Information content of the weak-charge form factor

Reinhard, P.‐G.; Piekarewicz, J.; Nazarewicz, W.; Agrawal, B. K.; Paar, Nils; Roca-Maza, X.

doi:10.1103/physrevc.88.034325

Cited by 64 publications

(64 citation statements)

References 49 publications

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“…In general, the quality of our spectra for sd-shell nuclei is comparable to those of recent state-of-the-art calculations with chiral Hamiltonians [44,[107][108][109], while radii are much improved. [110] compared to the experimental charge density [111]. The inset compares computed low-lying negative-parity states with experiment.…”

mentioning

confidence: 99%

Accurate nuclear radii and binding energies from a chiral interaction

Ekström¹,

Jansen²,

Wendt³

et al. 2015

Phys. Rev. C

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470

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

Self Cite

470

598

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“…To this end, it may be mentioned that the correlations of neutron-skin thickness in 208 Pb nucleus with L 0 has been studied within the covariance approach for different nuclear energy density functionals [55]. These correlations exhibit some degree of model dependence.…”

Section: Resultsmentioning

confidence: 99%

Constraining the symmetry energy content of nuclear matter from nuclear masses: A covariance analysis

Mondal

Agrawal

2015

Phys. Rev. C

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Elements of nuclear symmetry energy evaluated from different energy density functionals parametrized by fitting selective bulk properties of few representative nuclei are seen to vary widely. Those obtained from experimental data on nuclear masses across the periodic table, however, show that they are better constrained. A possible direction in reconciling this paradox may be gleaned from comparison of results obtained from use of the binding energies in the fitting protocol within a microscopic model with two sets of nuclei, one a representative standard set and another where very highly asymmetric nuclei are additionally included. A covariance analysis reveals that the additional fitting protocol reduces the uncertainties in the nuclear symmetry energy coefficient, its slope parameter as well as the neutron-skin thickness in 208 Pb nucleus by ∼ 50%. The central values of these entities are also seen to be slightly reduced.

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“…This powerful technique provides a unique opportunity to measure the weak charge form factor of the nucleus-and hence its neutron radius R n -in a relatively clean and modelindependent way [36][37][38][39]. Indeed, PREX has provided for the first time model-independent evidence-at the 1.8σ levelin favor of a neutron-rich skin in 208 Pb and successfully demonstrated the feasibility of this technique for measuring neutron densities with an excellent control of systematic errors [25,26].…”

Section: A Neutron Skinsmentioning

confidence: 99%

A way forward in the study of the symmetry energy: experiment, theory, and observation

Horowitz

Brown

Kim

et al. 2014

J. Phys. G: Nucl. Part. Phys.

309

307

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The symmetry energy describes how the energy of nuclear matter rises as one goes away from equal numbers of neutrons and protons. This is very important to describe neutron rich matter in astrophysics. This article reviews our knowledge of the symmetry energy from theoretical calculations, nuclear structure measurements, heavy ion collisions, and astronomical observations. We then present a roadmap to make progress in areas of relevance to the symmetry energy that promotes collaboration between the astrophysics and the nuclear physics communities.

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Information content of the weak-charge form factor

Cited by 64 publications

References 49 publications

Accurate nuclear radii and binding energies from a chiral interaction

Accurate nuclear radii and binding energies from a chiral interaction

Constraining the symmetry energy content of nuclear matter from nuclear masses: A covariance analysis

A way forward in the study of the symmetry energy: experiment, theory, and observation

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