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Title: Role of core excitation in ( d , p ) transfer reactions

Abstract

In our recent work we found that core excitations can be important in extracting structure information from (d,p) reactions. Our objective is to systematically explore the role of core excitation in (d,p) reactions and to understand the origin of the dynamical effects. Based on the particle-rotor model of n+Be 10, we generate a number of models with a range of separation energies (S n=0.1–5.0 MeV), while maintaining a significant core excited component. We then apply the latest extension of the momentum-space-based Faddeev method, including dynamical core excitation in the reaction mechanism to all orders, to the Be 10(d,p)Be 11-like reactions, and study the excitation effects for beam energies E d=15–90 MeV. We study the resulting angular distributions and the differences between the spectroscopic factor that would be extracted from the cross sections, when including dynamical core excitation in the reaction, and that of the original structure model. We also explore how different partial waves affect the final cross section. Our results show a strong beam-energy dependence of the extracted spectroscopic factors that become smaller for intermediate beam energies. Finally, this dependence increases for loosely bound systems.

Authors:
 [1];  [2];  [1];  [2]
  1. Vilnius Univ. (Lithuania). Inst. of Theoretical Physics and Astronomy
  2. Michigan State Univ., East Lansing, MI (United States). National Superconducting Cyclotron Lab. and Dept. of Physics and Astronomy
Publication Date:
Research Org.:
Michigan State Univ., East Lansing, MI (United States)
Sponsoring Org.:
USDOE; National Science Foundation (NSF)
OSTI Identifier:
1332335
Alternate Identifier(s):
OSTI ID: 1329947
Grant/Contract Number:  
FG52-08NA28552; FG52- 08NA28552
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review C
Additional Journal Information:
Journal Volume: 94; Journal Issue: 4; Journal ID: ISSN 2469-9985
Publisher:
APS
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats

Deltuva, A., Ross, A., Norvaišas, E., and Nunes, F. M. Role of core excitation in (d,p) transfer reactions. United States: N. p., 2016. Web. doi:10.1103/PhysRevC.94.044613.
Deltuva, A., Ross, A., Norvaišas, E., & Nunes, F. M. Role of core excitation in (d,p) transfer reactions. United States. doi:10.1103/PhysRevC.94.044613.
Deltuva, A., Ross, A., Norvaišas, E., and Nunes, F. M. Mon . "Role of core excitation in (d,p) transfer reactions". United States. doi:10.1103/PhysRevC.94.044613. https://www.osti.gov/servlets/purl/1332335.
@article{osti_1332335,
title = {Role of core excitation in (d,p) transfer reactions},
author = {Deltuva, A. and Ross, A. and Norvaišas, E. and Nunes, F. M.},
abstractNote = {In our recent work we found that core excitations can be important in extracting structure information from (d,p) reactions. Our objective is to systematically explore the role of core excitation in (d,p) reactions and to understand the origin of the dynamical effects. Based on the particle-rotor model of n+Be10, we generate a number of models with a range of separation energies (Sn=0.1–5.0 MeV), while maintaining a significant core excited component. We then apply the latest extension of the momentum-space-based Faddeev method, including dynamical core excitation in the reaction mechanism to all orders, to the Be10(d,p)Be11-like reactions, and study the excitation effects for beam energies Ed=15–90 MeV. We study the resulting angular distributions and the differences between the spectroscopic factor that would be extracted from the cross sections, when including dynamical core excitation in the reaction, and that of the original structure model. We also explore how different partial waves affect the final cross section. Our results show a strong beam-energy dependence of the extracted spectroscopic factors that become smaller for intermediate beam energies. Finally, this dependence increases for loosely bound systems.},
doi = {10.1103/PhysRevC.94.044613},
journal = {Physical Review C},
number = 4,
volume = 94,
place = {United States},
year = {2016},
month = {10}
}

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Cited by: 8 works
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