Identification of High-Spin States in Odd-Odd <SUP>126</SUP>I

LI Rong-Jun; MA Ying-Jun; WU Xiao-Guang; ZHANG Yu-Hu; ZHU Li-Hua; WANG Shou-Yu; LI Ming-Fei; LIANG Guo-Dong; CUI Xing-Zhu; LI Xian-Feng; ZHAO Guang-Yi; LU Jing-Bin

Chinese Physics C> 2005, Vol. 29> Issue(1) : 1-4

Identification of High-Spin States in Odd-Odd ¹²⁶I

Department of Physics,Jilin University,Changchun 130023,China2 China Institute of Atomic Energy,Beijing 102413,China3 Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China4 Tandem Accelerator Center,University of Tsukuba,Ibaraki 305,Japan

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Abstract：
Excited states in odd–odd ¹²⁶I have been studied via the heavy–ion induced fusion–evaporation reaction ¹²²Sn(¹¹B,5n2p) at beam energies of 55 and 60 MeV with beams provided by the HI–13 tandem accelerator of CIAE in Beijing.A level scheme consisting of 20 new γ transitions assigned to ¹²⁶I is established.The assignment of the established level scheme to ¹²⁶I is based on the observed coincidences between the newly identified γ–transitions and two previously known cascade γ transitions feeding the ground state of ¹²⁶I, and supported by a cross measurement using the ¹²⁴Sn(^7lI,5n) reaction performed at UTTAC,Japan.The observed structures of ¹²⁶I at high spins show typical properties of collective rotation in a deformed nucleus. their possible configurations are discussed briefly on the basis of knowledge from the neighboring nuclei.

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Balabanski D L, Rainovski G, Falconi G et al . Phys. Rev. , 1997,C56: 1629-16322 Kaur H, Singh J, Sharma A et al . Phys. Rev. , 1997, C55: 512-5153 Kaur H, Singh J, Sharma A et al. Phys. Rev. , 1997, C55: 2234-22434 Balabanski D L, Rainovski G, Blasi N et al. Heavy Ion Phys. , 1997,6:275-2795. Liang Y, Fossan D B, Hughes D B et al. Phys. Rev. , 1992, C45:1041-10576 St arosta K, Koike T, Chiara C J et al. Nucl. Phys. , 2001, A682:375c-386c7 Sharma H, Sethi B, Banerjee P et al. Phys. Rev. , 2000, C63:014313 1-78 ZHANG Y-H, MA Y-J, Sasaki Y et al. HEP NP, 2002, 26: 104-107( in Chinese)( 张玉虎, 马英君, Sasaki Y 等. 高能物理与核物理, 2002, 26:104-107)9 Burde J, Richter V, Labaton I. Nucl. Phys. , 1983, A402: 205-21910 Wiedenhover I, Neuneyer U, Kerskens C et al. Z.Phys. , 1993, A347:71-74

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LI Rong-Jun, MA Ying-Jun, WU Xiao-Guang, ZHANG Yu-Hu, ZHU Li-Hua, WANG Shou-Yu, LI Ming-Fei, LIANG Guo-Dong, CUI Xing-Zhu, LI Xian-Feng, ZHAO Guang-Yi, LU Jing-Bin, Identification of High-Spin States in Odd-Odd ¹²⁶I[J]. Chinese Physics C, 2005, 29(1): 1-4.

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Received: 2004-08-19
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Identification of High-Spin States in Odd-Odd ¹²⁶I

Corresponding author: LI Rong-Jun,

Department of Physics,Jilin University,Changchun 130023,China2 China Institute of Atomic Energy,Beijing 102413,China3 Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China4 Tandem Accelerator Center,University of Tsukuba,Ibaraki 305,Japan

Received Date: 2004-08-19
Accepted Date: 1900-01-01
Available Online: 2005-01-05

Abstract: Excited states in odd–odd ¹²⁶I have been studied via the heavy–ion induced fusion–evaporation reaction ¹²²Sn(¹¹B,5n2p) at beam energies of 55 and 60 MeV with beams provided by the HI–13 tandem accelerator of CIAE in Beijing.A level scheme consisting of 20 new γ transitions assigned to ¹²⁶I is established.The assignment of the established level scheme to ¹²⁶I is based on the observed coincidences between the newly identified γ–transitions and two previously known cascade γ transitions feeding the ground state of ¹²⁶I, and supported by a cross measurement using the ¹²⁴Sn(^7lI,5n) reaction performed at UTTAC,Japan.The observed structures of ¹²⁶I at high spins show typical properties of collective rotation in a deformed nucleus. their possible configurations are discussed briefly on the basis of knowledge from the neighboring nuclei.