Eur. Phys. J. A (2010) 46: 1-4
https://doi.org/10.1140/epja/i2010-11043-8

Letter

High-spin yrast and yrare structures in ¹¹²In

¹ China Institute of Atomic Energy, 102413, Beijing, PRC
² School of Physics and Nuclear Energy Engineering, Beihang University, 100191, Beijing, PRC
³ College of Physics and Technology, Shenzhen University, 518060, Shenzhen, PRC
⁴ School of Physics and SK laboratory of Nuclear Physics and Technology, Peking University, 100871, Beijing, PRC
⁵ School of Space Science and Physics at Weihai, Shandong University, 264209, Weihai, PRC
⁶ Department of Physics, Tsinghua University, 100084, Beijing, PRC
⁷ Department of Physics, Jilin University, 130023, Changchun, PRC

^* e-mail: chuangye.he@gmail.com

Received: 3 June 2010
Accepted: 2 September 2010
Published online: 23 September 2010

Abstract

The high-spin states of ¹¹²In have been investigated with in-beam -ray spectroscopic methods using the ¹¹⁰Pd (⁷Li, 5n)¹¹²In reaction at a beam energy of 50MeV. A level scheme with 3 band structures has been established. The backbending associated with the alignment of a pair of g _7/2/d _5/2 neutrons has been found in the negative-parity yrast band. The configuration for the positive-parity yrare band has been assigned to g _9/2 ⊗ g _7/2 for the lower-spin states, and g _9/2 ⊗ h ² _11/2(g _7/2) for the higher-spin levels.