List of levels for 168OS

ADOPTED LEVELS, GAMMAS for ¹⁶⁸Os

Author: Coral M. Baglin | Citation: Nucl. Data Sheets 111, 1807 (2010) | Cutoff date: 15-Jun-2010

Full ENSDF file | Adopted Levels (PDF version)

Q(β-)=-1.127×10⁴ keV 8	S(n)= 1.156×10⁴ keV 8	S(p)= 2.43×10³ keV SY	Q(α)= 5816 keV 3
Reference: 2012WA38

References:
A	¹⁷²Pt α decay	B	¹¹²Sn(⁵⁸Ni,2pγ),

Identification: 1982En03 observed ¹⁶⁸Os as the α daughter of ¹⁷²Pt; this assignment was confirmed through cross-bombardments, excitation functions and α-energy systematics (1978Ca11,1978Sc26,1982De11,1984Sc06).

See 1983Al09, 1984Al36, and 1984HaZD for analyses of mass and proton-stability data for ¹⁶⁸Os.

Q-value: Note: Current evaluation has used the following Q record -11250 SY11560 70 2440 syst 5818 3 2003Au03,2009AuZZ

Q-value: ΔQ(β)=150, ΔS(p)=50 (2003Au03, 2009AuZZ).

E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	I(γ)	M(γ)	Final Levels
0.0	A B	0+	2.1 s 1 % ε = 57 4 % α = 43 4
341.20 20	B	2+		341.2 2	100		0.0	0+
857.3 3	B	4+		516.1 2	100		341.20	2+
1469.6 4	B	(3-)		611.8 5 1128.6 10	100 22 33 4		857.3 341.20	4+ 2+
1499.1 4	B	6+		641.8 2	100 3	(E2)	857.3	4+
1736.8 4	B	(5-)		237.7 10 267.1 2 879.5 2	11.4 18 39 9 100 11	D	1499.1 1469.6 857.3	6+ (3-) 4+
2154.1 4	B	(7-)		417.3 2 655.2 10	100 8 8 3	(E2)	1736.8 1499.1	(5-) 6+
2222.7 4	B	8+		723.6 2	100		1499.1	6+
2298.6 9	B	(8-)		144.6 10	100		2154.1	(7-)
2589.4 5	B	(9-)		435.3 2	100	(E2)	2154.1	(7-)
2730.5 6	B	(10-)		140.9 5 432.1 10	100 12 29 13		2589.4 2298.6	(9-) (8-)
2937.8 5	B	(11-)		207.2 10 348.4 2	22 9 100 11		2730.5 2589.4	(10-) (9-)
2982.7 5	B	10+		760.1 2	100		2222.7	8+
3128.8 6	B	(12-)		398.3 2	100		2730.5	(10-)
3363.7 5	B	(13-)		425.9 2	100		2937.8	(11-)
3365.1 5	B	(12+)		235.9 10 382.4 2 427.1 10	9 3 100 12 32 12		3128.8 2982.7 2937.8	(12-) 10+ (11-)
3693.9 6	B	(14-)		565.1 2	100		3128.8	(12-)
3730.5 5	B	(14+)		365.4 2	100		3365.1	(12+)
3942.6 6	B	(15-)		578.9 2	100		3363.7	(13-)
4261.4 6	B	(16+)		530.9 2	100		3730.5	(14+)
E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	I(γ)	M(γ)	Final Levels
4382.1 8	B	(16-)		688.2 5	100		3693.9	(14-)
4633.5 8	B	(17-)		690.9 5	100		3942.6	(15-)
4886.7 6	B	(18+)		625.3 2	100		4261.4	(16+)
5158.4 13	B	(18-)		776.3 10	100		4382.1	(16-)

E(level): From least-squares fit to Eγ.

J^π(level): From ¹¹²Sn(⁵⁸Ni,2pγ), based on observed band structure and configuration assignments deduced from comparison of experimental Routhians and alignments with cranked shell-model calculations, except as noted.

M(γ): From γ asymmetry ratio in ¹¹²Sn(⁵⁸Ni,2pγ), assigning Δπ=(no) to intraband transitions.

E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 1 - GS band.
0.0	0+	2.1 s 1 % ε = 57 4 % α = 43 4
341.20 20	2+		341.2 2	100		0.0	0+
857.3 3	4+		516.1 2	100		341.20	2+
1499.1 4	6+		641.8 2	100 3	(E2)	857.3	4+
2222.7 4	8+		723.6 2	100		1499.1	6+
2982.7 5	10+		760.1 2	100		2222.7	8+
3365.1 5	(12+)		235.9 10 382.4 2 427.1 10	9 3 100 12 32 12		3128.8 2982.7 2937.8	(12-) 10+ (11-)
3730.5 5	(14+)		365.4 2	100		3365.1	(12+)
4261.4 6	(16+)		530.9 2	100		3730.5	(14+)
4886.7 6	(18+)		625.3 2	100		4261.4	(16+)
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 2 - AE, α=1 band.
1469.6 4	(3-)
1736.8 4	(5-)		237.7 10 267.1 2 879.5 2	11.4 18 39 9 100 11	D	1499.1 1469.6 857.3	6+ (3-) 4+
2154.1 4	(7-)		417.3 2 655.2 10	100 8 8 3	(E2)	1736.8 1499.1	(5-) 6+
2589.4 5	(9-)		435.3 2	100	(E2)	2154.1	(7-)
2937.8 5	(11-)		207.2 10 348.4 2	22 9 100 11		2730.5 2589.4	(10-) (9-)
3363.7 5	(13-)		425.9 2	100		2937.8	(11-)
3942.6 6	(15-)		578.9 2	100		3363.7	(13-)
4633.5 8	(17-)		690.9 5	100		3942.6	(15-)
E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 3 - AF, α=0 band.
2298.6 9	(8-)
2730.5 6	(10-)		140.9 5 432.1 10	100 12 29 13		2589.4 2298.6	(9-) (8-)
3128.8 6	(12-)		398.3 2	100		2730.5	(10-)
3693.9 6	(14-)		565.1 2	100		3128.8	(12-)
4382.1 8	(16-)		688.2 5	100		3693.9	(14-)
5158.4 13	(18-)		776.3 10	100		4382.1	(16-)

E(level) (keV)	J^π(level)	T_1/2(level)	E(γ) (keV)	Multipolarity	Conversion Coefficient	Additional Data
1499.1	6+		641.8 2	(E2)	0.01265	α=0.01265
2154.1	(7-)		417.3 2	(E2)	0.0361	α=0.0361
2589.4	(9-)		435.3 2	(E2)	0.0324	α=0.0324

E(level)	J^π(level)	T_1/2(level)	Comments
0.0	0+	2.1 s 1 % ε = 57 4 % α = 43 4	%α: weighted average of 49 3 from matching of ¹⁷²Pt-¹⁶⁸Os velocity distributions following recoil-mass selection of the evaporation residues formed by neutron emission from ¹⁷⁶Pt (4n) (1982En03), 40 3 from (1996Pa01) and 36 4 (2004GoZZ). E(level): %α: weighted average of 49 3 from matching of ¹⁷²Pt-¹⁶⁸Os velocity distributions following recoil-mass selection of the evaporation residues formed by neutron emission from ¹⁷⁶Pt (4n) (1982En03), 40 3 from (1996Pa01) and 36 4 (2004GoZZ). GS band.
341.20	2+		E(level): GS band.
857.3	4+		E(level): GS band.
1469.6	(3-)		E(level): AE, α=1 band.
1499.1	6+		E(level): GS band.
1736.8	(5-)		E(level): AE, α=1 band.
2154.1	(7-)		E(level): AE, α=1 band.
2222.7	8+		E(level): GS band.
2298.6	(8-)		E(level): AF, α=0 band.
2589.4	(9-)		E(level): AE, α=1 band.
2730.5	(10-)		E(level): AF, α=0 band.
2937.8	(11-)		E(level): AE, α=1 band.
2982.7	10+		E(level): GS band.
3128.8	(12-)		E(level): AF, α=0 band.
3363.7	(13-)		E(level): AE, α=1 band.
3365.1	(12+)		E(level): GS band.
3693.9	(14-)		E(level): AF, α=0 band.
3730.5	(14+)		E(level): GS band.
3942.6	(15-)		E(level): AE, α=1 band.
4261.4	(16+)		E(level): GS band.
4382.1	(16-)		E(level): AF, α=0 band.
4633.5	(17-)		E(level): AE, α=1 band.
4886.7	(18+)		E(level): GS band.
5158.4	(18-)		E(level): AF, α=0 band.