1965MC09: ¹³O; measured T_1/2; deduced nuclear properties.

1970ES03, 1971ESZV: ¹³O; measured delayed-p spectrum, T_1/2; deduced log ft.

1971ESZR: ¹³O; measured T_1/2, pγ-coin, β-delayed proton spectra. ¹³N deduced levels, level-width.

1982MIZW, 1983ASZZ: ¹³O(β⁺); measured β-delayed E_p, I_p; deduced T_1/2.

1984MIZR: ¹³O(β⁺p); measured β-delayed E_p, I_p. ¹³N levels deduced relative I_p, branching ratio.

1990AS01: ¹³O(β⁺p); measured β-delayed I_p, E_p, I_p/I_β; deduced T_1/2. ¹³N levels deduced branching ratio.

1995TAZZ: ¹³O(β⁺); measured β-NMR; deduced quadrupole coupling constant. ¹³O level deduced μ, quadrupole moment. β-NMR technique

1996MA37: ¹³O(β⁺); measured β time spectra.

1996MA38: ¹³O(β⁺); measured β-NMR, polarized sources; deduced μ, spin expectation values.

1996MAZQ: ¹³O(β⁺); measured β-ray asymmetry. ¹³O deduced magnetic and quadrupole moments.

1996TAZY, 1997TAZW, 1999MA46, 1999SA75: ¹³O(β⁺); measured β-NQR spectrum; deduced quadrupole moment.

2005KN02: ¹³O(β⁺p); measured β-delayed E_p, I_p; deduced log ft. ¹³N deduced branching ratios for proton decay from excited states.

2014TE01: ¹³O(β⁺p); measured decay products, E_β, I_β, E_p, I_p; deduced breakup of excited states in ¹²C.

2020BA07: compiled β⁺-delayed proton (or α) emission for very neutron-deficient nuclei, J, π, T_1/2, branching ratios.

Measured half-life for ¹³O(β⁺)¹³N

Recommended value (July, 2015):	8.58 ± 0.07 ms
Summary Table of Uncertainty Analysis:	(PDF)
Measured values:	8.7 ± 0.4 ms	(1965MC09)
	8.95 ± 0.20 ms	(1970ES03)
	8.55 ± 0.05 ms	(1990AS01)

Previous Measurements

 

Decay to 13N* (MeV)	Jπ	Ep (c.m.) (MeV) to							relative intensity				% of all β-decays			log ft
		12C(0)	12C*(4.4)	12C(0)	12C*(4.4)	12C(0)	12C*(4.4)	12C*(7.7)
		(1965MC09)		(1970ES03)		(2005KN02)			(1965MC09)	(1970ES03)	(1990AS01)	(2005KN02)	(1970ES03)	(1990AS01)	(2005KN02) a	(1970ES03)	b	(2005KN02) a
0	1/2-												88.1 ± 3.4 c	89.2 ± 2.2	88.7 ± 2.0	4.10 ± 0.02 c	4.08 ± 0.02 f	4.08 ± 0.02
3.51	3/2-			observed		1.5597 ± 0.0010				100	100	100	10.7 ± 3.1	9.8 ± 2.0	9.8	4.52 ± 0.13	4.55 ± 0.09	4.55
7.38	5/2-			5.48 ± 0.05		5.445 ± 0.006			< 15	0.33 ± 0.10	0.17 ± 0.07	0.09 ± 0.04	0.40 ± 0.19 d	0.18 ± 0.09	0.24 ± 0.02	5.22 ± 0.23	5.56 ± 0.22	5.44 ± 0.13
					not seen		1.006 ± 0.006 g				1.7 ± 0.8 e	2.4 ± 0.3
8.92	1/2-	6.93 ± 0.04		observed		7.030 ± 0.006			100	3.5 ± 0.3	4.83 ± 0.51	5.3 ± 0.4	0.54 ± 0.16	0.61 ± 0.14	0.96 ± 0.04	4.73 ± 0.14	4.66 ± 0.10	4.45 ± 0.10
					2.56 ± 0.05		2.591 ± 0.006				1.44 ± 0.25	4.5 ± 0.3
9.48	3/2-	7.55 ± 0.04		observed		7.614 ± 0.006			24	0.8 ± 0.1	0.98 ± 0.14	1.40 ± 0.13	0.13 ± 0.04	0.16 ± 0.04	0.24 ± 0.02	5.18 ± 0.14	5.09 ± 0.11	4.89 ± 0.11
					3.12 ± 0.05		3.175 ± 0.006			0.43 ± 0.15	0.61 ± 0.15	1.06 ± 0.11
10.36	5/2-			observed						0.05 ± 0.03 e	0.05 ± 0.03		0.019 ± 0.012	0.02 ± 0.01		5.8 ± 0.3	5.7+0.3-0.2
					3.97 ± 0.05					0.13 ± 0.07	0.12 ± 0.08 e
11.70	5/2-					9.78 ± 0.06						0.15 ± 0.04			0.015 ± 0.008			5.4 ± 0.3
13.26	?-					11.32 ± 0.09						0.11 ± 0.09			0.011 ± 0.003			4.8 ± 0.3
15.06	3/2-					13.152 ± 0.053						0.049 ± 0.007			0.019 ± 0.004			3.12 ± 0.17
							8.714 ± 0.053					0.030 ± 0.005 h
								7.396 ± 0.053				0.011 ± 0.002 h
15.3	(3/2)-					13.5 ± 0.4						0.04 ± 0.03			0.004 ± 0.002			3.3 ± 0.7

a) Normalized to the 3.502-MeV state in (1990AS01).

b) M.J. Martin, private communication to Fay Ajzenberg-Selove, (1991AJ01).

c) The ground-state ft was taken to be 1.15 times that for 13B (1970ES03).

d) Includes a calculation relative intensity of (3.4 ± 1.4) to 12C*(4.4) from F.C. Barker's observation.

e) Calculated value form the known ratio of the elastic and inelastic widths.

f) Estimated.

g) Ep = 0.994 MeV (1990AS01).

h) The decay branches of the IAS were fixed to values from (1991AJ01).

---

¹³N(β⁺)¹³C Evaluated Data

A = 13 Beta-Decays Diagram

Back to Top

Back to Ground-State Decays Data Main Page

Back to Datacomp Home Page

Last modified: 24 June 2021