Deformed Odd-Odd Nuclei: Matrix Elements for the Residual p-n Interaction and Patterns of Alternating Perturbations in Level Spacings

Hoff, R. W.; Kvasil, J.; Sood, P. C.; Sheline, Raymond K.

doi:10.1007/978-1-4615-3684-0_27

Cited by 4 publications

(4 citation statements)

References 22 publications

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“…A detailed discussion on the residual interactions, GM splittings and Newby shifts for level structures in odd-odd-deformed nuclei is presented in [12,16,26]. As mentioned previously, this simple phenomenological model [12,13] was extensively used earlier to study the nuclear structure of several odd-odd nuclei in the Z = 93-97 region [9][10][11][12] and more recently for some Z 99 odd-odd nuclei [14,15].…”

Section: Outline Of Formalism and Proceduresmentioning

confidence: 99%

“…This model had been widely applied [9][10][11][12] to discuss the structures in several odd-odd isotopes of Am (Z = 93), Np (Z = 95) and Bk (Z = 97). More recently, we have extended its somewhat simpler version [12,13] to explore the structures in the Z 99 region [14,15]. This approach makes use of the comprehensive surveys [12,13,16] of the experimental and theoretical values of the splitting energies E GM for the Gallagher-Moszkowski (GM) doublets [17] and also of the Newby [18] odd-even shifts E N for the K = 0 bands.…”

Section: Introductionmentioning

confidence: 99%

“…More recently, we have extended its somewhat simpler version [12,13] to explore the structures in the Z 99 region [14,15]. This approach makes use of the comprehensive surveys [12,13,16] of the experimental and theoretical values of the splitting energies E GM for the Gallagher-Moszkowski (GM) doublets [17] and also of the Newby [18] odd-even shifts E N for the K = 0 bands. Since the experimental information on these quantities for the A > 250 region is scarce, we use the empirical rule of Sood and Ray [19] to deduce the sign of the Newby shift which, as shown later, plays a vital role in deducing the ground-state spin parity I π gs for the 256 Md parent state and also for the level ordering in the expected three low-lying K = 0 bands in 252 Es.…”

Section: Introductionmentioning

confidence: 99%

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Characterization of two-quasiparticle levels in the odd–odd nucleus²⁵²Es

Sainath¹,

Venkataramaniah²,

Sood³

2008

J. Phys. G: Nucl. Part. Phys.

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Bandhead energies of the low-lying two-quasiparticle (2qp) structures in the doubly odd nucleus 252Es are evaluated using a phenomenological rotor-particle model with the inclusion of residual interaction contributions. The results are compared with the experimental data from 256Md α-decay to deduce configuration assignments for the observed 252Es levels and to place the γ's seen in the α–γ coincidence experiments in this level scheme. The 252Es ground state is characterized as the 4+[7/2+[633]p ⊗ 1/2+[620]n] bandhead, consistent with all the known experimental data.

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Section: Outline Of Formalism and Proceduresmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Characterization of two-quasiparticle levels in the odd–odd nucleus²⁵²Es

Sainath¹,

Venkataramaniah²,

Sood³

2008

J. Phys. G: Nucl. Part. Phys.

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“…The rotational degrees of freedom of odd-odd nuclei are usually treated with the rotor-plus-two-quasiparticle approach (see e.g. [8,[11][12][13][14]23]). …”

Section: Introductionmentioning

confidence: 99%

Microscopic description of vibrational degrees of freedom in odd-odd isotopes of Ho

Kvasil

Sheline

Nesterenko

et al. 1992

Z. Physik A - Hadrons and Nuclei

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The microscopic approach for the description of low-lying intrinsic states in deformed odd-odd nuclei is formulated as a generalization of the quasiparticle-phonon model. In comparison with other models used for deformed odd-odd nuclei, the approach proposed in this paper involves vibrational degrees of freedom of the doubly-even core, their coupling to quasiparticle degrees of freedom and the n-p interaction between the odd particles. Our model treats all of these modes of nuclear motion on the same microscopic footing. This proposed model is applied to calculate the energies and phononquasiparticle structure of the intrinsic states of the oddodd Ho isotopes with A = 160, 162, 164, 166 and 168. It is found that the low-lying intrinsic states in the odd-odd Ho isotopes have only small vibrational components. In general the vibrational states are fragmented over many intrinsic states.

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Exotic Nuclear Spectroscopy

1990

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Deformed Odd-Odd Nuclei: Matrix Elements for the Residual p-n Interaction and Patterns of Alternating Perturbations in Level Spacings

Cited by 4 publications

References 22 publications

Characterization of two-quasiparticle levels in the odd–odd nucleus²⁵²Es

Characterization of two-quasiparticle levels in the odd–odd nucleus²⁵²Es

Microscopic description of vibrational degrees of freedom in odd-odd isotopes of Ho

Exotic Nuclear Spectroscopy

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Deformed Odd-Odd Nuclei: Matrix Elements for the Residual p-n Interaction and Patterns of Alternating Perturbations in Level Spacings

Cited by 4 publications

References 22 publications

Characterization of two-quasiparticle levels in the odd–odd nucleus252Es

Characterization of two-quasiparticle levels in the odd–odd nucleus252Es

Microscopic description of vibrational degrees of freedom in odd-odd isotopes of Ho

Exotic Nuclear Spectroscopy

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Characterization of two-quasiparticle levels in the odd–odd nucleus²⁵²Es

Characterization of two-quasiparticle levels in the odd–odd nucleus²⁵²Es