发布求助
文献互助 智能选刊 最新文献

Bulletin of the Russian Academy of Sciences: Physics最新文献

筛选
英文 中文
Obtaining Estimated Values of Nuclear-Physical Decay Characteristics for Nuclei with Superallowed Beta Transitions 获得具有超允许β跃迁的核物理衰变特性的估计数值
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-08-18 DOI: 10.1134/S1062873825712152
A. K. Vlasnikov, I. S. Gusev
{"title":"Obtaining Estimated Values of Nuclear-Physical Decay Characteristics for Nuclei with Superallowed Beta Transitions","authors":"A. K. Vlasnikov,&nbsp;I. S. Gusev","doi":"10.1134/S1062873825712152","DOIUrl":"10.1134/S1062873825712152","url":null,"abstract":"<p>A new estimate is made of half-lives and branching ratios for 10 superallowed 0<sup>+</sup> → 0<sup>+</sup> beta-decays. Values of <i>ft</i> are obtained that include ones revised with allowance for theoretical corrections (<i>Ft</i>). Estimates are made using an improved criterion of reliability for the assessed values. The estimates are compared to evaluations by other authors.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"89 8","pages":"1347 - 1352"},"PeriodicalIF":0.48,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144868810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Description of Fragments Emitted in Collisions of Intermediate-Energy Heavy Ions Using a Nonequilibrium Hydrodynamic Approach 用非平衡流体动力学方法描述中能量重离子碰撞中发射的碎片
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-08-18 DOI: 10.1134/S1062873825712103
A. T. D’yachenko
{"title":"Description of Fragments Emitted in Collisions of Intermediate-Energy Heavy Ions Using a Nonequilibrium Hydrodynamic Approach","authors":"A. T. D’yachenko","doi":"10.1134/S1062873825712103","DOIUrl":"10.1134/S1062873825712103","url":null,"abstract":"<p>A nonequilibrium hydrodynamic approach was used to describe the experimental data obtained at the Alikhanov Institute of Theoretical and Experimental Physics on double differential emission cross sections of <sup>11</sup>Be and <sup>12</sup>B nuclei at an angle of 3.5° in the reaction <sup>12</sup>С + <sup>9</sup>Be → <i>f</i> + X at an energy of 300 MeV per nucleon for incident carbon nuclei. A comparison with other models was made, and the dynamics of the fragmentation process was analyzed.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"89 8","pages":"1312 - 1316"},"PeriodicalIF":0.48,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144868805","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Neutron-Induced Fission Cross Section of 237Np up to 500 MeV 高达500 MeV的237Np中子诱导裂变截面
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-08-18 DOI: 10.1134/S1062873825712127
A. S. Vorobyev, A. M. Gagarski, O. A. Shcherbakov, L. A. Vaishnene, A. M. Tiagelskaia, N. M. Olkhovich, A. L. Barabanov, T. E. Kuz’mina
{"title":"Neutron-Induced Fission Cross Section of 237Np up to 500 MeV","authors":"A. S. Vorobyev,&nbsp;A. M. Gagarski,&nbsp;O. A. Shcherbakov,&nbsp;L. A. Vaishnene,&nbsp;A. M. Tiagelskaia,&nbsp;N. M. Olkhovich,&nbsp;A. L. Barabanov,&nbsp;T. E. Kuz’mina","doi":"10.1134/S1062873825712127","DOIUrl":"10.1134/S1062873825712127","url":null,"abstract":"<p>The angular distributions of fragments and the fission cross section of <sup>237</sup>Np by neutrons in the energy range from 0.3 MeV to 500 MeV were simultaneously measured using the neutron time-of-flight spectrometer GNEIS at the Petersburg Nuclear Physics Institute, National Research Centre “Kurchatov Institute.” This paper presents a brief description of the experimental setup and compares the data obtained with the results of experiments performed earlier.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"89 8","pages":"1329 - 1334"},"PeriodicalIF":0.48,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144868807","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Microscopic Analysis of Elastic Scattering and Transfer Reactions in the 7Li + 10B Collision at a Beam Energy of 58 MeV 58 MeV束流下7Li + 10B碰撞弹性散射和转移反应的微观分析
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-08-18 DOI: 10.1134/S1062873825711985
E. V. Zemlyanaya, K. V. Lukyanov, V. K. Lukyanov, Yu. E. Penionzhkevich, Yu. G. Sobolev, S. S. Stukalov
{"title":"Microscopic Analysis of Elastic Scattering and Transfer Reactions in the 7Li + 10B Collision at a Beam Energy of 58 MeV","authors":"E. V. Zemlyanaya,&nbsp;K. V. Lukyanov,&nbsp;V. K. Lukyanov,&nbsp;Yu. E. Penionzhkevich,&nbsp;Yu. G. Sobolev,&nbsp;S. S. Stukalov","doi":"10.1134/S1062873825711985","DOIUrl":"10.1134/S1062873825711985","url":null,"abstract":"<p>A theoretical analysis was made of experimental data on the cross sections of <sup>7</sup>Li + <sup>10</sup>B elastic scattering and the neutron transfer reaction in collisions of these nuclei, which were obtained at beam energy of <i>E</i><sub>LAB</sub> = 58 MeV at the U-400 cyclotron at the Flerov Laboratory of Nuclear Reactions, Joint Institute for Nuclear Research, Dubna, Russia. The cross sections were calculated using a microscopic model of optical potential and the distorted-wave Born approximation.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"89 8","pages":"1236 - 1240"},"PeriodicalIF":0.48,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144868856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Search for One- and Tri-Nucleon Decays of 76Ge in the GERDA Experiment 在GERDA实验中寻找76Ge的单核子和三核子衰变
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-08-18 DOI: 10.1134/S1062873825712024
A. A. Smolnikov
{"title":"Search for One- and Tri-Nucleon Decays of 76Ge in the GERDA Experiment","authors":"A. A. Smolnikov","doi":"10.1134/S1062873825712024","DOIUrl":"10.1134/S1062873825712024","url":null,"abstract":"<p>Possible one- and tri-nucleon decays that violate baryon number conservation are predicted in several extensions of the Standard Model. The main goal of the GERDA experiment was to search for the neutrinoless double beta decay of <sup>76</sup>Ge. GERDA has provided other important results in the search for different processes beyond the Standard Model. Possible manifestations of an inclusive (i.e., mode-independent) decay of single neutrons and protons and certain modes of tri-nucleon decays in the <sup>76</sup>Ge nucleus have been sought in particular. Results from such studies are presented in the form of such constraints on partial lifetimes as τ<sub>n</sub> &gt; 1.5 × 10<sup>24</sup> years for neutrons, τ<sub>p</sub> &gt; 1.3 × 10<sup>24</sup> years for protons at 90% CL, and τ &gt; 1.2 × 10<sup>26</sup> years for tri-nucleon decays.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"89 8","pages":"1261 - 1268"},"PeriodicalIF":0.48,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144868597","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Study of the Structure of 12C and 6Li Nuclei in the α-Cluster and Shell Models α-簇和壳模型中12C和6Li核结构的研究
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-08-18 DOI: 10.1134/S1062873825712048
A. S. Bazhin, V. V. Samarin
{"title":"Study of the Structure of 12C and 6Li Nuclei in the α-Cluster and Shell Models","authors":"A. S. Bazhin,&nbsp;V. V. Samarin","doi":"10.1134/S1062873825712048","DOIUrl":"10.1134/S1062873825712048","url":null,"abstract":"<p>The wave functions and ground state energies of <sup>12</sup>C and <sup>6</sup>Li nuclei in the alpha cluster model are calculated using Feynman path integrals and hyperspherical functions. Calculated α-cluster separation energies and charge distributions are in good agreement with experimental data. Additional calculations in the shell model of a deformed nucleus for <sup>12</sup>C and a spherical nucleus for <sup>6</sup>Li also are in good agreement with the experimental data for the charge distributions.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"89 8","pages":"1273 - 1283"},"PeriodicalIF":0.48,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144868625","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Studying Charged-Particle Correlations in 124Xe + W Interactions at an Energy of 3.0 GeV/Nucleon 3.0 GeV/核子下124Xe + W相互作用中带电粒子相关性的研究
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-08-18 DOI: 10.1134/S1062873825711961
K. S. Volkova, I. S. Volkov, V. P. Ladygin, A. Yu. Isupov, S. G. Reznikov, A. V. Tishevsky, A. A. Terekhin, Yu. V. Gurchin, V. A. Kireyeu, V. A. Baskov, V. A. Dronov, A. I. L’vov, V. V. Polyansky, S. S. Sidorin
{"title":"Studying Charged-Particle Correlations in 124Xe + W Interactions at an Energy of 3.0 GeV/Nucleon","authors":"K. S. Volkova,&nbsp;I. S. Volkov,&nbsp;V. P. Ladygin,&nbsp;A. Yu. Isupov,&nbsp;S. G. Reznikov,&nbsp;A. V. Tishevsky,&nbsp;A. A. Terekhin,&nbsp;Yu. V. Gurchin,&nbsp;V. A. Kireyeu,&nbsp;V. A. Baskov,&nbsp;V. A. Dronov,&nbsp;A. I. L’vov,&nbsp;V. V. Polyansky,&nbsp;S. S. Sidorin","doi":"10.1134/S1062873825711961","DOIUrl":"10.1134/S1062873825711961","url":null,"abstract":"<p>The authors study three-particle correlations of charged particles in the <sup>124</sup>Xe–W reaction at an energy of 3 GeV/nucleon at the Nuclotron Internal Target Station. Experimental results are compared to model calculations made using the PHQMD event generator and the Geant4 software package.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"89 8","pages":"1223 - 1229"},"PeriodicalIF":0.48,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144868854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Studies of Angular Distributions and Cross Sections of Gamma-Ray Radiation on Si and O Nuclei in Reactions with Fast Neutrons 快中子反应中Si和O核上伽玛射线辐射角分布和截面的研究
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-08-18 DOI: 10.1134/S1062873825712012
A. V. Andreev, N. A. Fedorov, D. N. Grozdanov, P. S. Prusachenko, Yu. N. Kopatch, T. Yu. Tretyakova, G. V. Pampushik, C. Hramco, A. P. Zuev, P. G. Filonchik, P. I. Kharlamov, I. N. Ruskov, V. R. Skoy
{"title":"Studies of Angular Distributions and Cross Sections of Gamma-Ray Radiation on Si and O Nuclei in Reactions with Fast Neutrons","authors":"A. V. Andreev,&nbsp;N. A. Fedorov,&nbsp;D. N. Grozdanov,&nbsp;P. S. Prusachenko,&nbsp;Yu. N. Kopatch,&nbsp;T. Yu. Tretyakova,&nbsp;G. V. Pampushik,&nbsp;C. Hramco,&nbsp;A. P. Zuev,&nbsp;P. G. Filonchik,&nbsp;P. I. Kharlamov,&nbsp;I. N. Ruskov,&nbsp;V. R. Skoy","doi":"10.1134/S1062873825712012","DOIUrl":"10.1134/S1062873825712012","url":null,"abstract":"<p>Within the framework of the TANGRA project, an experimental setup was created to measure the angular distributions and cross sections of gamma-ray radiation in reactions (<i>n</i>, Xγ) during the interaction of neutrons with an energy of 14.1 MeV with Si and O nuclei. Design features of the setup and a method for processing experimental data were described.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"89 8","pages":"1254 - 1260"},"PeriodicalIF":0.48,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144868802","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Studying the Production of Identified Charged Hadrons in the PHENIX Experiment 在PHENIX实验中研究已识别带电强子的产生
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-08-18 DOI: 10.1134/S1062873825712097
D. M. Larionova, Ya. A. Berdnikov, D. O. Kotov
{"title":"Studying the Production of Identified Charged Hadrons in the PHENIX Experiment","authors":"D. M. Larionova,&nbsp;Ya. A. Berdnikov,&nbsp;D. O. Kotov","doi":"10.1134/S1062873825712097","DOIUrl":"10.1134/S1062873825712097","url":null,"abstract":"<p>The authors present recent PHENIX measurements of the production of identified charged hadrons (<span>({{pi }^{ pm }})</span>, <span>({{K}^{ pm }})</span>, <span>(p)</span>, <span>(bar {p})</span>) in <span>(p)</span> + Al, <sup>3</sup>He + Au, and Cu + Au collisions at <span>(sqrt {{{s}_{{NN}}}} )</span> = 200 GeV and in U + U collisions at <span>(sqrt {{{s}_{{NN}}}} )</span> = 193 GeV. The measured ratios of <span>(p{text{/}}~{{pi }^{ + }})</span> and <span>(bar {p}{text{/}}{{pi }^{ - }})</span> yields are compared to predictions made with the AMPT (string melting version) and PYTHIA/ANGANTYR program packages. Integral ratios of <span>(p{text{/}}~{{pi }^{ + }})</span>, <span>(bar {p}{text{/}}{{pi }^{ - }})</span>, <span>({{K}^{ + }}{text{/}}{{pi }^{ + }})</span>, <span>({{K}^{ - }}{text{/}}{{pi }^{ - }})</span> yields are presented as functions of the number of nucleons participating in nucleus–nucleus interactions.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"89 8","pages":"1307 - 1311"},"PeriodicalIF":0.48,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144868836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Study of the Flash Effect at the Proton Accelerator of INR RAS INR - RAS质子加速器闪光效应研究
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-08-18 DOI: 10.1134/S1062873825711948
S. V. Akulinichev
{"title":"Study of the Flash Effect at the Proton Accelerator of INR RAS","authors":"S. V. Akulinichev","doi":"10.1134/S1062873825711948","DOIUrl":"10.1134/S1062873825711948","url":null,"abstract":"<p>A brief overview is presented of the results and methods for conducting radiobiological experiments to study the patterns of flash effect at the linear proton accelerator of the Institute for Nuclear Research, Russian Academy of Sciences, Moscow, Russia. An increase in apoptosis of tumor cells compared to normal cells was found when the dose rate was increased to extreme values.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"89 8","pages":"1209 - 1215"},"PeriodicalIF":0.48,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144868837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信