# Neutron Drip Line in the Ca Region from Bayesian Model Averaging.

@article{Neufcourt2019NeutronDL, title={Neutron Drip Line in the Ca Region from Bayesian Model Averaging.}, author={Leo Neufcourt and Yuchen Cao and Witold Nazarewicz and E. Olsen and Frederi Viens}, journal={Physical review letters}, year={2019}, volume={122 6}, pages={ 062502 } }

The region of heavy calcium isotopes forms the frontier of experimental and theoretical nuclear structure research where the basic concepts of nuclear physics are put to stringent test. The recent discovery of the extremely neutron-rich nuclei around ^{60}Ca O. B. Tarasov et al. [Phys. Rev. Lett. 121, 022501 (2018)10.1103/PhysRevLett.121.022501] and the experimental determination of masses for ^{55-57}Ca S. Michimasa et al. [Phys. Rev. Lett. 121, 022506 (2018)10.1103/PhysRevLett.121.022506…

## 58 Citations

### Quantified limits of the nuclear landscape

- PhysicsPhysical Review C
- 2020

Background: The chart of the nuclides is limited by particle drip lines beyond which nuclear stability to proton or neutron emission is lost. Predicting the range of particle-bound isotopes poses an…

### Estimate of the location of the neutron drip line for calcium isotopes from an exact Hamiltonian with continuum pair correlations

- Physics
- 2020

The eastern region of the calcium isotope chain of the nuclei chart is, nowadays, of great activity. The experimental assessment of the limit of stability is of interest to confirm or improve…

### Neutron drip line in the deformed relativistic Hartree–Bogoliubov theory in continuum: Oxygen to Calcium

- Physics
- 2020

The location of the neutron drip line, currently known for only the lightest elements, remains a fundamental question in nuclear physics. Its description is a challenge for microscopic nuclear energy…

### Shell-model study of calcium isotopes toward their drip line

- Physics
- 2020

We report in this paper a study in terms of the nuclear shell model about the location of the calcium isotopes drip line. The starting point is considering the realistic two-body potential derived by…

### Predictions of nuclear charge radii and physical interpretations based on the naive Bayesian probability classifier

- Physics
- 2020

Background: The nuclear charge radii provide direct information for the nuclear structures. In recent years, many pioneering researches have been devoted to the nuclear charge radii based on the…

### Electroweak probes of ground state densities

- PhysicsPhysical Review C
- 2019

Elastic electron scattering has been used to paint the most accurate picture of the proton distribution in atomic nuclei. Spurred by new experimental developments, it is now possible to gain valuable…

### Global Sensitivity Analysis of Bulk Properties of an Atomic Nucleus.

- PhysicsPhysical review letters
- 2019

A global sensitivity analysis of the binding energy and the charge radius of the nucleus ^{16}O and the most important parameters for describing nuclear saturation are identified and help prioritize efforts for uncertainty reduction of theoretical predictions.

## References

SHOWING 1-10 OF 65 REFERENCES

### Bayesian approach to model-based extrapolation of nuclear observables

- Computer SciencePhysical Review C
- 2018

The mass, or binding energy, is the basis property of the atomic nucleus. It determines its stability, and reaction and decay rates. Quantifying the nuclear binding is important for understanding the…

### The limits of the nuclear landscape

- PhysicsNature
- 2012

The number of bound nuclides with between 2 and 120 protons is around 7,000, and extrapolations for drip-line positions and selected nuclear properties, including neutron separation energies relevant to astrophysical processes, are very consistent between the models used.

### Nuclear mass predictions for the crustal composition of neutron stars: A Bayesian neural network approach

- Physics, Computer Science
- 2016

A refinement based on a Bayesian Neural Network (BNN) formalism is implemented with the goal of optimizing mass residuals between theory and experiment and a significant improvement in the mass predictions of existing models is obtained.

### Unexpectedly large charge radii of neutron-rich calcium isotopes

- Physics
- 2016

Despite being a complex many-body system, the atomic nucleus exhibits simple structures for certain ‘magic’ numbers of protons and neutrons. The calcium chain in particular is both unique and…

### Evidence for a change in the nuclear mass surface with the discovery of the most neutron-rich nuclei with 17<or=Z<or=25.

- PhysicsPhysical review letters
- 2009

The enhanced cross sections of several new nuclei relative to a simple thermal evaporation framework indicates that nuclei in the region around 62Ti might be more stable than predicted by current mass models and could be an indication of a new island of inversion similar to that centered on 31Na.

### Validating neural-network refinements of nuclear mass models

- Physics
- 2018

Background: Nuclear astrophysics centers on the role of nuclear physics in the cosmos. In particular, nuclear masses at the limits of stability are critical in the development of stellar structure…

### Dawning of the N=32 Shell Closure Seen through Precision Mass Measurements of Neutron-Rich Titanium Isotopes.

- PhysicsPhysical review letters
- 2018

These measurements represent the first scientific results of TITAN using the newly commissioned multiple-reflection time-of-flight mass spectrometer, substantiated by independent measurements from TITAN's Penning trap mass Spectrometer.

### Production cross sections from 82 Se fragmentation as indications of shell effects in neutron-rich isotopes close to the drip-line

- Physics
- 2013

Production cross sections for neutron-rich nuclei from the fragmentation of a 82 Se beam at 139 MeV/u were measured. The longitudinal momentum distributions of 126 neutron-rich isotopes of elements…

### Nuclear mass predictions based on Bayesian neural network approach with pairing and shell effects

- Physics
- 2018

### Neutron and weak-charge distributions of the 48Ca nucleus

- Physics
- 2016

What is the size of the atomic nucleus? This deceivably simple question is difficult to answer. Although the electric charge distributions in atomic nuclei were measured accurately already half a…