List of levels for 40CL

Author: Jun Chen | Citation: Nucl. Data Sheets 140, 1 (2017) | Cutoff date: 30-Sep-2015

First identification of ⁴⁰Cl nuclide by 1956Mo39 via ⁴⁰Ar(n,p)

⁴⁰Cl produced in ⁴⁰Ar(n,p): 1956Mo39, 1965Gr03, 1970Ke12. Others: Thesis (Masters) by E.L. Robinson (Purdue University,1958), 1968Hu07, 1968Hu15, 1970Lu10, 1972Kl06, 1973Kl02

α 0.10 s 3 activity in ⁴⁰Cl reported by 1968Fl10 (also 1968Fl11) is not convincing and has not been confirmed in any other study

Mass measurements: 1989Mi03, 1984Fi02

Other reactions:

2012Bh09: ⁴⁰Ar(n,p) E=9-15 MeV. Measured Eγ, Iγ, σ(E), activation method.

2012Zh06: ⁹Be(⁴⁰Ar,X) and ¹⁸¹Ta(⁴⁰Ar,X) E=57 MeV/nucleon. Measured fragment yields.

2008Kl02: ⁴⁰Ar(μ^-,ν). Measured isotopic yields.

2007Na31: ¹³⁶Xe(p,X) E=1 GeV. Measured isotopic σ.

2006Ro34: ²H(⁴⁸Ca,X) E=102 MeV/nucleon. Measured production σ.

1999Ai02: Si(⁴⁰Cl,X) E=38-80 MeV. Measured mean-energy integrated cross section, deduced strong absorption radii, r²₀=1.28 fm² 7, 1.21 fm² 8

1997Fo01: ²⁰⁸Pb(³⁷Cl,X) E=230 MeV: measured yield

1988Ma53: ⁴⁰Ar(n,p): analyzed one-nucleon transfer σ data, deduced g.s. occupation numbers for ⁴⁰Ar

1971Ar32: ²³²Th(⁴⁰Ar,X): yield for ⁴⁰Cl production

Q-value: S(2n)=13900 30, S(2p)=27470 90 (2012Wa38)

E(level): From a least-squares fit to γ-ray energies

J^π(level): When no Jπ arguments are given, the assignments are based on γ(θ) data in (³⁶S,αpγ) and comparison of experimental level structure with shell-model calculations (particularly of 1989Wa09 and 1989Ji01).

T_1/2(level): From (³⁶S,αpγ) for excited states

I(γ): From (³⁶S,αpγ), unless otherwise noted.

M(γ): From (³⁶S,αpγ) based on measured γ(θ) consistent with ΔJ=1, dipole (1993Ba62)

Q(β-)=7480 keV 30	S(n)= 5830 keV 30	S(p)= 11680 keV 60	Q(α)= -9730 keV 30
Reference: 2012WA38

References:
A	⁴⁰S β^- decay (8.8 S)	B	⁹Be(³⁶S,αpγ)
C	⁴⁰Ar(⁷Li,⁷Be),(¹¹B,¹¹C)	D	²⁰⁸Pb(⁴⁰Ar,xγ)

E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	I(γ)	M(γ)	Final Levels
0	A B C D	2-	1.35 m 3 % β^- = 100
211.62 13	A B C D	(1-)		211.59 11	100	(D)	0	2-
244.03 8	B C D	(3-)	< 10 ns	244.02 8	100	(D)	0	2-
367.1 4	B D	(2)		155.5 3	100		211.62	(1-)
431.8 3	A B D	(1:3+)		431.58 7	100	(D)	0	2-
601.28 14	B C D	(4-)	< 7 ns	357.37 14 601.1 1	100 5 9.1 12	(D)	244.03 0	(3-) 2-
680.95 17	B C D	(4-)		436.90 10	100	(D)	244.03	(3-)
839.16 15	B C D	(5-)		157.8 3 237.92 9 594.9 4	9.7 7 100 3 7.4 16	(D) (D)	680.95 601.28 244.03	(4-) (4-) (3-)
889.5 4	A D	1+		457.4 6 677.41 12 889.06 17	15 4 100 14 40 6		431.8 211.62 0	(1:3+) (1-) 2-
1160 40	C D	(4-)		563.3 4	100		601.28	(4-)
1293.3 5	A	(0-,1,2)		403.70 12 1081.33 18 1292.87 21	33 4 100 13 43 6		889.5 211.62 0	1+ (1-) 2-
1580 40	C
1740 40	C
2014.7 4	B C D	(6-)	≤ 3.5 ps	1175.4 3	100		839.16	(5-)
2194.2 3	B	(5)		1513.6 4 1592.5 4	100 33 42 8	(D)	680.95 601.28	(4-) (4-)
2307.2 7	A C	1+		1013.57 13 1874.41 19	100 6 89 11		1293.3 431.8	(0-,1,2) (1:3+)
2413.7 4	B	(6)		219.52 13	100	(D)	2194.2	(5)
2620.4 5	B	(7-)	≤ 3.5 ps	605.4 6 1781.4 5	100 30 42 15		2014.7 839.16	(6-) (5-)
4087.1 8 ?	B	(8-)		1466.7 6 ?	100		2620.4	(7-)

E(level) (keV)	J^π(level)	T_1/2(level)	E(γ)	I(γ)	M(γ)	Final Levels
Band 1 - yrast NEGATIVE-PARITY STRUCTURE.
0	2-	1.35 m 3 % β^- = 100
244.03 8	(3-)	< 10 ns	244.02 8	100	(D)	0	2-
601.28 14	(4-)	< 7 ns	357.37 14 601.1 1	100 5 9.1 12	(D)	244.03 0	(3-) 2-
839.16 15	(5-)		157.8 3 237.92 9 594.9 4	9.7 7 100 3 7.4 16	(D) (D)	680.95 601.28 244.03	(4-) (4-) (3-)
2014.7 4	(6-)	≤ 3.5 ps	1175.4 3	100		839.16	(5-)
2620.4 5	(7-)	≤ 3.5 ps	605.4 6 1781.4 5	100 30 42 15		2014.7 839.16	(6-) (5-)
4087.1 8	(8-)		1466.7 6 ?	100		2620.4	(7-)

E(level)	J^π(level)	T_1/2(level)	Comments
0	2-	1.35 m 3 % β^- = 100	E(level): yrast NEGATIVE-PARITY STRUCTURE.
244.03	(3-)	< 10 ns	E(level): yrast NEGATIVE-PARITY STRUCTURE.
601.28	(4-)	< 7 ns	E(level): yrast NEGATIVE-PARITY STRUCTURE.
839.16	(5-)		E(level): yrast NEGATIVE-PARITY STRUCTURE.
2014.7	(6-)	≤ 3.5 ps	E(level): yrast NEGATIVE-PARITY STRUCTURE.
2307.2	1+		XREF: C(2290).
2620.4	(7-)	≤ 3.5 ps	E(level): yrast NEGATIVE-PARITY STRUCTURE.
4087.1	(8-)		E(level): yrast NEGATIVE-PARITY STRUCTURE.

E(level)	E(gamma)	Comments
211.62	211.59	E(γ): weighted average of 211.59 11 from ⁴⁰S β^- decay, 211.60 13 from (³⁶S,αpγ), and 211.6 4 from (⁴⁰Ar,Xγ)
244.03	244.02	E(γ): weighted average of 244.04 8 from ⁹Be(³⁶S,αpγ) and 244.0 1 from ²⁰⁸Pb(⁴⁰Ar,Xγ).
367.1	155.5	E(γ): weighted average of 155.5 3 from ⁹Be(³⁶S,αpγ) and 156 1 from ²⁰⁸Pb(⁴⁰Ar,Xγ).
431.8	431.58	E(γ): weighted average of 431.57 7 from ⁴⁰S β^- decay, 431.63 21 from ⁹Be(³⁶S,αpγ), and 431.8 4 from ²⁰⁸Pb(⁴⁰Ar,Xγ).
601.28	357.37	E(γ): weighted average of 357.36 14 from ⁹Be(³⁶S,αpγ) and 357.4 2 from ²⁰⁸Pb(⁴⁰Ar,Xγ).
601.28	601.1	E(γ): weighted average of 601.1 3 from ⁹Be(³⁶S,αpγ) and 601.1 1 from ²⁰⁸Pb(⁴⁰Ar,Xγ). I(γ): weighted average of 8.6 14 from ⁹Be(³⁶S,αpγ) and 10 2 from ²⁰⁸Pb(⁴⁰Ar,Xγ).
680.95	436.90	E(γ): weighted average of 436.86 17 from ⁹Be(³⁶S,αpγ) and 436.9 1 from ²⁰⁸Pb(⁴⁰Ar,Xγ).
839.16	157.8	E(γ): from ⁹Be(³⁶S,αpγ) only
	237.92	E(γ): weighted average of 237.93 9 from ⁹Be(³⁶S,αpγ) and 237.9 1 from ²⁰⁸Pb(⁴⁰Ar,Xγ).
	594.9	E(γ): from ⁹Be(³⁶S,αpγ) only
889.5	457.4	E(γ): From ⁴⁰S β^- decay I(γ): From ⁴⁰S β^- decay
	677.41	E(γ): From ⁴⁰S β^- decay I(γ): From ⁴⁰S β^- decay
	889.06	E(γ): weighted average of 889.04 17 from ⁴⁰S β^- decay and 889.2 5 from ²⁰⁸Pb(⁴⁰Ar,Xγ). I(γ): From ⁴⁰S β^- decay
1160	563.3	E(γ): from ²⁰⁸Pb(⁴⁰Ar,Xγ) only
1293.3	403.70	E(γ): From ⁴⁰S β^- decay I(γ): From ⁴⁰S β^- decay
	1081.33	E(γ): From ⁴⁰S β^- decay I(γ): From ⁴⁰S β^- decay
	1292.87	E(γ): From ⁴⁰S β^- decay I(γ): From ⁴⁰S β^- decay
2307.2	1013.57	E(γ): From ⁴⁰S β^- decay I(γ): From ⁴⁰S β^- decay
2307.2	1874.41	E(γ): From ⁴⁰S β^- decay I(γ): From ⁴⁰S β^- decay
2620.4	605.4	I(γ): Iγ(605.4γ)/Iγ(1781.4γ)=60 16/100 40 in (⁴⁰Ar,Xγ)