Proton Orbital [541]1/2 and Backbending in 178W

• 来源期刊: 理论物理通讯（英文版）
• 年，卷（期）: 2008,（9）
• 页码范围: 715-718
• 页数: 4页
• 语种: 英文

摘要

The microscopic mechanism of nine experimentally observed bands in 178W is investigated using the particle-number conserving method of the cranked shell model with monopole and quadrupole paring interactions.The experimental results,including the moments of inertia and angular momentum alignments of nine bands in 178W,are reproduced well by the particle-number conserving calculations,in which no free parameter is involved.Calculations demonstrate that occurrence of sharp backbending comes mainly from the contribution of high-j intruder orbitals vi13/2 or πh11/2 and their interference effect with orbitals near the Fermi surface.The w variation of the occupation probability of each cranked orbital and the contribution to moment of inertia from each cranked orbital are analyzed.