Tetraneutron in the Chiral Quark Model

Abstract

The tetraneutron state is studied in the framework of the chiral quark model with tetrahedron configuration. The universal attraction property of σ-meson exchange leads to a strong attraction in the effective potential of the system. It is possible to form a bound state. For comparison, the naive quark model is also employed to carry out the calculation. A weak attraction, which is too weak to bind the system, is obtained.

Magnetic moments of odd-Aaluminum isotopes in covariant density functional theory

“…However, the application for nuclear magnetic moments is still not satisfactory and the theoretical description of nuclear magnetic moments has been a long-standing problem [3,6,7]. The covariant density functional theory (CDFT), taking Lorentz symmetry into account in a self-consistent way, has received wide attention due to its successful description of many nuclear properties in a large number of stable and exotic nuclei [17][18][19][20][21][22][23] and the successful application of its predictions to r-process simulations [24][25][26]. It includes naturally the nuclear spin-orbit potential in a covariant way.…”