Deviations from the center-of-gravity theorem, the monopole Boson-Fermion interaction and the nuclear supersymmetry

Vervier, J.

doi:10.1016/0370-2693(84)90403-9

Cited by 6 publications

(1 citation statement)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In odd-mass nuclei, collective excitations compete with singleparticle excitations already at low energies. The well known particle-rotor, particle-vibrator, and boson-fermion models couple the odd fermion to the collective (boson) degrees of freedom [10][11][12][13][14][15][16][17][18][19][20][21][22]. While these models successfully describe various aspects of odd-mass nuclei, it is difficult to systematically improve them, or to give theoretical uncertainties for the computed results.…”

Section: Introductionmentioning

confidence: 99%

Effective field theory for vibrations in odd-mass nuclei

Pérez

Papenbrock

2016

Phys. Rev. C

View full text Add to dashboard Cite

Heavy even-even nuclei exhibit low-energy collective excitations that are separated in scale from the microscopic (fermion) degrees of freedom. This separation of scale allows us to approach nuclear vibrations within an effective field theory (EFT). In odd-mass nuclei collective and single-particle properties compete at low energies, and this makes their description more challenging. In this article we describe spherical odd-mass nuclei with ground-state spin I = 1 /2 by means of an EFT that couples a fermion to the collective degrees of freedom of an even-even core. The EFT relates observables such as energy levels, electric quadrupole transition strengths, and magnetic dipole moments of the odd-mass nucleus to those of its even-even neighbor, and allows us to quantify theoretical uncertainties. For isotopes of rhodium and silver the theoretical description is consistent with data within experimental and theoretical uncertainties. Several testable predictions are made.

show abstract