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Title: Neutron–proton effective mass splitting in neutron-rich matter at normal density from analyzing nucleon–nucleus scattering data within an isospin dependent optical model

Abstract

The neutron–proton effective mass splitting in asymmetric nucleonic matter of isospin asymmetry δ and normal density is found to be m* n-p≡(m* n – m* p)/m = (0.41 ± 0.15)δ from analyzing globally 1088 sets of reaction and angular differential cross sections of proton elastic scattering on 130 targets with beam energies from 0.783 MeV to 200 MeV, and 1161 sets of data of neutron elastic scattering on 104 targets with beam energies from 0.05 MeV to 200 MeV within an isospin dependent non-relativistic optical potential model. It sets a useful reference for testing model predictions on the momentum dependence of the nucleon isovector potential necessary for understanding novel structures and reactions of rare isotopes.

Authors:
 [1];  [2];  [3];  [4];  [1];  [1]
  1. Texas A&M University-Commerce, Commerce, TX (United States)
  2. Texas A&M University-Commerce, Commerce, TX (United States); Univ. of Shanghai for Science and Technology, Shanghai (China)
  3. Texas A&M University-Commerce, Commerce, TX (United States); Xi'an Jiaotong Univ., Xian (China)
  4. Shanghai Jiao Tong Univ., Shanghai (China)
Publication Date:
Research Org.:
Texas A & M Univ., Commerce, TX (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1198541
Alternate Identifier(s):
OSTI ID: 1188774
Grant/Contract Number:
PHY-1068022; NNX11AC41G; FG02-13ER42025; 11047157; 11205083; 11275125; 11135011; 11320101004; 2015CB856904; 2013CB834405; 11QH1401100; 11DZ2260700; SC0009971
Resource Type:
Journal Article: Published Article
Journal Name:
Physics Letters. Section B
Additional Journal Information:
Journal Volume: 743; Journal Issue: C; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Li, Xiao -Hua, Guo, Wen -Jun, Li, Bao -An, Chen, Lie -Wen, Fattoyev, Farrukh J., and Newton, William G. Neutron–proton effective mass splitting in neutron-rich matter at normal density from analyzing nucleon–nucleus scattering data within an isospin dependent optical model. United States: N. p., 2015. Web. doi:10.1016/j.physletb.2015.03.005.
Li, Xiao -Hua, Guo, Wen -Jun, Li, Bao -An, Chen, Lie -Wen, Fattoyev, Farrukh J., & Newton, William G. Neutron–proton effective mass splitting in neutron-rich matter at normal density from analyzing nucleon–nucleus scattering data within an isospin dependent optical model. United States. doi:10.1016/j.physletb.2015.03.005.
Li, Xiao -Hua, Guo, Wen -Jun, Li, Bao -An, Chen, Lie -Wen, Fattoyev, Farrukh J., and Newton, William G. Wed . "Neutron–proton effective mass splitting in neutron-rich matter at normal density from analyzing nucleon–nucleus scattering data within an isospin dependent optical model". United States. doi:10.1016/j.physletb.2015.03.005.
@article{osti_1198541,
title = {Neutron–proton effective mass splitting in neutron-rich matter at normal density from analyzing nucleon–nucleus scattering data within an isospin dependent optical model},
author = {Li, Xiao -Hua and Guo, Wen -Jun and Li, Bao -An and Chen, Lie -Wen and Fattoyev, Farrukh J. and Newton, William G.},
abstractNote = {The neutron–proton effective mass splitting in asymmetric nucleonic matter of isospin asymmetry δ and normal density is found to be m*n-p≡(m*n – m*p)/m = (0.41 ± 0.15)δ from analyzing globally 1088 sets of reaction and angular differential cross sections of proton elastic scattering on 130 targets with beam energies from 0.783 MeV to 200 MeV, and 1161 sets of data of neutron elastic scattering on 104 targets with beam energies from 0.05 MeV to 200 MeV within an isospin dependent non-relativistic optical potential model. It sets a useful reference for testing model predictions on the momentum dependence of the nucleon isovector potential necessary for understanding novel structures and reactions of rare isotopes.},
doi = {10.1016/j.physletb.2015.03.005},
journal = {Physics Letters. Section B},
number = C,
volume = 743,
place = {United States},
year = {Wed Apr 01 00:00:00 EDT 2015},
month = {Wed Apr 01 00:00:00 EDT 2015}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1016/j.physletb.2015.03.005

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Cited by: 20 works
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