The nuclear contacts and short range correlations in nuclei

Weiss, R.; Cruz-Torres, R.; Barnea, N.; Piasetzky, E.; Hen, O.

doi:10.1016/j.physletb.2018.01.061

Title: The nuclear contacts and short range correlations in nuclei

Journal Article · Tue May 01 00:00:00 EDT 2018 · Physics Letters B

DOI:https://doi.org/10.1016/j.physletb.2018.01.061· OSTI ID:1745066

Weiss, R.; Cruz-Torres, R.; Barnea, N.; Piasetzky, E.;

Atomic nuclei are complex strongly interacting systems and their exact theoretical description is a long-standing challenge. An approximate description of nuclei can be achieved by separating its short and long range structure. This separation of scales stands at the heart of the nuclear shell model and effective field theories that describe the long-range structure of the nucleus using a mean-field approximation. We present here an effective description of the complementary short-range structure using contact terms and stylized two-body asymptotic wave functions. The possibility to extract the nuclear contacts from experimental data is presented. Regions in the two-body momentum distribution dominated by high-momentum, close-proximity, nucleon pairs are identified and compared to experimental data. The amount of short-range correlated (SRC) nucleon pairs is determined and compared to measurements. Non-combinatorial isospin symmetry for SRC pairs is identified. The obtained one-body momentum distributions indicate dominance of SRC pairs above the nuclear Fermi-momentum.

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Research Organization:: Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP)

Grant/Contract Number:: FG02-94ER40818

OSTI ID:: 1745066

Alternate ID(s):: OSTI ID: 1499372

Journal Information:: Physics Letters B, Journal Name: Physics Letters B Vol. 780 Journal Issue: C; ISSN 0370-2693

Publisher:: ElsevierCopyright Statement

Country of Publication:: Netherlands

Language:: English

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Cited by: 37 works

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