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Density and isospin asymmetry dependence of high-momentum components

Rios Huguet, A, Polls, A and Dickhoff, WH (2014) Density and isospin asymmetry dependence of high-momentum components Physical Review C: Nuclear Physics, 89. (Submitted)


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We study the one-body momentum distribution at different densities in nuclear matter, with special emphasis on its components at high momentum. Explicit calculations for finite neutron-proton asymmetry, based on the ladder self-consistent Green's function approach, allow us to access the isospin dependence of momentum distributions and elucidate their role in neutron-rich systems. Comparisons with the deuteron momentum distribution indicate that a substantial proportion of high-momentum components are dominated by tensor correlations. We identify the density dependence of these tensor correlations in the momentum distributions. Further, we find that high-momentum components are determined by the density of each sub-species and we provide a new isospin asymmetry scaling of these components. We use different realistic nucleon-nucleon interactions to quantify the model dependence of our results.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Physics
Authors :
Rios Huguet, A
Polls, A
Dickhoff, WH
Date : 4 April 2014
DOI : 10.1103/PhysRevC.89.044303
Additional Information : This is an arXiv publication.
Depositing User : Symplectic Elements
Date Deposited : 14 Jan 2014 10:33
Last Modified : 09 Jun 2014 13:53

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