Trends of neutron skins and radii of mirror nuclei from first principles

Novario, S. J.; Lonardoni, Diego; Gandolfi, Stefano; Hagen, G.

doi:10.48550/arxiv.2111.12775

Cited by 7 publications

(14 citation statements)

References 87 publications

(119 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Variational Monte Carlo calculations [47] based on AV18 [48] for ∆B in 10 Be-10 C would predict an effective s 0 of about −3 MeV fm 3 when using again the method proposed in [46]. Thus, they give a similar value to the one we have just discussed [44]. Regarding ∆R ch in 48 Ca- 48 Ni, the prediction in Ref.…”

supporting

confidence: 53%

“…Regarding ∆R ch in 48 Ca- 48 Ni, the prediction in Ref. [44] is of 0.238±0.038 fm for CSB only CIB only SAMi FIG. 2.…”

mentioning

confidence: 83%

“…[11], SAMi-ISB, predicts ∆B = 68.72 MeV, with an effect due to ISB of 7.88 MeV. Since ∆B is only due to nuclear ISB when Coulomb is neglected, it is evident that the latter EDF results are not in agreement with ab initio calculations in [44]. In more detail, by following the strategy proposed in [46], we have determined an effective s 0 value of −2 MeV fm 3 associated with the ab initio results for ∆B in 48 Ca- 48 Ni given in [44].…”

mentioning

confidence: 91%

“…In Table I of Ref. [44], ab initio Coupled Cluster calculations based on the ∆N 2 LO GO (394) interaction are shown for ∆R ch and binding energy difference (∆B) in 48 Ca- 48 Ni. The reported value for ∆B is 66.29±0.72 MeV including all effects and 0.72±0.01 MeV by neglecting Coulomb effects.…”

mentioning

confidence: 99%

See 3 more Smart Citations

Isospin symmetry breaking in the charge radius difference of mirror nuclei

Naito¹,

Roca-Maza²,

Liang³

et al. 2022

Preprint

View full text Add to dashboard Cite

Isospin symmetry breaking (ISB) effects in the charge radius difference ∆R ch of mirror nuclei are studied using the test example of 48 Ca and 48 Ni. This choice allows for a transparent study of ISB contributions since paring and deformation effects, commonly required for the study of mirror nuclei, can be neglected in this specific pair. The connection of ∆R ch with the nuclear Equation of State and the effect of ISB on such a relation are discussed according to an Energy Density Functional approach. We find that nuclear ISB effects may shift the estimated value for the symmetry energy slope parameter L by more than 10 MeV while Coulomb corrections can be neglected. ISB effects on the ground-state energy and charge radii in mirror nuclei have been recently predicted by ab initio calculations to be relatively small, pointing to a negligible effect for the extraction of information on the nuclear EoS. These contrasting results call for a dedicated theoretical effort to solve this overarching problem that impacts not only the neutron skin thickness or the difference in mass and charge radii of mirror nuclei but also other observables such as the Isobaric Analog State energy.

show abstract

supporting

confidence: 53%

“…Regarding ∆R ch in 48 Ca- 48 Ni, the prediction in Ref. [44] is of 0.238±0.038 fm for CSB only CIB only SAMi FIG. 2.…”

mentioning

confidence: 83%

mentioning

confidence: 91%

mentioning

confidence: 99%

See 2 more Smart Citations

Isospin symmetry breaking in the charge radius difference of mirror nuclei

Naito¹,

Roca-Maza²,

Liang³

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…Experimentally, proton rms radius can be probed to a very high accuracy with electromagnetic interaction [13]. However, it is considerably difficult to perform a measurement of the neutron (weak charge) density distributions to precision and details comparable with that of protons [14,15].…”

Section: Introductionmentioning

confidence: 99%

Effects of neutron-skin thickness on direct hard photon emission from reactions induced by the neutron-rich projectile $^{50}$Ca

Wang,

Ma,

Fang

et al. 2022

Preprint

View full text Add to dashboard Cite

Direct hard photon emissions from incoherent proton-neutron bremsstrahlung in the collisions of neutron-rich projectile 50 Ca with 12 C and 40 Ca targets are simulated in the framework of IQMD model, respectively. By adjusting the diffuseness parameter of neutron density in the droplet model to obtain different neutron skin thickness for 50 Ca, the effects of neutron skin thickness on direct hard photon emission are investigated via several probes. The results show that more direct hard photons are produced with the increasing of the neutron skin thickness. Meanwhile, we find that yield ratio Rcp(σγ) and the rapidity dependence of multiplicity and multiplicity ratio Rcp(Nγ) for direct hard photons are apparently sensitive to neutron skin thickness. Furthermore, the direct hard photon differential and relative flows between central and peripheral collision are presented. We find that the differential flow is slightly more sensitive to neutron skin thickness than the relative flow. It is suggested that direct hard photon emission may be used as an experimental observable to extract the information of neutron skin thickness.

show abstract