Single- and two-nucleon momentum distributions for local chiral interactions

Lonardoni, Diego; Gandolfi, Stefano; Wang, Xiaobao B.; Carlson, Joseph Allen

doi:10.1103/PhysRevC.98.014322

Title: Single- and two-nucleon momentum distributions for local chiral interactions

Journal Article · 19 July 2018 · Physical Review C

DOI: https://doi.org/10.1103/PhysRevC.98.014322 · OSTI ID:1467218

^[1];

^[2]; Wang, Xiaobao B. ^[3];

^[2]

Michigan State Univ., East Lansing, MI (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Huzhou Univ., Huzhou (China)

Here, we present quantum Monte Carlo calculations of the single- and two-nucleon momentum distributions in selected nuclei for A≤16. We employ local chiral interactions at next-to-next-to-leading order. We find good agreement at low momentum with the single-nucleon momentum distributions derived for phenomenological potentials. The same agreement is found for the integrated two-nucleon momentum distributions at low relative momentum q and low center-of-mass momentum Q. We provide results for the two-nucleon momentum distributions as a function of both q and Q. The large ratio of pn to pp pairs around q = 2 fm^–1 for back-to-back (Q = 0) pairs is confirmed up to ¹⁶O, and results are compatible with those extracted from available experimental data.

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Research Organization:: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26); National Natural Science Foundation of China; China Scholarship Council

Grant/Contract Number:: AC52-06NA25396; AC02-05CH11231

OSTI ID:: 1467218

Report Number(s):: LA-UR--18-22852

Journal Information:: Physical Review C, Journal Name: Physical Review C Journal Issue: 1 Vol. 98; ISSN PRVCAN; ISSN 2469-9985

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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