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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:
; ; ; ; ;
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:  
FG02-13ER42025; SC0009971; PHY-1068022; NNX11AC41G; 11047157; 11205083; 11275125; 11135011; 11320101004; 2015CB856904; 2013CB834405; 11QH1401100; 11DZ2260700
Resource Type:
Published Article
Journal Name:
Physics Letters B
Additional Journal Information:
Journal Name: Physics Letters B Journal Volume: 743 Journal Issue: C; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Country of Publication:
Netherlands
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. Netherlands: 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. Netherlands. 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". Netherlands. 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 B},
number = C,
volume = 743,
place = {Netherlands},
year = {2015},
month = {4}
}

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

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Works referencing / citing this record:

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Towards understanding astrophysical effects of nuclear symmetry energy
journal, July 2019


Limiting symmetry energy elements from empirical evidence
journal, March 2017

  • Agrawal, B. K.; Samaddar, S. K.; De, J. N.
  • International Journal of Modern Physics E, Vol. 26, Issue 05
  • DOI: 10.1142/s0218301317500227

Correlations among symmetry energy elements in Skyrme models
journal, September 2018

  • Mondal, C.; Agrawal, B. K.; De, J. N.
  • International Journal of Modern Physics E, Vol. 27, Issue 09
  • DOI: 10.1142/s0218301318500787