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

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Target Dependence of the Isotope Distributions in Heavy-Ion Reactions at Fermi Energy 费米能重离子反应中同位素分布的靶依赖性
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-08-18 DOI: 10.1134/S106287382571195X
T. I. Mikhailova, B. Erdemchimeg, Yu. M. Sereda
{"title":"Target Dependence of the Isotope Distributions in Heavy-Ion Reactions at Fermi Energy","authors":"T. I. Mikhailova,&nbsp;B. Erdemchimeg,&nbsp;Yu. M. Sereda","doi":"10.1134/S106287382571195X","DOIUrl":"10.1134/S106287382571195X","url":null,"abstract":"<p>Heavy-ion reactions with energies close to Fermi energy are of interest because they exhibit the features of deep inelastic transfer and direct reactions. The transport-statistical approach describes sufficiently well the cross-sections of isotopes not far from the stability line and allows to explain their dependence on the mass of the target. In this work the comparison of transport-statistical calculations with other available models is presented.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"89 8","pages":"1216 - 1222"},"PeriodicalIF":0.48,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144869093","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
Magnetized Nuclei in the r-Process r过程中的磁化原子核
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-08-18 DOI: 10.1134/S1062873825711973
V. N. Kondratyev
{"title":"Magnetized Nuclei in the r-Process","authors":"V. N. Kondratyev","doi":"10.1134/S1062873825711973","DOIUrl":"10.1134/S1062873825711973","url":null,"abstract":"<p>The synthesis of ultramagnetized heavy atomic nuclei is considered. Such nuclei are formed during type II supernova explosions and neutron star mergers. In a magnetic field of 0.1–10 TT, the Zeeman effect leads to a linear nuclear magnetic response, which can be described in terms of magnetic susceptibility. Under the influence of magnetic fields, the path of the <i>r</i>-process changes with an increase in the fraction of nuclei with masses less than magic, as well as the volume of nuclides of smaller masses at the <i>r</i>-process peaks increases.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"89 8","pages":"1230 - 1235"},"PeriodicalIF":0.48,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144868855","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
Towards Accounting of the Diffraction Dissociation in Nucleus–Nucleus Interactions 核-核相互作用中衍射解离的计算
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-08-18 DOI: 10.1134/S1062873825711997
V. V. Uzhinsky, A. S. Galoyan, N. A. Chalyi
{"title":"Towards Accounting of the Diffraction Dissociation in Nucleus–Nucleus Interactions","authors":"V. V. Uzhinsky,&nbsp;A. S. Galoyan,&nbsp;N. A. Chalyi","doi":"10.1134/S1062873825711997","DOIUrl":"10.1134/S1062873825711997","url":null,"abstract":"<p>The FRITIOF model, widely used in Monte Carlo generators of artificial events, in particular, in the Geant4 software package, is supplemented by the treatment of the formation and interactions of diffraction-produced systems in nuclei. A good description of the first experimental data of the NICA BM@N collaboration on the production of π<sup>+</sup> mesons in interactions of <sup>40</sup>Ar nuclei with various nuclei at the energy of 3.2A GeV is obtained.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"89 8","pages":"1241 - 1245"},"PeriodicalIF":0.48,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144868803","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
Model of Nucleon Clustering and Fragment Formation in Fission of Heavy Nuclei 重核裂变中核子聚集和碎片形成的模型
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-08-18 DOI: 10.1134/S1062873825712085
Y. V. Ivanskiy, A. V. Unzhakova
{"title":"Model of Nucleon Clustering and Fragment Formation in Fission of Heavy Nuclei","authors":"Y. V. Ivanskiy,&nbsp;A. V. Unzhakova","doi":"10.1134/S1062873825712085","DOIUrl":"10.1134/S1062873825712085","url":null,"abstract":"<p>The problem of theoretical description of the formation of fission fragments was considered within the framework of an extended Vicsek-type collective model. The non-mean-field approach is based on microscopic modeling of the nucleon clustering as a phenomenon of particle aggregation due to short-range mutual interaction. Numerical computer simulations were carried out for the <sup>208</sup>Pb cluster, which is observed experimentally in the multimodal fission of heavy and superheavy nuclei.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"89 8","pages":"1302 - 1306"},"PeriodicalIF":0.48,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144868812","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
Formation of Near-Surface Toroidal Magnetic Fields of the Sun. Extended Solar Cycle 太阳近表面环面磁场的形成。延长太阳活动周期
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-07-16 DOI: 10.1134/S1062873825711729
A. G. Tlatov
{"title":"Formation of Near-Surface Toroidal Magnetic Fields of the Sun. Extended Solar Cycle","authors":"A. G. Tlatov","doi":"10.1134/S1062873825711729","DOIUrl":"10.1134/S1062873825711729","url":null,"abstract":"<p>Observational aspects of the formation of near-surface toroidal magnetic fields on the Sun were considered. Based on the analysis of magnetic field observations in the period 2010–2024, diagrams of the distribution of horizontal magnetic fields and magnetic bipoles of ephemeral regions in the solar cycle were obtained. The obtained diagrams are close to the concept of an extended cycle of solar activity. The formation of surface azimuthal magnetic fields was modeled based on the evolution of U-shaped magnetic bipoles of active regions. The modeling took into account near-equatorial bipoles with a magnetic field propagating through the solar equator; this made it possible to achieve good agreement with the duration of the azimuthal field polarity at low latitudes.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"89 7","pages":"1071 - 1077"},"PeriodicalIF":0.48,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145144012","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
Features of the Temperature Dependence of the Deformation Processes of Microdroplets of Magneto-Sensitive Emulsion in Constant and Alternating Magnetic Fields 恒磁场和交变磁场下磁敏乳液微滴变形过程的温度依赖性特征
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-07-16 DOI: 10.1134/S1062873825711730
E. S. Beketova, Yu. I. Dikanskii
{"title":"Features of the Temperature Dependence of the Deformation Processes of Microdroplets of Magneto-Sensitive Emulsion in Constant and Alternating Magnetic Fields","authors":"E. S. Beketova,&nbsp;Yu. I. Dikanskii","doi":"10.1134/S1062873825711730","DOIUrl":"10.1134/S1062873825711730","url":null,"abstract":"<p>A study was made of the features of deformation of microemulsion droplets with low interfacial tension at the droplet–medium interface under the influence of magnetic fields in a wide temperature range. The nature of the temperature dependence of the microdroplet deformation parameter on the intensity of both constant and alternating magnetic fields has been established. Differences in the deformation patterns of microdroplets obtained from magnetic fluids with different structural states have been revealed.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"89 7","pages":"1078 - 1085"},"PeriodicalIF":0.48,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145144013","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 Magnetic Hydrodynamics and Liquid Metal Heat Transfer inside a Pipe-in-Channel Heat Exchange System Applied to a Fusion Reactor Blanket Module 应用于核聚变堆包层模块的管道换热系统内磁流体力学及液态金属传热研究
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-07-16 DOI: 10.1134/S1062873825711912
N. A. Luchinkin, N. G. Razuvanov, O. N. Polyanskaya
{"title":"Study of Magnetic Hydrodynamics and Liquid Metal Heat Transfer inside a Pipe-in-Channel Heat Exchange System Applied to a Fusion Reactor Blanket Module","authors":"N. A. Luchinkin,&nbsp;N. G. Razuvanov,&nbsp;O. N. Polyanskaya","doi":"10.1134/S1062873825711912","DOIUrl":"10.1134/S1062873825711912","url":null,"abstract":"<p>A set of computational and experimental studies are performed for flows of liquid metal in a combined pipe-in-channel system with and without double cooling in a transverse magnetic field. Results from numerical modeling are compared to experimental findings. The configuration of the flow and its structure depend strongly on both the presence of a transverse magnetic field and the connection of a natural circulation loop and its cooling.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"89 7","pages":"1187 - 1193"},"PeriodicalIF":0.48,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145143583","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
Surface Deformation Effect in the In–Ga–Sn Liquid Metal System with Hemispherical Electrodes 半球形电极in - ga - sn液态金属体系的表面变形效应
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-07-16 DOI: 10.1134/S1062873825711900
I. O. Teplyakov, S. V. Kiselyova, K. G. Kubrikov, K. Yu. Malyshev, P. I. Polyakov
{"title":"Surface Deformation Effect in the In–Ga–Sn Liquid Metal System with Hemispherical Electrodes","authors":"I. O. Teplyakov,&nbsp;S. V. Kiselyova,&nbsp;K. G. Kubrikov,&nbsp;K. Yu. Malyshev,&nbsp;P. I. Polyakov","doi":"10.1134/S1062873825711900","DOIUrl":"10.1134/S1062873825711900","url":null,"abstract":"<p>A system with a eutectic In–Ga–Sn alloy between hemispherical electrodes is considered. The deformation of the surface of the liquid conductor under the action of an electromagnetic force is investigated. Experimental and calculated values of the current at which the liquid is detached and a discharge occurs are presented as functions of the diameter of the small electrode.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"89 7","pages":"1181 - 1186"},"PeriodicalIF":0.48,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145143702","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
Influence of the Magnetic Field on Photoinduced Thermocapillary Deformation of the Surface of a Magnetic Fluid Layer 磁场对磁流体层表面光致热毛细变形的影响
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-07-16 DOI: 10.1134/S1062873825711754
V. D. Mkrtchyan, Yu. I. Dikanskii
{"title":"Influence of the Magnetic Field on Photoinduced Thermocapillary Deformation of the Surface of a Magnetic Fluid Layer","authors":"V. D. Mkrtchyan,&nbsp;Yu. I. Dikanskii","doi":"10.1134/S1062873825711754","DOIUrl":"10.1134/S1062873825711754","url":null,"abstract":"<p>Features of the photothermocapillary effect in magnetic colloids were studied. The effect of the magnetic field on the photothermocapillary effect in such media was investigated, and the features of changing the size and shape of the thermocapillary response were identified, depending on the dimensional parameters of the cell with the sample. A conclusion was made about the possibility of successful control of the effect using a magnetic field.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"89 7","pages":"1093 - 1098"},"PeriodicalIF":0.48,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145144011","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
Correlation Analysis of the Interaction of Surface Magnetohydrodynamic Waves 表面磁流体动力波相互作用的相关分析
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-07-16 DOI: 10.1134/S1062873825711717
M. A. Gashkov, E. A. Kochurin
{"title":"Correlation Analysis of the Interaction of Surface Magnetohydrodynamic Waves","authors":"M. A. Gashkov,&nbsp;E. A. Kochurin","doi":"10.1134/S1062873825711717","DOIUrl":"10.1134/S1062873825711717","url":null,"abstract":"<p>An analysis was made of correlations of the interaction of nonlinear waves on the surface of a magnetic fluid in the mode of developed magnetohydrodynamic wave turbulence. It was shown that a horizontal magnetic field leads to compression of the resonant interaction curve. Physically, this process corresponds to anisotropic transfer of magnetic energy into the energy of capillary waves traveling perpendicular to the external field direction.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"89 7","pages":"1066 - 1070"},"PeriodicalIF":0.48,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145143982","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
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