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Quantifying short-range correlations in nuclei

Maarten Vanhalst, Jan Ryckebusch UGent and Wim Cosyn UGent (2012) PHYSICAL REVIEW C. 86(4).
abstract
Background: Short-range correlations (SRC) are an important ingredient of the dynamics of nuclei. Purpose: An approximate method to quantify the magnitude of the two-nucleon (2N) and three-nucleon (3N) short-range correlations and their mass dependence is proposed. Method: The proposed method relies on the concept of the "universality" or "local nuclear character" of the SRC. We quantify the SRC by computing the number of independent-particle model (IPM) nucleon pairs and triples which reveal beyond-mean-field behavior. It is argued that those can be identified by counting the number of nucleon pairs and triples in a zero relative orbital momentum state. A method to determine the quantum numbers of pairs and triples in an arbitrary mean-field basis is outlined. Results: The mass dependence of the 2N and 3N SRC is studied. The predictions are compared to measurements. This includes the ratio of the inclusive inelastic electron scattering cross sections of nuclei to H-2 and He-3 at large values of the Bjorken variable. Corrections stemming from the center-of-mass motion of the pairs are estimated. Conclusions: We find that the relative probability per nucleon for 2N and 3N SRC has a soft dependence with mass number A and that the proton-neutron 2N SRC outnumber the proton-proton (neutron-neutron) 2N SRC. A linear relationship between the magnitude of the EMC effect and the predicted number of proton-neutron SRC pairs is observed. This provides support for the role of local nuclear dynamics on the EMC effect.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
O-16(E, GROUND-STATE, SPECTRAL-FUNCTION, ELECTRON-SCATTERING, PARAMETRIZATION, DEPENDENCE, ENERGY
journal title
PHYSICAL REVIEW C
Phys. Rev. C
volume
86
issue
4
article number
044619
pages
14 pages
Web of Science type
Article
Web of Science id
000309903600006
JCR category
PHYSICS, NUCLEAR
JCR impact factor
3.715 (2012)
JCR rank
3/21 (2012)
JCR quartile
1 (2012)
ISSN
0556-2813
DOI
10.1103/PhysRevC.86.044619
project
HPC-UGent: the central High Performance Computing infrastructure of Ghent University
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
3069931
handle
http://hdl.handle.net/1854/LU-3069931
date created
2012-12-12 10:14:53
date last changed
2016-12-21 15:42:10
@article{3069931,
  abstract     = {Background: Short-range correlations (SRC) are an important ingredient of the dynamics of nuclei. 
Purpose: An approximate method to quantify the magnitude of the two-nucleon (2N) and three-nucleon (3N) short-range correlations and their mass dependence is proposed. 
Method: The proposed method relies on the concept of the {\textacutedbl}universality{\textacutedbl} or {\textacutedbl}local nuclear character{\textacutedbl} of the SRC. We quantify the SRC by computing the number of independent-particle model (IPM) nucleon pairs and triples which reveal beyond-mean-field behavior. It is argued that those can be identified by counting the number of nucleon pairs and triples in a zero relative orbital momentum state. A method to determine the quantum numbers of pairs and triples in an arbitrary mean-field basis is outlined. 
Results: The mass dependence of the 2N and 3N SRC is studied. The predictions are compared to measurements. This includes the ratio of the inclusive inelastic electron scattering cross sections of nuclei to H-2 and He-3 at large values of the Bjorken variable. Corrections stemming from the center-of-mass motion of the pairs are estimated. 
Conclusions: We find that the relative probability per nucleon for 2N and 3N SRC has a soft dependence with mass number A and that the proton-neutron 2N SRC outnumber the proton-proton (neutron-neutron) 2N SRC. A linear relationship between the magnitude of the EMC effect and the predicted number of proton-neutron SRC pairs is observed. This provides support for the role of local nuclear dynamics on the EMC effect.},
  articleno    = {044619},
  author       = {Vanhalst, Maarten and Ryckebusch, Jan and Cosyn, Wim},
  issn         = {0556-2813},
  journal      = {PHYSICAL REVIEW C},
  keyword      = {O-16(E,GROUND-STATE,SPECTRAL-FUNCTION,ELECTRON-SCATTERING,PARAMETRIZATION,DEPENDENCE,ENERGY},
  language     = {eng},
  number       = {4},
  pages        = {14},
  title        = {Quantifying short-range correlations in nuclei},
  url          = {http://dx.doi.org/10.1103/PhysRevC.86.044619},
  volume       = {86},
  year         = {2012},
}

Chicago
Vanhalst, Maarten, Jan Ryckebusch, and Wim Cosyn. 2012. “Quantifying Short-range Correlations in Nuclei.” Physical Review C 86 (4).
APA
Vanhalst, M., Ryckebusch, J., & Cosyn, W. (2012). Quantifying short-range correlations in nuclei. PHYSICAL REVIEW C, 86(4).
Vancouver
1.
Vanhalst M, Ryckebusch J, Cosyn W. Quantifying short-range correlations in nuclei. PHYSICAL REVIEW C. 2012;86(4).
MLA
Vanhalst, Maarten, Jan Ryckebusch, and Wim Cosyn. “Quantifying Short-range Correlations in Nuclei.” PHYSICAL REVIEW C 86.4 (2012): n. pag. Print.