skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

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. https://doi.org/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. https://doi.org/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. https://doi.org/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
https://doi.org/10.1016/j.physletb.2015.03.005

Citation Metrics:
Cited by: 20 works
Citation information provided by
Web of Science

Save / Share:

Works referenced in this record:

Global phenomenological optical model potential for nucleon-actinide reactions at energies up to 300 MeV
journal, February 2010


Effects of momentum-dependent symmetry potential on heavy-ion collisions induced by neutron-rich nuclei
journal, May 2004


The energy and isotopic spin dependence of the nuclear optical model potential
journal, January 1964


Global dispersive optical model potential for proton as projectile in the energy region up to 200 MeV
journal, March 2008


Momentum dependence of the symmetry potential and nuclear reactions induced by neutron-rich nuclei at RIA
journal, January 2004


Many-body theory of nuclear matter
journal, May 1976


Global deuteron optical model potential for the energy range up to 183 MeV
journal, May 2006


Local and global nucleon optical models from 1 keV to 200 MeV
journal, January 2003


Nuclear Potential and Symmetry Energy
journal, January 1958


Analytical relations between nuclear symmetry energy and single-nucleon potentials in isospin asymmetric nuclear matter
journal, August 2011


Momentum, density, and isospin dependence of symmetric and asymmetric nuclear matter properties
journal, December 2005


Asymmetric nuclear matter equation of state
journal, November 1991


Isospin splitting of the nucleon mean field
journal, July 2005


APMN: A Program for Automatically Searching Optimal Optical Potential Parameters in the E ≤ 300 MeV Energy Region
journal, May 2002


A global optical-model analysis of neutron elastic scattering data
journal, October 1979


Global triton optical model potential
journal, June 2007


Dependence of the Fermi energy upon neutron excess
journal, May 1991


Extracting the nuclear symmetry potential and energy from neutron–nucleus scattering data
journal, April 2013


Constraining the neutron-proton effective mass splitting in neutron-rich matter
journal, June 2004


Recent progress and new challenges in isospin physics with heavy-ion reactions
journal, August 2008


Modelization of the EOS
journal, September 2006


Effective mass in nuclei
journal, May 1968


Effect of the splitting of the neutron and proton effective masses on the nuclear symmetry energy at finite temperatures
journal, March 2011


Constraints on nucleon effective mass splitting with heavy ion collisions
journal, May 2014


On the Landau effective mass in asymmetric nuclear matter
journal, July 1976


An energy-dependent Lane-model nucleon-nucleus optical potential
journal, June 1976


Isospin dependent global neutron–nucleus optical model potential
journal, January 2012


Information content of a new observable: The case of the nuclear neutron skin
journal, May 2010


Isospin dependent global nucleon-nucleus optical model at intermediate energies
journal, September 2009


Transport properties of isospin effective mass splitting
journal, February 2004


Isovector component of the optical potential
journal, October 2008


Global Dirac optical potentials for elastic proton scattering from heavy nuclei
journal, June 1990


Effective masses in relativistic approaches to the nucleon-nucleus mean field
journal, July 1989


A theorem on the single particle energy in a Fermi gas with interaction
journal, January 1958


A global nucleon optical model potential
journal, March 1991


Fast nucleon emission as a probe of the momentum dependence of the symmetry potential
journal, December 2005


Single-nucleon potential decomposition of the nuclear symmetry energy
journal, February 2012


Isospin splitting of the nucleon-nucleus optical potential
journal, December 2009