Results 21 to 30 of about 202,682 (289)

Neutron-Mirror Neutron oscillations in Matter

open access: yes, 2021
12 pages, 3 figures, submitted to MDPI "Symmetry ...
Kamyshkov, Yuri   +3 more
openaire   +2 more sources

Triplet pairing in neutron matter [PDF]

open access: yesNuclear Physics A, 2001
The separation method developed earlier by us [Nucl. Phys. {\bf A598} 390 (1996)] to calculate and analyze solutions of the BCS gap equation for $^1$S$_0$ pairing is extended and applied to $^3$P$_2$--$^3$F$_2$ pairing in pure neutron matter. The pairing matrix elements are written as a separable part plus a remainder that vanishes when either momentum
Khodel, V. V.   +2 more
openaire   +3 more sources

Coexistence of ferromagnetism, antiferromagnetism, and superconductivity in magnetically anisotropic (Eu,La)FeAs2

open access: yesnpj Quantum Materials, 2021
Materials with exceptional magnetism and superconductivity usually conceive emergent physical phenomena. Here, we investigate the physical properties of the (Eu,La)FeAs2 system with double magnetic sublattices.
Jia Yu   +10 more
doaj   +1 more source

Probing Mechanical and Chemical Instabilities in Neutron-Rich Matter [PDF]

open access: yes, 2001
The isospin-dependence of mechanical and chemical instabilities is investigated within a thermal and nuclear transport model using a Skyrme-type phenomenological equation of state for neutron-rich matter.
Akmal   +49 more
core   +2 more sources

Square and rhombic lattices of magnetic skyrmions in a centrosymmetric binary compound

open access: yesNature Communications, 2022
Typically, skyrmions appear in magnet systems which are non-centrosymmetric. Here, using neutron and X-ray scattering, Takagi et al show the emergence of a skyrmion phase in the centrosymmetric material EuAl4.
Rina Takagi   +15 more
doaj   +1 more source

Neutron Stars and Dark Matter

open access: yesUniverse, 2020
Neutron stars change their structure with accumulation of dark matter. We study how their mass is influenced from the environment. Close to the sun, the dark matter accretion from the neutron star does not have any effect on it.
Antonino Del Popolo   +2 more
doaj   +1 more source

Superdense neutron matter

open access: yesThe Astrophysical Journal, 1978
A relativistic theory of high-density matter is presented which takes into account the short-range interaction due to the exchange of spin-2 mesons. An equation of state is derived and used to compute neutron-star properties. The prediction of the theory for the values of maximum mass and moment of inertia for a stable neutron star are 1.75 solar ...
V. Canuto, B. Datta, G. Kalman
openaire   +1 more source

Proton and neutron superfluidity in neutron star matter [PDF]

open access: yesNuclear Physics A, 1992
Abstract The 3 P 2 neutron superfluidity and the 1 S 0 proton superfluidity in neutron star matter are investigated by solving the gap equation exactly for a realistic nucleon-nucleon potential, namely the Argonne v 14 potential. For the 3 P 2 case, our results point to a nearly isotropic pairing function, in close analogy with the rigorous ...
Cugnon, Joseph   +3 more
openaire   +1 more source

Isospin Asymmetry in Nuclei and Neutron Stars [PDF]

open access: yes, 2004
The roles of isospin asymmetry in nuclei and neutron stars are investigated using a range of potential and field-theoretical models of nucleonic matter.
A.W. Steiner   +95 more
core   +1 more source

Dark-matter admixed neutron stars [PDF]

open access: yesPhysical Review D, 2011
We study the hydrostatic equilibrium configuration of an admixture of degenerate dark matter and normal nuclear matter by using a general relativistic two-fluid formalism. We consider non- self-annihilating dark matter particles of mass ~ 1 GeV. The mass-radius relations and moments of inertia of these dark-matter admixed neutron stars are investigated
Leung, S. -C., Chu, M. -C., Lin, L. -M.
openaire   +2 more sources

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