Physics Letters B最新文献_第5页

Ghost-free non-local F(R) gravity compatible with ACT 无鬼非局部F(R)重力兼容ACT

IF 4.5 2区物理与天体物理

Physics Letters B Pub Date : 2026-03-01 Epub Date: 2026-02-19 DOI: 10.1016/j.physletb.2026.140290

Shin’ichi Nojiri , Sergei Odintsov , V.K. Oikonomou

引用次数: 0

Different triaxial shapes in the energy spectra of 154Sm 154Sm能谱的不同三轴形状

IF 4.5 2区物理与天体物理

Physics Letters B Pub Date : 2026-03-01 Epub Date: 2026-02-18 DOI: 10.1016/j.physletb.2026.140286

Chun-Xiao Zhou , Xue Shang , Tao Wang

引用次数: 0

Viability of A4, S4 and A5 flavour symmetries in light of the first JUNO result 从JUNO第一次结果看A4、S4和A5风味对称性的生存能力

IF 4.5 2区物理与天体物理

Physics Letters B Pub Date : 2026-03-01 Epub Date: 2026-02-21 DOI: 10.1016/j.physletb.2026.140295

S.T. Petcov , A.V. Titov

引用次数: 0

Symmetrized operators or modified integration measure in generalized uncertainty principle models 广义不确定性原理模型中的对称算子或修正积分测度

IF 4.5 2区物理与天体物理

Physics Letters B Pub Date : 2026-03-01 Epub Date: 2026-02-12 DOI: 10.1016/j.physletb.2026.140277

Michael Bishop , Daniel Hooker , Douglas Singleton

引用次数: 0

Universality in the resurgence of generalized Tracy-Widom distributions 广义特蕾西-智慧分布复兴中的普遍性

IF 4.5 2区物理与天体物理

Physics Letters B Pub Date : 2026-03-01 Epub Date: 2026-01-31 DOI: 10.1016/j.physletb.2026.140232

Zoltan Bajnok , Bercel Boldis , Dennis le Plat

引用次数: 0

Probing the shape evolution and shell structures in neutron-rich N=50 nuclei 富中子N=50核的形状演化和壳层结构探测

IF 4.5 2区物理与天体物理

Physics Letters B Pub Date : 2026-03-01 Epub Date: 2026-01-17 DOI: 10.1016/j.physletb.2026.140184

Anil Kumar , Noritaka Shimizu , Takayuki Miyagi , Yusuke Tsunoda , Yutaka Utsuno

{"title":"Probing the shape evolution and shell structures in neutron-rich N=50 nuclei","authors":"Anil Kumar , Noritaka Shimizu , Takayuki Miyagi , Yusuke Tsunoda , Yutaka Utsuno","doi":"10.1016/j.physletb.2026.140184","DOIUrl":"10.1016/j.physletb.2026.140184","url":null,"abstract":"<div><div>The structure of low-lying states of <span><math><mrow><mi>N</mi><mo>=</mo><mn>50</mn></mrow></math></span> nuclei is investigated by the advanced Monte Carlo shell model (MCSM) in the <span><math><mrow><mi>π</mi><mrow><mo>(</mo><mi>f</mi><mi>p</mi><mo>)</mo></mrow><mspace></mspace><mo>−</mo><mspace></mspace><mi>ν</mi><mrow><mo>(</mo><mi>s</mi><mi>d</mi><mi>g</mi><mo>)</mo></mrow></mrow></math></span> model space. We have employed the shell-model Hamiltonian based on the valence-space in-medium similarity renormalization group, with minimal phenomenological adjustments to the single-particle energies. The MCSM results with the modified Hamiltonian nicely predict the shape coexistence of <sup>78</sup>Ni, consistent with recent experimental data. The evolution of intrinsic shapes from the spherical shape to prolate shapes in the ground state of <span><math><mrow><mi>N</mi><mo>=</mo><mn>50</mn></mrow></math></span> nuclei is discussed using the ”T-plot” and effective single-particle energies, which visualize the intrinsic quadrupole deformation of the MCSM wave function. The present result shows that the monopole part of the tensor force does not enhance the shape coexistence of <sup>78</sup>Ni, unlike the case of <sup>68</sup>Ni.</div></div>","PeriodicalId":20162,"journal":{"name":"Physics Letters B","volume":"874 ","pages":"Article 140184"},"PeriodicalIF":4.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145995395","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Non-exotic wormhoe in Rastall theory 拉斯特尔理论中的非外来虫锄

IF 4.5 2区物理与天体物理

Physics Letters B Pub Date : 2026-03-01 Epub Date: 2026-02-13 DOI: 10.1016/j.physletb.2026.140276

F. Parsaei, S. Rastgoo

引用次数: 0

Accurate spontaneous fission half-lives from a microscopic large-scale nuclear structure model 精确自发裂变半衰期从微观大尺度核结构模型

IF 4.5 2区物理与天体物理

Physics Letters B Pub Date : 2026-03-01 Epub Date: 2026-02-18 DOI: 10.1016/j.physletb.2026.140287

A. Sánchez-Fernández , S. Bara , W. Ryssens , S. Goriely

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引用次数: 0

Criticality of charged AdS black holes with string clouds in boundary conformal field theory 带弦云的带电AdS黑洞在边界共形场论中的临界性

IF 4.5 2区物理与天体物理

Physics Letters B Pub Date : 2026-03-01 Epub Date: 2026-02-23 DOI: 10.1016/j.physletb.2026.140304

Aditya Singh , Sandip Mahish

引用次数: 0

The upper bound of event horizon formation time in generalized Oppenheimer–Snyder collapse 广义Oppenheimer-Snyder坍缩中视界形成时间的上界

IF 4.5 2区物理与天体物理

Physics Letters B Pub Date : 2026-03-01 Epub Date: 2026-02-03 DOI: 10.1016/j.physletb.2026.140245

Zhi-Chao Li, H. Khodabakhshi, H. Lü

引用次数: 0