List of levels for 213PO

Author: M. S. Basunia | Citation: Nucl. Data Sheets 181, 475 (2022) | Cutoff date: 1-Jan-2022

2020De36: ²³⁸U(⁴⁸Ca,X), E=233.3 MeV; measured multi-nucleon transfer reaction cross section σ_cumulative=2350 nb/sr 9 for ²¹³Po.

2015Ba20: ¹³⁶Xe + ²⁰⁸Pb, E(c.m.)=450 MeV, measured multi-nucleon transfer reaction cross section σ_{cumulative yield}=0.193 mb 39 and σ_{independent yield}=0.190 mb 38 for ²¹³Po.

E(level): Deduced by evaluator from a least square fit to the γ-ray energies.

J^π(level): From 1998Ar03 (²¹³Bi β^- decay), except where otherwise noted. In 1998Ar03, semiempirical shell-model calculation results were compared as a guide for parity and spin assignments. Additional arguments are given as comments.

E(level) (keV)	J^π(level)	T_1/2(level)	E(γ) (keV)	Multipolarity	Mixing Ratio	Conversion Coefficient	Additional Data
292.805	(11/2+)	78 ps 14	292.80 1	M1+E2	1.0 +5-4	0.34	B(E2)(W.u.)=17 8, B(M1)(W.u.)=0.0042 +24-17, α=0.34 10, α(K)=0.26 9, α(L)=0.063 7, α(M)=0.0153 13, α(N)=0.00394 34, α(O)=0.00080 8, α(P)=9.4E-5 15
440.446	(7/2+)	93 ps 3	147.66 5	(E2)		1.454	B(E2)(W.u.)=0.563 45, α=1.454 20, α(K)=0.307 4, α(L)=0.851 12, α(M)=0.2263 32, α(N)=0.0580 8, α(O)=0.01109 16, α(P)=0.001015 14
440.446	(7/2+)	93 ps 3	440.45 1	M1+E2	0.39 +15-19	0.161	B(E2)(W.u.)=0.55 +40-35, B(M1)(W.u.)=0.00207 +21-24, α=0.161 13, α(K)=0.130 11, α(L)=0.0234 14, α(M)=0.00553 30, α(N)=0.00142 8, α(O)=0.000297 17, α(P)=3.80E-5 25
645.6	13/2+		645.6 5	E2		0.01796	α=0.01796 25, α(K)=0.01327 19, α(L)=0.00354 5, α(M)=0.000872 12, α(N)=0.0002241 32, α(O)=4.53×10^-5 6, α(P)=5.20E-6 7
1068.4	17/2+		422.8 1	E2		0.0486	α=0.0486 7, α(K)=0.0315 4, α(L)=0.01286 18, α(M)=0.00327 5, α(N)=0.000840 12, α(O)=0.0001663 23, α(P)=1.768×10^-5 25
1357.4	21/2+		289.0 1	(E2)		0.1410	α=0.1410 20, α(K)=0.0729 10, α(L)=0.0508 7, α(M)=0.01322 19, α(N)=0.00339 5, α(O)=0.000661 9, α(P)=6.56×10^-5 9
1503.6	(25/2+)		146.2 5	(E2)		1.512	α=1.512 29, α(K)=0.313 5, α(L)=0.889 19, α(M)=0.237 5, α(N)=0.0607 13, α(O)=0.01159 24, α(P)=0.001061 22

Q(β-)=-74 keV 6	S(n)= 4355 keV 3	S(p)= 5825 keV 3	Q(α)= 8536 keV 3
Reference: 2021WA16

References:
A	²¹³Bi β^- decay (45.59 M)	B	²¹⁷Rn α decay
C	²⁰⁸Pb(¹⁸O,xγ)

E(level) (keV)	XREF	J^π(level)	T_1/2(level)	E(γ) (keV)	I(γ)	M(γ)	Final Levels
0.0	A B C	9/2+	3.706 µs 1 % α = 100
292.805 8	A	(11/2+)	78 ps 14	292.80 1	100	M1+E2	0.0	9/2+
440.446 9	A	(7/2+)	93 ps 3	147.66 5 440.45 1	0.057 4 100 1	(E2) M1+E2	292.805 0.0	(11/2+) 9/2+
600.87 17 ?	A	(5/2+)		600.9 2	100		0.0	9/2+
645.6 5	C	13/2+		645.6 5	100	E2	0.0	9/2+
867.98 3	A	(13/2+)		574.9 3 867.98 3	22 9 100 5		292.805 0.0	(11/2+) 9/2+
1003.605 22	A	(9/2+)		402.8 3 710.82 3 1003.58 3	0.20 3 22.2 10 100 6		600.87 292.805 0.0	(5/2+) (11/2+) 9/2+
1045.65 9	A	(9/2+,11/2+)		604.94 21 1045.70 9	13 3 100 17		440.446 0.0	(7/2+) 9/2+
1068.4 5	C	17/2+		422.8 1	100	E2	645.6	13/2+
1100.173 8	A	(7/2,9/2,11/2)		659.75 2 807.36 1 1100.17 1	12.9 7 100.0 25 91 6		440.446 292.805 0.0	(7/2+) (11/2+) 9/2+
1119.38 4	A	(7/2,9/2,11/2)		826.55 5 1119.40 6	13.7 19 100 4		292.805 0.0	(11/2+) 9/2+
1328.2 3	A	(7/2,9/2,11/2)		886.66 14 ? 1328.2 3	100 20 40 10		440.446 0.0	(7/2+) 9/2+
1357.4 6	C	21/2+		289.0 1	100	(E2)	1068.4	17/2+
1412.9 8	C			344.5 5	100		1068.4	17/2+
1503.6 8	C	(25/2+)		146.2 5	100	(E2)	1357.4	21/2+
1619.1 8	C	(23/2+)		261.7 5	100		1357.4	21/2+
1779.6 6	C			711.2 3	100		1068.4	17/2+
2017.2 9	C			398.1 5	100		1619.1	(23/2+)

E(level)	E(gamma)	Comments
440.446	147.66	M(γ): B(E2)=0.0031 6 (1997Wa27) is close to the B(E2, 2⁺ to 0⁺) values of the neighboring nuclei.
645.6	645.6	E(γ): From (¹⁸O,Xγ). M(γ): From (¹⁸O,Xγ) based on the the angular anisotropy ratio R_ADO measurements. Evaluator assign as E2 based on the assigned configuration, systematics, and measurement timescale (γγ coin).
1068.4	422.8	E(γ): From (¹⁸O,Xγ). M(γ): From (¹⁸O,Xγ) based on the the angular anisotropy ratio R_ADO measurements. Evaluator assign as E2 based on the assigned configuration, systematics, and measurement timescale (γγ coin).
1357.4	289.0	E(γ): From (¹⁸O,Xγ). M(γ): From (¹⁸O,Xγ) based on the the angular anisotropy ratio R_ADO measurements. Evaluator assign as E2 based on the assigned configuration, systematics, and measurement timescale (γγ coin).
1412.9	344.5	E(γ): From (¹⁸O,Xγ).
1503.6	146.2	E(γ): From (¹⁸O,Xγ). M(γ): From α(exp) (¹⁸O,xγ)
1619.1	261.7	E(γ): From (¹⁸O,Xγ).
1779.6	711.2	E(γ): From (¹⁸O,Xγ).
2017.2	398.1	E(γ): From (¹⁸O,Xγ).

E(level)	J^π(level)	T_1/2(level)	Comments
0.0	9/2+	3.706 µs 1 % α = 100	Eα (group 1)=8376 3 (1982Bo04), 8377 5 (1964Va20), 8368 10 (1960Vo05); Eα (group 2)=7614 10 (1964Va20). E(level): Eα (group 1)=8376 3 (1982Bo04), 8377 5 (1964Va20), 8368 10 (1960Vo05); Eα (group 2)=7614 10 (1964Va20). Yrast sequence. Possible configuration: 9/2⁺: ν (g_9/2⁺¹), 13/2⁺: ν (g_9/2⁺¹)#2⁺, 17/2⁺: ν (g_9/2⁺¹)#4⁺, and 21/2⁺: ν (g_9/2⁺¹)#6⁺.
440.446	(7/2+)	93 ps 3	%α<0.001 from 1997Wa27 (see ²¹³Bi β- decay). E(level): %α<0.001 from 1997Wa27 (see ²¹³Bi β- decay).
645.6	13/2+		E(level): Yrast sequence. Possible configuration: 9/2⁺: ν (g_9/2⁺¹), 13/2⁺: ν (g_9/2⁺¹)#2⁺, 17/2⁺: ν (g_9/2⁺¹)#4⁺, and 21/2⁺: ν (g_9/2⁺¹)#6⁺. J^π(level): From (¹⁸O,Xγ) based on γ-ray multipole assignments.
1068.4	17/2+		E(level): Yrast sequence. Possible configuration: 9/2⁺: ν (g_9/2⁺¹), 13/2⁺: ν (g_9/2⁺¹)#2⁺, 17/2⁺: ν (g_9/2⁺¹)#4⁺, and 21/2⁺: ν (g_9/2⁺¹)#6⁺. J^π(level): From (¹⁸O,Xγ) based on γ-ray multipole assignments.
1357.4	21/2+		E(level): Yrast sequence. Possible configuration: 9/2⁺: ν (g_9/2⁺¹), 13/2⁺: ν (g_9/2⁺¹)#2⁺, 17/2⁺: ν (g_9/2⁺¹)#4⁺, and 21/2⁺: ν (g_9/2⁺¹)#6⁺. J^π(level): From (¹⁸O,Xγ) based on γ-ray multipole assignments.
1503.6	(25/2+)		Possible configuration: π h_9/2⁺²~#ν i_11/2⁺¹. J^π(level): From (¹⁸O,Xγ) based on γ-ray multipole assignments.