1998YO06, 1998YOZX: ¹⁹B(β^-); measured T_1/2, β-delayed neutron emission probability.

1999RE16: ¹⁹B(β^-); measured E_γ, I_γ, βγ-, βn-coin, T_1/2, neutron emission probabilities; deduced log ft.

2003YO02: ¹⁹B(β^-), (β^-n); measured β-decay T_1/2, β-delayed neutron multiplicities. Comparison with previous work

Measured half-life for ¹⁹B(β^-)¹⁹C

Recommended value (July, 2015):	2.92 ± 0.13 ms	(2003YO02)
Summary Table of Uncertainty Analysis:	(PDF)
Measured values:	2.92 ± 0.13 ms	(2003YO02: includes re-analysis of (1998YO06) data.)
	4.5 ± 1.5 ms	(1999RE16)

Previous Measurements

 

β-delayed neutron emission
(1998YO06)	(2003YO02)
Pn	P1n	P2n	P3n
125 ± 32 % a	71.8+8.3-9.1 %	16.0+5.6-4.8 %	< 9.1 %

a) This implies the existence of strong multineutron emissions in the decay of 19B, reflecting its large Q value (26.5 MeV) compared with the multineutron separation energies of daughter nucleus 19C (S1n = 160 keV, S2n = 4.4 MeV, S3n = 5.3 MeV,...): see (1998YO06).

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¹⁹N(β^-)¹⁹O Evaluated Data

¹⁹O(β^-)¹⁹F Evaluated Data

¹⁹Ne(β⁺)¹⁹F Evaluated Data

A = 19 Beta-Decays Diagram

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Last modified: 29 June 2021