Properties of nuclear matter within the JISP16<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>N</mml:mi><mml:mi>N</mml:mi></mml:mrow></mml:math>interaction

Shirokov, A. M.; Negoita, Gianina Alina; Vary, James P.; Bogner, S. K.; Mazur, A. I.; Mazur, E. A.; Gogny, D.

doi:10.1103/physrevc.90.024324

Cited by 8 publications

(6 citation statements)

References 36 publications

(47 reference statements)

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“…This is a serious shortcoming of current chiral Hamiltonians as it prevents theory from making accurate predictions when extrapolating to higher masses. The problem with the reproduction of nuclear matter saturation properties has been discussed extensively in the literature [26][27][28][29][30][31][32][33][34][35][36][37][38][39], and various solutions have been proposed, ranging from shortrange correlations and Pauli blocking effects to the inclusion of many-body forces. We start from the optimization of the chiral interaction at NNLO.…”

mentioning

confidence: 99%

Accurate nuclear radii and binding energies from a chiral interaction

Ekström¹,

Jansen²,

Wendt³

et al. 2015

Phys. Rev. C

468

598

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With the goal of developing predictive ab-initio capability for light and medium-mass nuclei, twonucleon and three-nucleon forces from chiral effective field theory are optimized simultaneously to low-energy nucleon-nucleon scattering data, as well as binding energies and radii of few-nucleon systems and selected isotopes of carbon and oxygen. Coupled-cluster calculations based on this interaction, named NNLOsat, yield accurate binding energies and radii of nuclei up to 40 Ca, and are consistent with the empirical saturation point of symmetric nuclear matter. In addition, the low-lying collective J π = 3 − states in 16 O and 40 Ca are described accurately, while spectra for selected p-and sd-shell nuclei are in reasonable agreement with experiment. Introduction -Interactions from chiral effective field theory (EFT) [1][2][3][4] and modern applications of renormalization group techniques [5][6][7][8] have opened the door for a description of atomic nuclei consistent with the underlying symmetries of quantum chromodynamics, the theory of the strong interaction. Chiral nuclear forces can be constructed systematically from long-range pion physics augmented by contact interactions. Over the past decade, the renaissance of nuclear theory based on realistic nuclear forces and powerful computational methods has pushed the frontier of ab initio calculations from fewbody systems and light nuclei [6, 9, 10] to medium-mass nuclei [11][12][13][14][15][16][17][18][19].

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mentioning

confidence: 99%

Accurate nuclear radii and binding energies from a chiral interaction

Ekström¹,

Jansen²,

Wendt³

et al. 2015

Phys. Rev. C

468

598

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“…Therefore, the phase-equivalent transformation can minimize the need of three-body interactions. The "bare" JISP16 interaction has been used extensively and successfully in configuration interaction calculations of light nuclei [50,51] and in nuclear matter [52].…”

Section: A the Effective Hamiltonianmentioning

confidence: 99%

Ab initionuclear many-body perturbation calculations in the Hartree-Fock basis

Fang

Sun

et al. 2016

Phys. Rev. C

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Starting from realistic nuclear forces, the chiral N 3 LO and JISP16, we have applied many-body perturbation theory (MBPT) to the structure of closed-shell nuclei, 4 He and 16 O. The two-body N 3 LO interaction is softened by a similarity renormalization group transformation while JISP16 is adopted without renormalization. The MBPT calculations are performed within the Hartree-Fock (HF) bases. The angular momentum coupled scheme is used, which can reduce the computational task. Corrections up to the third order in energy and up to the second order in radius are evaluated.Higher-order corrections in the HF basis are small relative to the leading-order perturbative result.Using the anti-symmetrized Goldstone diagram expansions of the wave function, we directly correct the one-body density for the calculation of the radius, rather than calculate corrections to the occupation propabilities of single-particle orbits as found in other treatments. We compare our results with other methods where available and find good agreement. This supports the conclusion that our methods produce reasonably converged results with these interactions. We also compare our results with experimental data.

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“…The nucleon-nucleon interaction is fundamental to the understanding of nuclear physics as a whole. The elastic scattering of protons and neutrons, at low to medium energies, can be analyzed in terms of a partial-wave expansion, yielding amplitudes that are valuable for comparison to models [1] and also as input to more complex processes, such as proton-deuteron scattering [2] and deuteron electro-disintegration [3]. Fit results have also been used in Monte Carlo simulations and incorporated into geometry and tracking of the Geant4 simulation [4] software, a basic tool for low, medium, and high energy groups.…”

Section: Introductionmentioning

confidence: 99%

Partial-wave analysis of nucleon-nucleon elastic scattering data

2016

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Energy-dependent and single-energy fits to the existing nucleon-nucleon database have been updated to incorporate recent measurements. The fits cover a region from threshold to 3 GeV, in the laboratory kinetic energy, for proton-proton scattering, with an upper limit of 1.3 GeV for neutron-proton scattering. Experiments carried out at the COSY-WASA and COSY-ANKE facilities have had a significant impact on the partial-wave solutions. Results are discussed in terms of both partial-wave and direct reconstruction amplitudes.

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Properties of nuclear matter within the JISP16NNinteraction

Cited by 8 publications

References 36 publications

Accurate nuclear radii and binding energies from a chiral interaction

Accurate nuclear radii and binding energies from a chiral interaction

Ab initionuclear many-body perturbation calculations in the Hartree-Fock basis

Partial-wave analysis of nucleon-nucleon elastic scattering data

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