Energy staggering parameters in nuclear magnetic rotational bands

Hexadecapole interaction and the △I=4 staggering effect in rotational bands

A role of the multipole interaction in the description of the △I=4 staggering phenomenon is investigated in a model consisting of a single-j shell filled by identical nucleons. Exact diagonalization of the quadrupole-plushexadecapole Hamiltonian shows that the hexadecapole-hexadecapole interaction can produce a △I=4 periodicity in the yrast sequence. PACS numbers: 21.10.Re, 21.30.+y, 21.60.Cs

Erratum: Magnetic energy bands of carbon nanotubes

Odd-Even Staggering of Nuclear Masses: Pairing

The odd-even staggering of nuclear masses was recognized in the early days of nuclear physics. Recently, a similar e ect was discovered in other nite fermion systems, such as ultrasmall metallic grains and metal clusters. It is believed that the staggering in nuclei and grains is primarily due to pairing correlations (superconductivity), while in clusters it is caused by the Jahn-Teller e ect. ...

Calculation of the rotational bands for the 20Ne isotope

The phenomenon of clustering in light nuclei is one of the interesting topics while its study is difficult. In this article, a simple model (the two-particle model which includes a core and a cluster) is presented for the investigation of the positive and the negative parity of rotational bands of 20Ne isotope. The Deng-Fan and the Hellman potentials are considered as the core and the cluster p...

Rotational and Vibrational bands in 108 Pd

The Pd nucleus has been studied with the Mo(B, p2nγ) reaction at 43 MeV incident energy. γ−γ− t, γ−γ− charged particle coincidences and directional correlation ratios were measured using the γ spectrometer formed by four Compton suppressed HPGe detectors and a 4π charged-particle ancillary detector system. The struture of the bands was interpreted within the framework of the cranked shell model...