dorsal/arxiv
View SchemaCritical point symmetries in boson-fermion systems. The case of shape transition in odd nuclei in a multi-orbit model
| Authors | C. E. Alonso, J. M. Arias, A. Vitturi |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0701016 |
| URL | https://arxiv.org/abs/nucl-th/0701016 |
| DOI | 10.1103/PhysRevLett.98.052501 |
| Journal | Phys.Rev.Lett.98:052501,2007 |
Abstract
We investigate phase transitions in boson-fermion systems. We propose an analytically solvable model (E(5/12)) to describe odd nuclei at the critical point in the transition from the spherical to $\gamma$-unstable behaviour. In the model, a boson core described within the Bohr Hamiltonian interacts with an unpaired particle assumed to be moving in the three single particle orbitals j=1/2,3/2,5/2. Energy spectra and electromagnetic transitions at the critical point compare well with the results obtained within the Interacting Boson Fermion Model, with a boson-fermion Hamiltonian that describes the same physical situation.
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"abstract": "We investigate phase transitions in boson-fermion systems. We propose an\nanalytically solvable model (E(5/12)) to describe odd nuclei at the critical\npoint in the transition from the spherical to $\\gamma$-unstable behaviour. In\nthe model, a boson core described within the Bohr Hamiltonian interacts with an\nunpaired particle assumed to be moving in the three single particle orbitals\nj=1/2,3/2,5/2. Energy spectra and electromagnetic transitions at the critical\npoint compare well with the results obtained within the Interacting Boson\nFermion Model, with a boson-fermion Hamiltonian that describes the same\nphysical situation.",
"arxiv_id": "nucl-th/0701016",
"authors": [
"C. E. Alonso",
"J. M. Arias",
"A. Vitturi"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevLett.98.052501",
"journal_ref": "Phys.Rev.Lett.98:052501,2007",
"title": "Critical point symmetries in boson-fermion systems. The case of shape transition in odd nuclei in a multi-orbit model",
"url": "https://arxiv.org/abs/nucl-th/0701016"
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