Dispersive optical-model and coupled-channels descriptions of neutron scattering from [Formula Presented] and [Formula Presented] up to [Formula Presented]

M. M. Nagadi, C. R. Howell, W. Tornow, Gary Weisel, M. A. Al-Ohali, R. T. Braun, H. R. Setze, Zemin Chen, R. L. Walter, J. P. Delaroche, P. Romain

Research output: Contribution to journalArticle

Abstract

Differential cross sections [Formula Presented] and analyzing powers [Formula Presented] have been measured for neutron scattering from [Formula Presented] and [Formula Presented] at [Formula Presented] at the Triangle Universities Nuclear Laboratory using standard time-of-flight techniques. In addition, [Formula Presented] was measured for [Formula Presented] at 10, 12, 14, 17, and [Formula Presented]. Two large databases covering the energy range from 0.1 to [Formula Presented] were formed for these nuclei from this new data and previously published data, including that for the total cross section [Formula Presented]. These sets of data were analyzed using spherical dispersive optical-model (DOM) potentials, as well as coupled-channels model (CCM) potentials. The [Formula Presented] DOM gives good agreement with the [Formula Presented] data, except in the region of the first minimum. It also gives a reasonable description of our [Formula Presented] measurement. The [Formula Presented] DOM gives good agreement with the data, except for [Formula Presented] at backward angles below [Formula Presented] and for [Formula Presented], for which there is up to [Formula Presented] disagreement in the [Formula Presented] range. Compared to the DOM, the [Formula Presented] CCM calculations give improved agreement with the [Formula Presented] data, especially at the first minimum. The [Formula Presented] calculations agree with the data to within about [Formula Presented] above [Formula Presented]. The three-level CCM calculations for [Formula Presented] give excellent agreement with the entire database.

Original languageEnglish (US)
Number of pages1
JournalPhysical Review C - Nuclear Physics
Volume68
Issue number4
DOIs
StatePublished - Jan 1 2003

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neutron scattering
cross sections

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

Nagadi, M. M. ; Howell, C. R. ; Tornow, W. ; Weisel, Gary ; Al-Ohali, M. A. ; Braun, R. T. ; Setze, H. R. ; Chen, Zemin ; Walter, R. L. ; Delaroche, J. P. ; Romain, P. / Dispersive optical-model and coupled-channels descriptions of neutron scattering from [Formula Presented] and [Formula Presented] up to [Formula Presented]. In: Physical Review C - Nuclear Physics. 2003 ; Vol. 68, No. 4.
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title = "Dispersive optical-model and coupled-channels descriptions of neutron scattering from [Formula Presented] and [Formula Presented] up to [Formula Presented]",
abstract = "Differential cross sections [Formula Presented] and analyzing powers [Formula Presented] have been measured for neutron scattering from [Formula Presented] and [Formula Presented] at [Formula Presented] at the Triangle Universities Nuclear Laboratory using standard time-of-flight techniques. In addition, [Formula Presented] was measured for [Formula Presented] at 10, 12, 14, 17, and [Formula Presented]. Two large databases covering the energy range from 0.1 to [Formula Presented] were formed for these nuclei from this new data and previously published data, including that for the total cross section [Formula Presented]. These sets of data were analyzed using spherical dispersive optical-model (DOM) potentials, as well as coupled-channels model (CCM) potentials. The [Formula Presented] DOM gives good agreement with the [Formula Presented] data, except in the region of the first minimum. It also gives a reasonable description of our [Formula Presented] measurement. The [Formula Presented] DOM gives good agreement with the data, except for [Formula Presented] at backward angles below [Formula Presented] and for [Formula Presented], for which there is up to [Formula Presented] disagreement in the [Formula Presented] range. Compared to the DOM, the [Formula Presented] CCM calculations give improved agreement with the [Formula Presented] data, especially at the first minimum. The [Formula Presented] calculations agree with the data to within about [Formula Presented] above [Formula Presented]. The three-level CCM calculations for [Formula Presented] give excellent agreement with the entire database.",
author = "Nagadi, {M. M.} and Howell, {C. R.} and W. Tornow and Gary Weisel and Al-Ohali, {M. A.} and Braun, {R. T.} and Setze, {H. R.} and Zemin Chen and Walter, {R. L.} and Delaroche, {J. P.} and P. Romain",
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Dispersive optical-model and coupled-channels descriptions of neutron scattering from [Formula Presented] and [Formula Presented] up to [Formula Presented]. / Nagadi, M. M.; Howell, C. R.; Tornow, W.; Weisel, Gary; Al-Ohali, M. A.; Braun, R. T.; Setze, H. R.; Chen, Zemin; Walter, R. L.; Delaroche, J. P.; Romain, P.

In: Physical Review C - Nuclear Physics, Vol. 68, No. 4, 01.01.2003.

Research output: Contribution to journalArticle

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T1 - Dispersive optical-model and coupled-channels descriptions of neutron scattering from [Formula Presented] and [Formula Presented] up to [Formula Presented]

AU - Nagadi, M. M.

AU - Howell, C. R.

AU - Tornow, W.

AU - Weisel, Gary

AU - Al-Ohali, M. A.

AU - Braun, R. T.

AU - Setze, H. R.

AU - Chen, Zemin

AU - Walter, R. L.

AU - Delaroche, J. P.

AU - Romain, P.

PY - 2003/1/1

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N2 - Differential cross sections [Formula Presented] and analyzing powers [Formula Presented] have been measured for neutron scattering from [Formula Presented] and [Formula Presented] at [Formula Presented] at the Triangle Universities Nuclear Laboratory using standard time-of-flight techniques. In addition, [Formula Presented] was measured for [Formula Presented] at 10, 12, 14, 17, and [Formula Presented]. Two large databases covering the energy range from 0.1 to [Formula Presented] were formed for these nuclei from this new data and previously published data, including that for the total cross section [Formula Presented]. These sets of data were analyzed using spherical dispersive optical-model (DOM) potentials, as well as coupled-channels model (CCM) potentials. The [Formula Presented] DOM gives good agreement with the [Formula Presented] data, except in the region of the first minimum. It also gives a reasonable description of our [Formula Presented] measurement. The [Formula Presented] DOM gives good agreement with the data, except for [Formula Presented] at backward angles below [Formula Presented] and for [Formula Presented], for which there is up to [Formula Presented] disagreement in the [Formula Presented] range. Compared to the DOM, the [Formula Presented] CCM calculations give improved agreement with the [Formula Presented] data, especially at the first minimum. The [Formula Presented] calculations agree with the data to within about [Formula Presented] above [Formula Presented]. The three-level CCM calculations for [Formula Presented] give excellent agreement with the entire database.

AB - Differential cross sections [Formula Presented] and analyzing powers [Formula Presented] have been measured for neutron scattering from [Formula Presented] and [Formula Presented] at [Formula Presented] at the Triangle Universities Nuclear Laboratory using standard time-of-flight techniques. In addition, [Formula Presented] was measured for [Formula Presented] at 10, 12, 14, 17, and [Formula Presented]. Two large databases covering the energy range from 0.1 to [Formula Presented] were formed for these nuclei from this new data and previously published data, including that for the total cross section [Formula Presented]. These sets of data were analyzed using spherical dispersive optical-model (DOM) potentials, as well as coupled-channels model (CCM) potentials. The [Formula Presented] DOM gives good agreement with the [Formula Presented] data, except in the region of the first minimum. It also gives a reasonable description of our [Formula Presented] measurement. The [Formula Presented] DOM gives good agreement with the data, except for [Formula Presented] at backward angles below [Formula Presented] and for [Formula Presented], for which there is up to [Formula Presented] disagreement in the [Formula Presented] range. Compared to the DOM, the [Formula Presented] CCM calculations give improved agreement with the [Formula Presented] data, especially at the first minimum. The [Formula Presented] calculations agree with the data to within about [Formula Presented] above [Formula Presented]. The three-level CCM calculations for [Formula Presented] give excellent agreement with the entire database.

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