Zobrazeno 1 - 10
of 111
pro vyhledávání: '"Vidana, Isaac"'
The equation of state of asymmetric nuclear matter as well as the neutron and proton effective masses and their partial-wave and spin-isospin decomposition are analyzed within the Brueckner--Hartree--Fock approach. Theoretical uncertainties for all t
Externí odkaz:
http://arxiv.org/abs/2404.03583
We study the properties of hot and dense neutron star matter under the presence of strong magnetic fields using two Skyrme interactions, namely the LNS and the BSk21 ones. Asking for $\beta$--stability and charge neutrality, we construct the equation
Externí odkaz:
http://arxiv.org/abs/2304.08776
We study the role of chiral nuclear forces on the propagation of neutrinos in hot neutron matter. In particular, we analyze the convergence of the dynamical structure factor and the neutrino mean free path with the order of the power counting of the
Externí odkaz:
http://arxiv.org/abs/2206.10190
Autor:
Vidana, Isaac
We employ a feed-forward artificial neural network to extrapolate at large model spaces the results of {\it ab-initio} hypernuclear No-Core Shell Model calculations for the $\Lambda$ separation energy $B_\Lambda$ of the lightest hypernuclei, $^3_\Lam
Externí odkaz:
http://arxiv.org/abs/2203.11792
Autor:
Shternin, Peter, Vidaña, Isaac
Publikováno v:
Universe 7(6), 203 (2021)
We consider transport properties of the hypernuclear matter in neutron star cores. In particular, we calculate the thermal conductivity, the shear viscosity, and the momentum transfer rates for np$\Sigma^{-}\Lambda e\mu$ composition of dense matter i
Externí odkaz:
http://arxiv.org/abs/2106.08474
Autor:
Vidana, Isaac
We review the properties of neutron matter in the low-density regime. In particular, we revise its ground state energy and the superfluid neutron pairing gap, and analyze their evolution from the weak to the strong coupling regime. The calculations o
Externí odkaz:
http://arxiv.org/abs/2101.11903
Autor:
Vidana, Isaac
Publikováno v:
Phys. Rev. C 103, 052801 (2021)
We study the properties of a spin-down neutron impurity immersed in a low-density free Fermi gas of spin-up neutrons. In particular, we analyze its energy ($E_\downarrow$), effective mass ($m^*_\downarrow$) and quasiparticle residue ($Z_\downarrow$).
Externí odkaz:
http://arxiv.org/abs/2101.02941
Study of ($p,n$)IAS and ($^3$He,$t$)IAS charge-exchange reactions with the $G$-matrix folding method
Publikováno v:
Phys. Rev. C 103, 024601 (2021)
Differential cross sections of ($p,n$) and ($^3$He,$t$) charge-exchange reactions leading to the excitation of the isobaric analog state (IAS) of the target nucleus are calculated with the distorted wave Born approximation. The $G$-matrix double-fold
Externí odkaz:
http://arxiv.org/abs/2010.16343
Autor:
Polls, Artur, Vidana, Isaac
Publikováno v:
Physical Review C 102, 054004 (2020)
We analyze the spinodal instabilities of spin polarized asymmetric nuclear matter at zero temperature for several configurations of the neutron and proton spins. The calculations are performed with the Brueckner--Hartree--Fock (BHF) approach using th
Externí odkaz:
http://arxiv.org/abs/2007.06900
Charmed nuclei are investigated utilizing $\Lambda_c N$ and $\Sigma_c N$ interactions that have been extrapolated from lattice QCD simulations at unphysical masses of $m_\pi = 410$--$570$ MeV to the physical point using chiral effective field theory
Externí odkaz:
http://arxiv.org/abs/2003.07768