967 4 | CDE | 0+ | 841? 2876 | <20 100 | 4127.8 2091.1 | 2+ | ||
5255 4 ? | C | 3164? | 100 | 2091.1 | 2+ | |||
5307 13 | DE | (5-) | ||||||
5542 4 | C | 911 1029 | 54 16 100 16 | 4631 4513.2 | 3- | |||
5620 30 | D | 2+ | ||||||
5909 12 | DE | 0+ | ||||||
6074 11 | E | 2+ | ||||||
6525 9 | DE | 2+ | ||||||
6794 11 | DE | |||||||
6990 50 | D | |||||||
7322 6 | DE | 2+ | ||||||
7499 4 | E | (2+) | ||||||
7925 5 | E |
T1/2(level): From DSAM in 3He(32S,nγ),32S(3He,nγ). Most values are from 1985Al18
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Mixing Ratio | Additional Data |
2091.1 | 2+ | 319 fs 42 | 2091.1 3 | E2 | B(E2)(W.u.)=6.8 9 | |
3287.7 | 2+ | 194 fs 35 | 1196.6 4 | M1+E2 | +0.12 5 | B(E2)(W.u.)=2.4 20, B(M1)(W.u.)=0.060 12 |
2+ | 194 fs 35 | 3286 4 | [E2] | B(E2)(W.u.)=0.10 7 | ||
3873 | 0+ | > 187 fs | 1782 3 | [E2] | B(E2)(W.u.)<21 | |
4513.2 | 3- | 201 fs 38 | 1225.5 6 | [E1] | B(E1)(W.u.)=0.0016 4 | |
3- | 201 fs 38 | 2422 | [E1] | B(E1)(W.u.)=2.2E-5 8 |
Additional Level Data and Comments:
E(level) | Jπ(level) | T1/2(level) | Comments |
0 | 0+ | 843.8 ms 4 % ε = 100 | δ<r2>(38Ar,34Ar)=-0.251 fm2 6 62, first is statistical and the second is systematic uncertainty (1996Kl04, 2000Ge20). |
2091.1 | 2+ | 319 fs 42 | β2(p,p’)=0.27 2 (2001Kh17). |
4513.2 | 3- | 201 fs 38 | β3(p,p’)=0.39 3 (2001Kh17). |
E(level) | E(gamma) | Comments |
5542 | 911 | I(γ): Tentative value of branching ratio | 1029 | I(γ): Tentative value of branching ratio |
Identification and production of 34Ar isotope: 1966Mi11 and 1967Ba36 in 32S + 3He reaction; measured half-life
34S(π+,π-): 1993Bi10, 1991Bi07 (E=50 MeV), 1987Zu03 (E=292 MeV), measured σ
Mass measurement: 2002He23 (also 2001He29,2001He37)
Nuclear radius measurement: 2002Oz03
Structure calculations: 2006Or01 (levels, B(E2), shell model); 2005Ob01 (deformation, levels)
2007DoZV: found 1197γ and 2090γ (with two-step fragmentation reaction at relativistic energies) 9Be(37Ca,Xγ) E=197.5 α MeV reaction)
2011Le01, 2010Le03: experimental (by two methods) and theoretical neutron spectroscopic factors and reduction factors for 34Ar g.s. extracted from reaction p(34Ar,d), E(34Ar)=33 MeV/nucleon
Q-value: Note: Current evaluation has used the following Q record -17157 syst 17064.4 5 4663.1 6 -6740 3 2011AuZZ
Q-value: ΔQ(β-)=298 (2011AuZZ)
Q-value: Q(εp)=919.5 3, S(2n)=32319.7 18, S(2p)=6939.8 3 (2011AuZZ)
Q-value: Values in 2003Au03: Q(β-)=16900 300 (syst), S(n)=17064.4 5, S(p)=4662.8 6, Q(α)=-6740 3, Q(εp)=919.8 4, S(2n)=32319.6 18, S(2p)=6939.5 4