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张玉虎
主要从事重离子实验核物理研究，研究方向为低能核反应、奇异核结构和高自旋态核结构实验研究
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- 姓名：张玉虎
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学术头衔：
博士生导师， 国家杰出青年科学基金获得者
- 职称：-
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学科领域：
原子核物理学
- 研究兴趣：主要从事重离子实验核物理研究，研究方向为低能核反应、奇异核结构和高自旋态核结构实验研究
张玉虎, 男，1962年2月生，博士。现任中国科学院近代物理研究所研究员，博士生导师。《高能物理与核物理》编委，《中国物理快报》特约评审。 1982年获复旦大学大学核物理专业理学学士学位，1985年获中国科学院（近代物理研究所）核物理专业理学硕士学位。1985年起在中国科学院近代物理研究所从事实验核物理研究，1987年由中国科学院选送赴法国学习，1990年获法国CAEN (Universite de CAEN)大学核物理与粒子物理博士学位。此后在法国国家加重粒子大加速器国家实验室（GANIL）、日本理化学研究所（RIKEN）、中国科学院近代物理研究所从事博士后研究工作。1997年起任中国科学院近代物理研究所研究员。
主要从事重离子实验核物理研究，研究方向为低能核反应、奇异核结构和高自旋态核结构实验研究。近年来在变形双奇核高自旋转动带结构特征、旋称反转方面进行了比较深入和系统的研究，并取得多项科研成果。参加了“973”、科技部、国家自然科学基金重点项目等多项科研任务。负责和完成了国家自然科学基金委和中科院多项科研课题，并在国内外核心刊物上撰写和发表了30余篇研究论文，论文得到了过国内外同行的多次引用。获2000年度国家杰出青年科学基金资助，2002年获国务院政府特殊津贴，2004年获甘肃省科技进步一等奖一项，2005年入选中科院“百人计划”。
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973
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成果数
20
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2006-04-10
【期刊论文】Shape co-existence and structural evolution of the yrast band in 157Yb
张玉虎， Y. Zheng， a， X.H. Zhou， Y.H. Zhang， Y.X. Guo， X.G. Lei， Z. Liu， J.J. He， M.L. Liu， W.J. Luo， S.X. Wen， L.H. Zhu， and C.X. Yang
Eur. Phys. J. A 14, 133-136 (2002)，-0001，（）：
-1年11月30日
The high-spin states of 157Yb have been studied via the 144Sm(16O, 3n) reaction at 16O energy of 90 MeV using techniques of in-beam γ-ray spectroscopy. Measurement of γ-γ-t coincidences was performed with 11 BGO (AC) HPGe detectors. Based on the measured results of γ-γ coincidences, γ-ray anisotropies and DCO ratios, the level scheme for 157Yb was established. The shape co-existence and structural evolution of the νi13/2 band with increasing angular momentum in 157Yb have been discussed. The systematics of the νi13/2 bands in the N=87 odd-A isotones have been compared.
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2006-04-10
【期刊论文】Observation of the πh11/2⊗νi13/2 band in odd-odd 170Re
张玉虎， H. L. Wang， ， Y. H. Zhang， X. H. Zhou， M. Moyo Ndontchueng， Y. X. Guo， X. G. Lei， M. L. Liu， L. Peng， C. Y. Xie， L. T. Song， H. P. Yu， Y. Zheng， W. T. Guo， S. X. Wen， L. H. Zhu， X. G. Wu， and F. R. Xu
PHYSICAL REVIEW C 70, 064306 (2004)，-0001，（）：
-1年11月30日
High-spin states in doubly odd 170Re have been populated via the 142Nd(32S, p3nγ) reaction at beam energies of 155 and 166 MeV. K X-γ and γ-γ coincidences have been measured using a detector array consisting of 12 high-purity germanium detectors with BGO suppressors. A rotational band is identified and assigned to 170Re for the first time. This band is proposed to be built on the πh11/2⊗νi13/2 two-quasiparticle configuration by comparing the band properties with known bands in neighboring nuclei and the cranked-shell model calculations.
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2006-04-10
【期刊论文】Rotational bands and signature inversion in odd-odd 172Re
张玉虎， Y. H. Zhang， ， M. Oshima， Y. Toh， X. H. Zhou， M. Koizumi， A. Osa， A. Kimura， Y. Hatsukawa， T. Morikawa， M. Nakamura， . M. Sugawara， H. Kusakari， T. Komatsubara， K. Furuno， H. L. Wang， P. Luo， C. S. Wu， and F. R. Xu
PHYSICAL REVIEW C 68, 054313 (2003)，-0001，（）：
-1年11月30日
High-spin states in the odd-odd 172Re have been investigated via the 149Sm(27Al, 4nγ)172Re reaction through excitation functions, x-γ and γ-γ coincidence measurements. A level scheme consisting of three rotational bands has been identified for the first time extending the high-spin studies of A～160 odd-odd nuclei to the currently lightest rhenium isotope. The three bands have been assigned to be built on the πh11/2⊗νi13/2, πh9/2⊗νi13/2, and p1/2−[541]⊗ν1/2−[521] configurations according to their rotational properties in quasiparticle alignments, signature splitting, in-band B(M1)/B(E2) ratios, level spacing systematics, band crossing frequencies, as well as the existing knowledge in neighboring nuclei. Low-spin signature inversion has been confirmed in the first two bands due to the observation of signature crossing at high-spin states. The general features of inversion phenomenon in the semidecoupled bands are presented and discussed with reference to theoretical calculations of two quasiparticle plus rotor model including p-n interactions.
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2006-04-10
【期刊论文】Observation of High-j Two-Quasiparticle Bands in Odd-Odd 174Re
张玉虎， ZHANG Yu-Hu**， GUO Song， ， ZHOU Xiao-Hong， MA Long， Oshima M.， Toh Y.， koizumi M.， Osa A.， Kimura A.， Hatsukawa Y.， Sugawara M.， Kusakari H.
，-0001，（）：
-1年11月30日
High spin states in 174Re have been investigated via the 152Sm (27Al, 5nγ) 174Re reaction. Gamma-ray excitation functions, x-γ and γ-γ coincidences have been measured. Two rotational bands built on the πh9=2⊗νi13=2 and πh11=2⊗νi13=2 con gurations have been identi ed and extended up to high-spin states. The relative spin and parity of the band levels have been unambiguously xed due to observations of several inter-band transitions. Both the bands show the low-spin signature inversion, which is consistent with systematic expectations for the high-j two-quasiparticle bands in the A=170 mass region.
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2006-04-10
【期刊论文】Search for decoupled bands in Odd-Odd 174Re
张玉虎， Y.H. Zhang， S.Q. Zhang， W.X. Huang， X.H. Zhou， X.C. Feng， X. Xu， X.G. Lei， Y.X. Guo， S.F. Zhu， J.J. He， Z. Liu， S.J. Wang， Y.X. Luo
Eur. Phys. J. A 7, 19-22 (2000)，-0001，（）：
-1年11月30日
An effort has been made to search for the decoupled bands in odd-odd 174Re via the 159Tb(20Ne, 5nγ)174Re reaction through excitation functions, K x-γ and γ-γ coincidence measurements. The doubly decoupled band and the semidecoupled one have been found in this work. Their quasiparticle conØgurations are proposed to be π1=2-[541]⊗ν1=2-[521] and π1=2-[541]⊗νi13=2, respectively, according to the characteristics of band structures in this mass region. Another band with strongly coupled character is also reported.
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2006-04-10
【期刊论文】Stability of the N=50 shell gap in the neutron-rich Rb, Br, Se, and Ge isotones
张玉虎， Y. H. Zhang， ， Zs. Podoly
PHYSICAL REVIEW C 70, 024301 (2004)，-0001，（）：
-1年11月30日
The low- and medium-spin states of the N=50 neutron-rich, 37 87Rb, 35 85Br, 34 84Se and 32 82Ge isotones have been populated in deep-inelastic processes produced by the interaction of 460 MeV 82Se ions with a 192Os target. The subsequent g decay has been investigated at the Laboratori Nazionali di Legnaro using the GASP g-ray detector array. The comparison of the experimentally observed excited states with shell-model calculations performed with and without neutron degrees of freedom has allowed the investigation of the role of the neutron-core breaking excitations and therefore of the N=50 shell gap. The inclusion of neutron configurations in the shell-model calculations results in an improved agreement between the experimental and calculated level energies at medium and high spin. These results highlight the considerable contribution of neutron-core particle-hole excitations across the N=50 shell gap to the level configurations. The overall agreement of the measured excited states with the shell-model predictions is indicative of the persistence of the N=50 shell gap down to Z=32.
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2006-04-10
【期刊论文】High-spin states in odd-odd 170Ta
张玉虎， Y. H. Zhang， S. Q. Zhang， Q. Z. Zhao， S. F. Zhu， H. S. Xu， X. H. Zhou， Y. X. Guo， X. G. Lei， J. Lu， W. X. Huang， Q. B. Gou， H. J. Jin， Z. Liu， Y. X. Luo， X. F. Sun， and Y. T. Zhu X. G. Wu， S. X. Wen， and C. X. Yang
PHYSICAL REVIEW C, VOLUME 60, 044311，-0001，（）：
-1年11月30日
High-spin states in 170Ta have been studied via 159Tb(16O, 5nγ)170Ta reaction through excitation functions, K x-γ, and γ-γ-t coincidence measurements. Three rotational bands have been identified which consist of two strongly coupled bands and a semidecoupled one. The quasiparticle configurations of these bands and the interpretation of experimental results are discussed based on the existing knowledge of neighboring odd-mass and odd-odd nuclei and in the framework of the cranked-shell model. Low-spin signature inversion in the π9/2-[514]⊗ν5/2+[642] and π1/2-[541]⊗ν5/2+[642] bands are discussed. A delay reduction of the band-crossing frequency is observed in the π1/2-[541]⊗ν5/2+[642] (π5/2+[402]⊗ν5/2-[642]) band. This configuration-dependent crossing frequency is discussed in comparison with the AB crossing frequencies in the related bands of neighboring odd-Z isotopes.
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2006-04-10
【期刊论文】Low-spin signature inversion in the πh9/2⊗νi13/2 oblate band of 190Tl
张玉虎， C. Y. Xie， ， X. H. Zhou， ∗， Y. H. Zhang， Y. X. Guo， X. G. Lei， Y. Zheng， M. L. Liu， L. T. Song， H. L. Wang， W. T. Guo， H. P. Yu， L. H. Zhu， X. G. Wu， and F. R. Xu
PHYSICAL REVIEW C 72, 044302 (2005)，-0001，（）：
-1年11月30日
High-spin states in 190Tl have been studied experimentally by using the 160Gd(35Cl,5n) fusion-evaporation reaction at beam energies of 167 and 175 MeV. A rotational band built on the πh9/2⊗νi13/2 configuration with oblate deformation has been established for 190Tl. Spin values are assigned by adopting the results from α-γ decay work for 194Bi found in the literature.With the configuration and spin-parity assignments, the low-spin signature inversion has been revealed for the πh9/2⊗νi13/2 oblate band in 190Tl. It is the first experimental observation of low-spin signature inversion for a band associated with the oblate πh9/2⊗νi13/2 configuration. The low-spin signature inversion for the oblate πh9/2⊗νi13/2 band can be interpreted by the two-quasiparticle-plus-rotor model including a J-dependent p-n residual interaction.
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2006-04-10
【期刊论文】Signature inversion phenomena in odd-odd 182Au
张玉虎， Y.H. Zhang， a， F.R. Xu， J.J. He， Z. Liu， X.H. Zhou， Z.G. Gan， T. Hayakawa， M. Oshima， T. Toh， T. Shizuma， J. Katakura， Y. Hatsukawa， M. Matsuda， H. Kusakari， M. Sugawara， K. Furuno， T. Komatsubara， T. Une， S.X. Wen， and Z.M. Wang
Eur. Phys. J. A 14, 271-274 (2002)，-0001，（）：
-1年11月30日
High-spin states in the odd-odd 182Au nucleus have been investigated using the 152Sm (35Cl, 5nγ)182Au reaction through X-γ and γ-γ-t coincidence measurements. Rotational bands based on the πh9/2⊗νi13/2 and πi13/2⊗νi13/2 configurations have been identified. It is found that the two bands show characteristics of low-spin signature inversion. The observed signature inversion can be well reproduced by pairing-deformation self-consistent cranking Woods-Saxon calculations.
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2006-04-10
【期刊论文】New yrast excited states of the N=84 nucleus 142Ce observed in deep inelastic reactions
张玉虎， Z. Liu， a， Y.H. Zhang， X.H. Zhou， M.L. Liu， W.J. Luo， Q.Y. Pan， Z.G. Gan， T. Hayakawa， M. Oshima， Y. Toh， T. Shizima， Y. Hatsukawa， A. Osa， T. Ishii， and M. Sugawara
Eur. Phys. J. A 13, 277-280 (2002)，-0001，（）：
-1年11月30日
Excited states of 142Ce, populated in deep inelastic reactions of 82Se projectiles bombarding 139La target, have been studied up to medium spins using in-beam γ spectroscopy techniques. Three new levels have been identified at 2625, 2995, 3834 keV, and assigned as 8+, 9(−) and 11(−), respectively. These new yrast states follow closely the level systematics of the even mass N=84 isotones. Their strctures have been discussed with the help of empirical shell model calculations.
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