12B(n,γ)—the influence on r-process nucleosynthesis of light elements.

Authors :: Lee, H. Y.
Goodman, N. J.
Jiang, C. L.
Lighthall, J. C.
Marley, S. T.
Notani, M.
Pardo, R. C.
Patel, N.
Rehm, K. E.
Schiffer, J. P.
Tang, X.
Wuosmaa, A. H.
Source :: AIP Conference Proceedings; 3/4/2009, Vol. 1098 Issue 1, p169-174, 6p, 1 Diagram, 3 Graphs
Publication Year :: 2009
Abstract: Because of interest in the <superscript>11,12</superscript>B(n,γ) reaction in seeding r-process nucleosynthesis through light neutron-rich nuclei, we have measured the <superscript>12</superscript>B(d,p) reaction for the first time using the ATLAS in-flight facility at Argonne National Laboratory. We also measured the <superscript>11</superscript>B(d,p) reaction in the same way for calibration. The spectroscopic factors of excited states and the branching ratio of the neutron-unbound state in <superscript>12</superscript>B are obtained from the current experiment and the reaction rate for <superscript>11</superscript>B(n,γ) is discussed in comparison with the theoretical prediction. [ABSTRACT FROM AUTHOR]