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Determine the neutron skin type by relativistic isobaric collisions
- Source :
- Phys.Lett.B 819 (2021) 1136453
- Publication Year :
- 2021
-
Abstract
- The effects of neutron skin on the multiplicity ($N_{\rm ch}$) and eccentricity($\epsilon_2$) in relativistic $^{96}_{44}$Ru+$^{96}_{44}$Ru and $^{96}_{40}$Zr+$^{96}_{40}$Zr collisions at $\sqrt{s_{_{\rm NN}}}=200$ GeV are investigated with the Trento model. It is found that the Ru+Ru/Zr+Zr ratios of the $N_{\rm ch}$ distributions and $\epsilon_{2}$ in mid-central collisions are exquisitely sensitive to the neutron skin type (skin vs.~halo). The state-of-the-art calculations by energy density functional theory (DFT) favor the halo-type neutron skin and can soon be confronted by experimental data. It is demonstrated that the halo-type density can serve as a good surrogate for the DFT density, and thus can be efficiently employed to probe nuclear deformities by using elliptic flow data in central collisions. We provide hereby a proof-of-principle venue to simultaneously determine the neutron skin type, thickness, and nuclear deformity.<br />Comment: 6 pages, 3 figures. Version published in PLB. Typo in Eq.3 is corrected
- Subjects :
- Nuclear Theory
Nuclear Experiment
Subjects
Details
- Database :
- arXiv
- Journal :
- Phys.Lett.B 819 (2021) 1136453
- Publication Type :
- Report
- Accession number :
- edsarx.2103.05595
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1016/j.physletb.2021.136453