Systematic of 21 +, 02 +, 22 +, 41 + and 31 − states in even-even nuclei

Antony, M. S.; Britz, J.; Bueb, J. B.

doi:10.1007/bf02819306

Cited by 6 publications

(2 citation statements)

References 9 publications

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“…There are several systematic studies concerning spectroscopic properties of even-even nuclei [3][4][5][6][7][8]. In this article we will investigate low-lying 2 + 1 states in semimagic isotopic and isotonic chains, by using a spherically symmetric Hamiltonian with two levels, one for protons and one for neutrons.…”

mentioning

confidence: 99%

Systematics of21+states in semimagic nuclei

Delion

Zamfir

2010

Phys. Rev. C

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We propose a simple systematics of low-lying 2 + 1 energy levels and electromagnetic transitions in semimagic isotopic chains Z = 28, 50, 82 and isotonic chains N = 28, 50, 82, 126. To this purpose we use a two-level pairing plus quadrupole Hamiltonian, within the spherical quasiparticle random phase approximation (QRPA). We derive a simple relation connecting the 2 + 1 energy with the pairing gap and quadrupole-quadupole (QQ) interaction strength. It turns out that the systematics of energy levels and B(E2) values predicted by this simple model is fulfilled with a reasonable accuracy by all available experimental data. This systematics suggests that not only active nucleons but also those filling closed shells play an important role.

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mentioning

confidence: 99%

Systematics of21+states in semimagic nuclei

Delion

Zamfir

2010

Phys. Rev. C

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“…There are several systematic studies concerning spectroscopic properties of even-even nuclei [3][4][5][6][7][8]. In this paper we will investigate low lying 2 + 1 states in semi-magic isotopic and isotonic chains, by using a spherically symmetric Hamiltonian with two levels, one for protons and one for neutrons.…”

mentioning

confidence: 99%

Systematics of 2+ states in semi-magic nuclei

Delion,

Zamfir

2010

Preprint

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We propose a simple systematics of low lying 2 + 1 energy levels and electromagnetic transitions in semi-magic isotopic chains Z = 28, 50, 82 and isotonic chains N = 28, 50, 82, 126. To this purpose we use a two-level pairing plus quadrupole Hamiltonian, within the spherical Quasiparticle Random Phase Approximation (QRPA). We derive a simple relation connecting the 2 + 1 energy with the pairing gap and quadrupole-quadupole (QQ) interaction strength. It turns out that the systematics of energy levels and B(E2) values predicted by this simple model is fulfilled with a reasonable accuracy by all available experimental data. Both systematics suggest that not only active nucleons but also those filling closed shells play an important role.

show abstract