New 
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-Emitting Isotope 
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi mathvariant="normal">U</mml:mi></mml:mrow><mml:mprescripts /><mml:none /><mml:mrow><mml:mn>214</mml:mn></mml:mrow></mml:mmultiscripts></mml:mrow></mml:math>
 and Abnormal Enhancement of 
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Zhang, Z Y; Yang, H. B.; Huang, Min; Gan, Z. G.; Yuan, C. X.; Qi, Chong; Andreyev, A. N.; Liu, M L; Ma, Long; Zhang, M M; Tian, Y. L.; Wang, Y S; Wang, J G; Yang, Chen; Li, G S; Qiang, Y. H.; Yang, Weiqing; Chen, R F; Zhang, H B; Lu, Z.W.; Xu, X. X.; Duan, Limin; Yang, Haiyan; Huang, Wenxue; Liu, Z; Zhou, X. H.; Zhang, Y H; Xu, H. S.; Wang, N; Zhou, Haibiao; Wen, Xianfei; Huang, Siyu; Wang, Hua; Zhu, Long; Wang, X; Mao, Yunlong; He, Xiao-Tao; Wang, S Y; Xu, W. Z.; Li, H W; Ren, Zhongzhou; Zhou, Shenlei

doi:10.1103/physrevlett.126.152502

Cited by 52 publications

(22 citation statements)

References 65 publications

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“…Moreover, SDPF-MU and SDPF-U-SI are proposed primarily for nuclei with N ~28. The two interactions have been compared in the calculations of 42 Si. Results showed that CISM calculations with SDPF-MU agreed better with existing data [56].…”

Section: Sdpf-u-simentioning

confidence: 99%

“…The shell model is an essential tool for the systematic understanding of the nuclear structure. Recently, it has been employed in describing light, proton-rich, exotic nuclei and the related isospin symmetry breaking [30][31][32][33], interpreting the shell evolution in the medium mass region [34,35], reproducing isomeric states in the medium [36,37] and heavy nuclei [38][39][40], and investigating the α-decay properties of heavy-mass nuclei [41,42].…”

Section: Introductionmentioning

confidence: 99%

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Cross-Shell Excitation in F and Ne Isotopes around N = 20

Liu

Yuan

2021

Symmetry

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Within the framework of the configuration–interaction shell model, the present work applies three effective interactions to investigate the effects of the cross-shell excitation on F and Ne isotopes around N = 20, which are significantly proton–neutron asymmetric, and have different properties compared with the proton–neutron symmetric nuclei. It is shown that cross-shell excitation is necessary in order to reproduce separation energies, neutron drip lines, and low-energy levels of these isotopes. Furthermore, the cross-shell excitation of (0–5)ħω is suggested to be important in the description of 29F and 30Ne. However, the three interactions are insufficient in describing the bound structure of 29,31Ne, and provide inconsistent shell structures and evolutions in the target nuclei. Their cross-shell interactions are suggested to be improved.

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Section: Sdpf-u-simentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Cross-Shell Excitation in F and Ne Isotopes around N = 20

Liu

Yuan

2021

Symmetry

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“…The development of radioactive beams across the globe since they were first used a few decades ago has extended the frontiers of the knowledge of the nuclear shell structure, especially in light nuclei. Yet, from the experimental front, little is presently known of the structure evolution in the heavy nuclei around and below the neutron shell closure at N = 126 [12,15,16]. Particularly, some neutron-deficient nuclei around the region Z = 82 in the heavy-ion reaction are often excluded in the in-beam γ-ray experiments [17].…”

Section: Introductionmentioning

confidence: 99%

“…Recently, a new neutron-deficient α-emitting isotope 214 U produced by the fusionevaporation reaction 182 W( 36 Ar, 4n) 214 U has been observed [15]. Its α-decay energy and half-life were measured to be Q α = 8533 (18) KeV and T 1/2 = 0.52 +0.95 −0.21 ms, respectively.…”

Section: Introductionmentioning

confidence: 99%

Divergence in the Relativistic Mean Field Formalism: A Case Study of the Ground State Properties of the Decay Chain of 214,216,218U Isotopes

et al. 2022

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A new α-emitting has been observed experimentally for neutron deficient 214U which opens the window to theoretically investigate the ground state properties of 214,216,218U isotopes and to examine α-particle clustering around the shell closure. The decay half-lives are calculated within the preformed cluster-decay model (PCM). To obtain the α-daughter interaction potential, the RMF densities are folded with the newly developed R3Y and the well-known M3Y NN potentials for comparison. The alpha preformation probability (Pα) is calculated from the analytic formula of Deng and Zhang. The WKB approximation is employed for the calculation of the transmission probability. The individual binding energies (BE) for the participating nuclei are estimated from the relativistic mean-field (RMF) formalism and those from the finite range droplet model (FRDM) as well as WS3 mass tables. In addition to Z=84, the so-called abnormal enhancement region, i.e., 84≤Z≤90 and N<126, is normalised by an appropriately fitted neck-parameter ΔR. On the other hand, the discrepancy sets in due to the shell effect at (and around) the proton magic number Z=82 and 84, and thus a higher scaling factor ranging from 10−5–10−8 is required. Additionally, in contrast with the experimental binding energy data, large deviations of about 5–10 MeV are evident in the RMF formalism despite the use of different parameter sets. An accurate prediction of α-decay half-lives requires a Q-value that is in proximity with the experimental data. In addition, other microscopic frameworks besides RMF could be more reliable for the mass region under study. α-particle clustering is largely influenced by the shell effect.

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“…One of the key issues is the shell structure in these nuclei, i.e., the robustness of the N = 126 shell gap and the existence of the foreseen Z = 92 subshell. Important experimental progresses have been made along this line in recent years; see, e.g., [1][2][3][4][5][6][7]. Theoretically, characterized by large model spaces and reflections of various correlations, the nuclei in the 208 Pb region are challenging subjects.…”

Section: Introductionmentioning

confidence: 99%

Description for N = 126 Isotones 210Po and 212Rn with Particle-Hole Excited Nucleon-Pair Approximation and Realistic Effective Interaction

2022

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In this paper, we study yrast states of two N = 126 isotones 210Po and 212Rn using the nucleon-pair approximation with particle–hole excitations and using a low-momentum interaction Vlow−k renormalized from the free CD-Bonn NN potential. An overall good agreement with experimental level structures, B(E2)s, and B(E3)s, is achieved. We also calculate the probabilities of neutron particle–hole excitations in these yrast states, with a focus on negative-parity states, which reflect the roles played by the neutron negative-parity configurations of one-particle-one-hole excitations across the N = 126 shell gap and the negative-parity configurations of valence proton particles involving the 0i13/2 orbit. The N = 126 shell gap is discussed in terms of energies of neutron one-particle-one-hole excitations.

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New α -Emitting Isotope U214 and Abnormal Enhancement of <

Cited by 52 publications

References 65 publications

Cross-Shell Excitation in F and Ne Isotopes around N = 20

Cross-Shell Excitation in F and Ne Isotopes around N = 20

Divergence in the Relativistic Mean Field Formalism: A Case Study of the Ground State Properties of the Decay Chain of 214,216,218U Isotopes

Description for N = 126 Isotones 210Po and 212Rn with Particle-Hole Excited Nucleon-Pair Approximation and Realistic Effective Interaction

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