Spatial measure of reaction size in proton scattering
The microscopic coupled-channel (MCC) calculations for proton + 12C inelastic scattering are performed in the energy range of Ep = 29.95 MeV to 65 MeV. The nuclear interactions for the proton −12C system are constructed from the folding model, which employs the internal wave function of 12C, obtaine...
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doaj-90acbf476b8548acb41d4b7e28649dea2021-08-02T13:57:46ZengEDP SciencesEPJ Web of Conferences2100-014X2016-01-011220600410.1051/epjconf/201612206004epjconf_cnr2016_06004Spatial measure of reaction size in proton scatteringIto MakotoIwasaki Masataka0Otani Reiji1Tomita Masashi2Department of Pure and Applied Physics, Kansai UniversityDepartment of Pure and Applied Physics, Kansai UniversityDepartment of Pure and Applied Physics, Kansai UniversityThe microscopic coupled-channel (MCC) calculations for proton + 12C inelastic scattering are performed in the energy range of Ep = 29.95 MeV to 65 MeV. The nuclear interactions for the proton −12C system are constructed from the folding model, which employs the internal wave function of 12C, obtained from the 3α resonating group method (3α RGM), and an effective nucleon-nucleon interaction of the density-dependent Michigan three-range Yukawa (DDM3Y). The MCC calculation with the 3α RGM + DDM3Y nicely reproduces all of the differential cross sections for elastic and inelastic scattering in the angular range of θc.m. = 30° to 120°. We introduce a scattering radius, which characterizes a spatial size of the scattering area, from partial wave decompositions of an angle-integrated cross section. The scattering radii for the elastic scattering and the various inelastic channels, which involve the rotational or vibrational excitations and the 3α excitations in 12C, are derived. We found that the scattering radii for the inelastic channels with a well developed 3α structure are strongly enhanced in comparison to the scattering radii for the elastic and collective channels. This enhancement of the scattering radius for the 3α channel strongly suggests that the scattering radius is sensitive to a size of the intrinsic structure of the finally excited state in the scattering process.http://dx.doi.org/10.1051/epjconf/201612206004 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ito Makoto Iwasaki Masataka Otani Reiji Tomita Masashi |
spellingShingle |
Ito Makoto Iwasaki Masataka Otani Reiji Tomita Masashi Spatial measure of reaction size in proton scattering EPJ Web of Conferences |
author_facet |
Ito Makoto Iwasaki Masataka Otani Reiji Tomita Masashi |
author_sort |
Ito Makoto |
title |
Spatial measure of reaction size in proton scattering |
title_short |
Spatial measure of reaction size in proton scattering |
title_full |
Spatial measure of reaction size in proton scattering |
title_fullStr |
Spatial measure of reaction size in proton scattering |
title_full_unstemmed |
Spatial measure of reaction size in proton scattering |
title_sort |
spatial measure of reaction size in proton scattering |
publisher |
EDP Sciences |
series |
EPJ Web of Conferences |
issn |
2100-014X |
publishDate |
2016-01-01 |
description |
The microscopic coupled-channel (MCC) calculations for proton + 12C inelastic scattering are performed in the energy range of Ep = 29.95 MeV to 65 MeV. The nuclear interactions for the proton −12C system are constructed from the folding model, which employs the internal wave function of 12C, obtained from the 3α resonating group method (3α RGM), and an effective nucleon-nucleon interaction of the density-dependent Michigan three-range Yukawa (DDM3Y). The MCC calculation with the 3α RGM + DDM3Y nicely reproduces all of the differential cross sections for elastic and inelastic scattering in the angular range of θc.m. = 30° to 120°. We introduce a scattering radius, which characterizes a spatial size of the scattering area, from partial wave decompositions of an angle-integrated cross section. The scattering radii for the elastic scattering and the various inelastic channels, which involve the rotational or vibrational excitations and the 3α excitations in 12C, are derived. We found that the scattering radii for the inelastic channels with a well developed 3α structure are strongly enhanced in comparison to the scattering radii for the elastic and collective channels. This enhancement of the scattering radius for the 3α channel strongly suggests that the scattering radius is sensitive to a size of the intrinsic structure of the finally excited state in the scattering process. |
url |
http://dx.doi.org/10.1051/epjconf/201612206004 |
work_keys_str_mv |
AT itomakoto spatialmeasureofreactionsizeinprotonscattering AT iwasakimasataka spatialmeasureofreactionsizeinprotonscattering AT otanireiji spatialmeasureofreactionsizeinprotonscattering AT tomitamasashi spatialmeasureofreactionsizeinprotonscattering |
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1721231659691409408 |