Single neutron transfer on 23Ne and its relevance for the pathway of nucleosynthesis in astrophysical X-ray bursts
Single neutron transfer on 23Ne and its relevance for the pathway of nucleosynthesis in astrophysical X-ray bursts
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23Ne 上的单中子转移及其与天体物理 X 射线爆发中核合成途径的相关性
DOI:
10.1016/j.physletb.2022.137361
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发表时间:
2022
影响因子:
4.4
通讯作者:
Lotay G
中科院分区:
文献类型:
--
作者:
Lotay G
We present new experimental measurements of resonance strengths in the astrophysical 23 Al (p, γ) 24 Si reaction, constraining the pathway of nucleosynthesis beyond 22 Mg in X-ray burster scenarios. Specifically, we have performed the first measurement of the (d, p) reaction using a radioactive beam of 23 Ne to explore levels in 24 Ne, the mirror analog of 24 Si. Four strong single-particle states were observed and corresponding neutron spectroscopic factors were extracted with a precision of∼ 20%. Using these spectroscopic factors, together with mirror state identifications, we have reduced uncertainties in the strength of the key ℓ= 0 resonance at E r= 157 keV, in the astrophysical 23 Al (p, γ) reaction, by a factor of 4. Our results show that the 22 Mg (p, γ) 23 Al (p, γ) pathway dominates over the competing 22 Mg (α, p) reaction in all but the most energetic X-ray burster events (T> 0.85 GK), significantly affecting energy production and the preservation of hydrogen fuel.
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影响因子:
4.8
作者:
G. Merz;Z. Meisel
通讯作者:
G. Merz;Z. Meisel
影响因子:
4.9
作者:
Z. Meisel
通讯作者:
Z. Meisel
DOI:
--
发表时间:
1999
期刊:
影响因子:
--
作者:
C. Iliadis;P. Endt;N. Prantzos;W. J. Thompson
通讯作者:
W. J. Thompson
DOI:
--
发表时间:
1977
期刊:
影响因子:
--
作者:
G. Berg;R. Das;S. Datta;P. Quin
通讯作者:
P. Quin
DOI:
--
发表时间:
2005
期刊:
影响因子:
--
作者:
A. Sibirtsev;J. Haidenbauer;Hans;S. Krewald
通讯作者:
S. Krewald