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25 April 2024

» arxiv » nucl-ex/0406009

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The stellar (n,gamma) cross section of 62Ni
H. Nassar ; M. Paul ; I. Ahmad ; D. Berkovits ; M. Bettan ; P. Collon ; S. Dababneh ; S. Ghelberg ; J.P.Greene ; A. Heger ; M. Heil ; D.J. Henderson ; C.L. Jiang ; F. Kaeppeler ; H. Koivisto ; S. O’Brien ; R.C. Pardo ; N. Patronis ; T. Pennington ; R. Plag ; K.E. Rehm ; R. Reifarth ; R. Scott ; S. Sinha ; X. Tang ; R. Vondrasek ;
Date:	5 Jun 2004
Journal:	Phys.Rev.Lett. 94 (2005) 092504
Subject:	nucl-ex
Abstract:	The 62Ni(n,gamma)63Ni(t_1/2=100+-2 yrs) reaction plays an important role in the control of the flow path of the slow neutron-capture (s-) nucleosynthesis process. We have measured for the first time the total cross section of this reaction for a quasi-Maxwellian (kT = 25 keV) neutron flux. The measurement was performed by fast-neutron activation, combined with accelerator mass spectrometry to detect directly the 63Ni product nuclei. The experimental value of 28.4+-2.8 mb, fairly consistent with a recent theoretical estimate, affects the calculated net yield of 62Ni itself and the whole distribution of nuclei with 62
Source:	arXiv, nucl-ex/0406009
Other source:	[GID 856917] nucl-ex/0406009
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