Nuclear structure of Te-127 studied with (n, gamma) and ((d)over-right-arrow, p) reactions and interpreted with IBFM and QPM

Honzatko J; Bondarenko V; Tomandl I; von Egidy T; Wirth HF; Bucurescu D; Ponomarev VY; Marginean N; Hertenberger R; Eisermann Y

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Nuclear structure of Te-127 studied with (n, gamma) and ((d)over-right-arrow, p) reactions and interpreted with IBFM and QPM

机译：用（n，γ）和（（d）右箭头，p）反应研究Te-127的核结构，并用IBFM和QPM解释

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The nuclear structure of Te-127 has been investigated with the Te-126(n, gamma gamma) 127Te reaction using thermal neutrons and with the Te-126((d) over bar, p) Te-127 reaction at E-d = 20 MeV. About 190 levels were identified in a region to 4.1 MeV excitation energy, in most cases including spin, parity and gamma-decay. The gamma-decay scheme after neutron capture is essentially complete containing about 100% of the population of the 11/2(-) isomer and of the ground state. The thermal neutron capture cross section and isomer production of the 11/2(-) state at 88.3 keV were determined to be 0.44(6) b and 0.069(10) b, respectively. The neutron binding energy was determined to be 6287.6(1) keV A significant number of the (d, p) angular distributions of cross section and asymmetry are anomalous with respect to the distorted-wave Born-approximation calculations and could be accounted for by inelastic multi-step mechanisms. The observed strong correlation of the (d, p) and primary (n, gamma) strengths gives evidence for the direct neutron capture process which is mainly responsible for the primary population of 16 levels. The experimental level scheme is compared with predictions of the interacting boson-fermion model and of the quasiparticle phonon model. (c) 2005 Elsevier B.V. All rights reserved.

机译：Te-127的核结构已通过使用热中子的Te-126（n，gammaγ）127Te反应以及在Ed = 20 MeV下与Te-126（（d）over bar，p）的Te-127反应进行了研究。在一个4.1 MeV激发能的区域中，大约有190个水平被确认，大多数情况下包括自旋，奇偶校验和伽马衰变。中子俘获后的伽马衰变方案基本完成，包含约100％的11/2（-）异构体和基态。确定在88.3 keV时热中子俘获截面和11/2（-）状态的异构体生成分别为0.44（6）b和0.069（10）b。中子束缚能确定为6287.6（1）keV。相对于畸变波Born近似计算，横截面和不对称性的（d，p）角分布中有很大一部分是异常的，并且可以用非弹性来解释多步机制。观察到的（d，p）和初级（n，gamma）强度之间的强相关性为直接中子捕获过程提供了证据，该过程主要负责16级初级人口。实验水平方案与相互作用玻色子-费米子模型和准粒子声子模型的预测进行了比较。（c）2005 Elsevier B.V.保留所有权利。

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《Nuclear Physics, A: Journal Devoted to the Experimental Study of the Fundamental Constituents of Matter and Their Actions》 |2005年第4期|共59页
作者
Honzatko J; Bondarenko V; Tomandl I; von Egidy T; Wirth HF; Bucurescu D; Ponomarev VY; Marginean N; Hertenberger R; Eisermann Y;
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正文语种 eng
中图分类原子核物理学、高能物理学;
关键词
NUCLEAR REACTIONS : 126Te(n; gamma) E=thermal; measured E gamma; I gamma; gamma gamma-coincidence; Te-126(d; p); E=20 MeV; polarized d; measured particle spectra; sigma(theta); asymmetry; Te-127 deduced levels; J(pi); gamma-branching ratios; cross sections; binding energy; DWBA; CCBA spectroscopic factors; IBFM and QPM calculation and comparison; direct neutron capture; enriched targets; Ge detectors; Q3D magnetic spectrograph; EVEN TELLURIUM NUCLEI; PICK-UP REACTIONS; INTERMEDIATE STRUCTURE; LEVEL SCHEME; T REACTION; PHOTOEXCITATION; STATES; MODEL; TRANSITIONS; RESONANCES;

机译：核反应：126Te（n;γ）E =热;测得的Eγ;Iγ;伽马-巧合;Te-126（d;p）;E = 20 MeV;极化d;测得的粒子光谱;sigmaθ;不对称性;Te-127推导能级;J（pi）;γ分支比;截面;结合能;DWBA;CCBA光谱因子;IBFM和QPM计算和比较;直接中子俘获;富集目标;Ge探测器;Q3D磁光谱仪;偶核碲;拾取反应;中间结构;水平方案;T反应;光激发;状态;模型;过渡;共振;

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专利

1. Nuclear structure of Te-127 studied with (n, gamma) and ((d)over-right-arrow, p) reactions and interpreted with IBFM and QPM [J] . Honzatko J, Bondarenko V, Tomandl I, Nuclear Physics, A: Journal Devoted to the Experimental Study of the Fundamental Constituents of Matter and Their Actions . 2005,第3a4期

机译：用（n，γ）和（（d）右箭头，p）反应研究Te-127的核结构，并用IBFM和QPM解释
2. Nuclear structure of Te-129 studied with (n, gamma), (d, p) and ((d)over-right-arrow, t) reactions [J] . Wirth HF., von Egidy T., Tomandl I., Nuclear Physics, A: Journal Devoted to the Experimental Study of the Fundamental Constituents of Matter and Their Actions . 2003,第0期

机译：用（n，γ），（d，p）和（（d）右箭头，t）反应研究Te-129的核结构
3. Nuclear structure of Cd-112 studied through the Cd-111((d)over-right-arrow, p) reaction [J] . Jamieson D. S., Garrett P. E., Ball G. C., Physical review, C . 2018,第4期

机译：通过CD-111（（d）过箭头，p）反应研究CD-112的核结构
4. Nuclear Reactions and Self-Shielding Effects of Gamma-Ray Database for Nuclear Materials [C] . Tetsuji Noda, Mitsutane Fujita, Japan Atomic Energy Research Institute, Symposium on nuclear data . 2001

机译：核材料γ射线数据库的核反应和自屏蔽效应
5. A study of the nuclear structure of lead-207 and cadmium-116 with the (n,n(prime)gamma) reaction. [D] . Kadi, Mohammad W. 1998

机译：用（n，n（prime）γ）反应研究铅207和镉116的核结构。
6. Nuclear Structure Studies With the Inelastic Neutron Scattering Reaction and Gamma-Ray Detection [O] . P. E. Garrett, N. Warr, S. W. Yates 2000

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7. Nuclear Structure of the Closed Subshell Nucleus 90Zr Studied with the (n,n'(gamma)) Reaction [O] . P E Garrett, Y Younes, J A Becker, 2003

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Nuclear structure of Te-127 studied with (n, gamma) and ((d)over-right-arrow, p) reactions and interpreted with IBFM and QPM

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