R-matrix approach at the intersection with the statistical model regime

A hybrid R-matrix approach is proposed which combines the pole term decomposition of the R-matrix and a background R-matrix which is based on a coupled-channel pseudo-potential. The pseudo-potential is appropriately chosen in order to recover the observables obtained by the statistical model at the...

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Main Authors:	Srdinko Thomas, Leeb Helmut
Format:	Article
Language:	English
Published:	EDP Sciences 2017-01-01
Series:	EPJ Web of Conferences
Online Access:	https://doi.org/10.1051/epjconf/201714612030

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spelling	doaj-b529e02fb5a24a418aee9fcae04e00652021-08-02T07:45:39ZengEDP SciencesEPJ Web of Conferences2100-014X2017-01-011461203010.1051/epjconf/201714612030epjconf-nd2016_12030R-matrix approach at the intersection with the statistical model regimeSrdinko ThomasLeeb HelmutA hybrid R-matrix approach is proposed which combines the pole term decomposition of the R-matrix and a background R-matrix which is based on a coupled-channel pseudo-potential. The pseudo-potential is appropriately chosen in order to recover the observables obtained by the statistical model at the energy-onset of its validity. The additional pole terms describe the resonance structure at low energy not attainable in statistical model calculations. Due to its construction the hybrid method allows a smooth transition at the intersection with the statistical model regime. A new R-matrix code based on this hybrid approach was constructed. First applications to n-16O nuclear data between 0.2 and 5.0 MeV are very promising.https://doi.org/10.1051/epjconf/201714612030
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Srdinko Thomas Leeb Helmut
spellingShingle	Srdinko Thomas Leeb Helmut R-matrix approach at the intersection with the statistical model regime EPJ Web of Conferences
author_facet	Srdinko Thomas Leeb Helmut
author_sort	Srdinko Thomas
title	R-matrix approach at the intersection with the statistical model regime
title_short	R-matrix approach at the intersection with the statistical model regime
title_full	R-matrix approach at the intersection with the statistical model regime
title_fullStr	R-matrix approach at the intersection with the statistical model regime
title_full_unstemmed	R-matrix approach at the intersection with the statistical model regime
title_sort	r-matrix approach at the intersection with the statistical model regime
publisher	EDP Sciences
series	EPJ Web of Conferences
issn	2100-014X
publishDate	2017-01-01
description	A hybrid R-matrix approach is proposed which combines the pole term decomposition of the R-matrix and a background R-matrix which is based on a coupled-channel pseudo-potential. The pseudo-potential is appropriately chosen in order to recover the observables obtained by the statistical model at the energy-onset of its validity. The additional pole terms describe the resonance structure at low energy not attainable in statistical model calculations. Due to its construction the hybrid method allows a smooth transition at the intersection with the statistical model regime. A new R-matrix code based on this hybrid approach was constructed. First applications to n-16O nuclear data between 0.2 and 5.0 MeV are very promising.
url	https://doi.org/10.1051/epjconf/201714612030
work_keys_str_mv	AT srdinkothomas rmatrixapproachattheintersectionwiththestatisticalmodelregime AT leebhelmut rmatrixapproachattheintersectionwiththestatisticalmodelregime
_version_	1721239060089929728

R-matrix approach at the intersection with the statistical model regime

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