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Physics of Particles and Nuclei Letters最新文献

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Phase Shift Analysis of Velocity-Dependent Potential
IF 0.4
Physics of Particles and Nuclei Letters Pub Date : 2025-05-14 DOI: 10.1134/S1547477124702480
D. Naik, B. Swain, B. Khirali, U. Laha
{"title":"Phase Shift Analysis of Velocity-Dependent Potential","authors":"D. Naik,&nbsp;B. Swain,&nbsp;B. Khirali,&nbsp;U. Laha","doi":"10.1134/S1547477124702480","DOIUrl":"10.1134/S1547477124702480","url":null,"abstract":"<p>Utilizing a basic technique of Taylor series expansion of the wave function, a phase equivalent energy-dependent local potential that corresponds to both a local and non-local interaction is constructed. A potential that depends on energy and momentum is obtained using the distorted non-local Hulthén interaction. The generated potential is utilized to calculate the scattering phase shifts by appropriately applying MacKellar-May and Behera’s phase equation. The outcomes for the nucleon-nucleon systems up to 1050 MeV match the usual data.</p>","PeriodicalId":730,"journal":{"name":"Physics of Particles and Nuclei Letters","volume":"22 2","pages":"380 - 385"},"PeriodicalIF":0.4,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143944348","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
On the Experimental Observation of Simultaneous Acceleration and Slow Extraction of Several Ion Beams with Similar Charge-to-Mass Ratios at the Nuclotron of the Laboratory of High Energy Physics at JINR
IF 0.4
Physics of Particles and Nuclei Letters Pub Date : 2025-05-14 DOI: 10.1134/S1547477124702558
D. S. Korovkin, V. I. Astakhov, A. A. Baldin, A. V. Butenko, A. V. Beloborodov, D. N. Bogoslovskii, E. E. Donets, A. V. Shchipunov
{"title":"On the Experimental Observation of Simultaneous Acceleration and Slow Extraction of Several Ion Beams with Similar Charge-to-Mass Ratios at the Nuclotron of the Laboratory of High Energy Physics at JINR","authors":"D. S. Korovkin,&nbsp;V. I. Astakhov,&nbsp;A. A. Baldin,&nbsp;A. V. Butenko,&nbsp;A. V. Beloborodov,&nbsp;D. N. Bogoslovskii,&nbsp;E. E. Donets,&nbsp;A. V. Shchipunov","doi":"10.1134/S1547477124702558","DOIUrl":"10.1134/S1547477124702558","url":null,"abstract":"<p>The diagnostic system of the Nuclotron extracted beam from the beam output point to the F-3 focus is described. An analysis of experimental data on the measurements and monitoring of the extracted Nuclotron beams during the 55th session in 2018 is presented. The features of the time characteristics of accelerated and extracted ions are analyzed. It is shown that simultaneously with the acceleration of carbon nuclei, nitrogen and oxygen nuclei, which have similar charge-to-mass ratios, were also accelerated and extracted to the experimental setups.</p>","PeriodicalId":730,"journal":{"name":"Physics of Particles and Nuclei Letters","volume":"22 2","pages":"442 - 447"},"PeriodicalIF":0.4,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143944203","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
Re-Investigation of Entrance Channel Effects in Heavy-Ion Fusion-Fission Dynamics
IF 0.4
Physics of Particles and Nuclei Letters Pub Date : 2025-05-14 DOI: 10.1134/S1547477124702170
P. Dubey, A. Kumar
{"title":"Re-Investigation of Entrance Channel Effects in Heavy-Ion Fusion-Fission Dynamics","authors":"P. Dubey,&nbsp;A. Kumar","doi":"10.1134/S1547477124702170","DOIUrl":"10.1134/S1547477124702170","url":null,"abstract":"<p>The experimental calculation of pre-scission neutron multiplicity is a highly valuable method for determining the fission timescale. In this study, we have determined the fission time for three consecutive shell-closure compound nuclei, namely <sup>212</sup>Rn, <sup>213</sup>Fr, and <sup>214</sup>Ra (with a neutron number of 126) forming via different entrance channel, as well as three consecutive non shell-closure compound nuclei, namely <sup>214</sup>Rn, <sup>215</sup>Fr, and <sup>216</sup>Ra (with a neutron number of 128). To accomplish this, we have utilized the statistical model code JOANNE2 and incorporated available experimental data from EXFOR. Our observation shows that non-shell closure compound nuclei exhibit more dissipation compared to shell closure compound nuclei, resulting in a longer fission time.</p>","PeriodicalId":730,"journal":{"name":"Physics of Particles and Nuclei Letters","volume":"22 2","pages":"242 - 245"},"PeriodicalIF":0.4,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143944215","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
Spectral Method for Solving the Time-Dependent Schrödinger Equation on a Non-Uniform Coordinate Grid
IF 0.4
Physics of Particles and Nuclei Letters Pub Date : 2025-05-14 DOI: 10.1134/S1547477124702595
M. A. Zakharov
{"title":"Spectral Method for Solving the Time-Dependent Schrödinger Equation on a Non-Uniform Coordinate Grid","authors":"M. A. Zakharov","doi":"10.1134/S1547477124702595","DOIUrl":"10.1134/S1547477124702595","url":null,"abstract":"<p>The fundamental possibility of a numerical solution of the time-dependent Schrödinger equation for a wave function defined on a non-uniform coordinate grid by the spectral method using the fast Fourier transform algorithm is discussed. The method is based on reducing the non-uniform coordinate grid to a uniform one by a non-linear transformation of coordinates and approximating the obtained evolution operator using the Lie–Trotter–Suzuki product formula. Algorithms for the numerical solution of the first and second orders are developed.</p>","PeriodicalId":730,"journal":{"name":"Physics of Particles and Nuclei Letters","volume":"22 2","pages":"468 - 476"},"PeriodicalIF":0.4,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143944283","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
Relation of Transuranium Isotope Yields as Indicator of the Achieved Neutron Fluences at the Pulse Nucleosynthesis
IF 0.4
Physics of Particles and Nuclei Letters Pub Date : 2025-05-14 DOI: 10.1134/S1547477124702364
V. I. Lyashuk
{"title":"Relation of Transuranium Isotope Yields as Indicator of the Achieved Neutron Fluences at the Pulse Nucleosynthesis","authors":"V. I. Lyashuk","doi":"10.1134/S1547477124702364","DOIUrl":"10.1134/S1547477124702364","url":null,"abstract":"<p>The creation of transuranium nuclides under extremal pulsed neutron fluences (of 10<sup>24</sup> n/cm<sup>2</sup> units) of artificial nucleosynthesis is investigated by means of the dynamical model taking into account the temperature decrease at the matter expansion. An intensive (<i>n</i>, γ) activation of <sup>238</sup>U target ensures the production of neutron-rich isotopes up to <sup>257</sup>Fm. The results for isotope generation are obtained for five large scale explosive tests. The calculated yields are in good or satisfactory agreement with experiments. The relations for isotope yields depending on the neutron fluence are discussed for pairs of nuclides with atomic masses (245, 244), (246, 245), and (247, 246). The results obtained for two types of irradiated targets (<sup>238</sup>U mono-isotope and proposed variant with admixture of <sup>239</sup>Pu) indicate on the approximately linear trend relative to the neutron fluences. The strongest confirmation of the linear trend is obtained for <sup>238</sup>U target.</p>","PeriodicalId":730,"journal":{"name":"Physics of Particles and Nuclei Letters","volume":"22 2","pages":"324 - 328"},"PeriodicalIF":0.4,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143944305","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
Enhancement of the Fundamental Symmetry Breaking Effects in Neutron Resonances: Kinematical or Resonance?
IF 0.4
Physics of Particles and Nuclei Letters Pub Date : 2025-05-14 DOI: 10.1134/S1547477124702169
V. E. Bunakov
{"title":"Enhancement of the Fundamental Symmetry Breaking Effects in Neutron Resonances: Kinematical or Resonance?","authors":"V. E. Bunakov","doi":"10.1134/S1547477124702169","DOIUrl":"10.1134/S1547477124702169","url":null,"abstract":"<p>Two theoretical approaches to the enhancement of the <i>P</i>- or <i>T</i>-violation effects in polarized neutron transmission are compared in this paper.</p>","PeriodicalId":730,"journal":{"name":"Physics of Particles and Nuclei Letters","volume":"22 2","pages":"239 - 241"},"PeriodicalIF":0.4,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143944313","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
The Elemental Content of Seawater and Algae Collected from the Red Sea, the Arabian Gulf, and the Gulf of Oman: Preliminary Study
IF 0.4
Physics of Particles and Nuclei Letters Pub Date : 2025-05-14 DOI: 10.1134/S1547477124702443
N. Nassar, M. M. Sherif, N. S. Yushin, I. I. Zinicovscaia
{"title":"The Elemental Content of Seawater and Algae Collected from the Red Sea, the Arabian Gulf, and the Gulf of Oman: Preliminary Study","authors":"N. Nassar,&nbsp;M. M. Sherif,&nbsp;N. S. Yushin,&nbsp;I. I. Zinicovscaia","doi":"10.1134/S1547477124702443","DOIUrl":"10.1134/S1547477124702443","url":null,"abstract":"<p>The content of Na, Mg, Al, Ca, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Sr, Cd, Ba, and Pb in 24 samples of algae and 9 samples of water collected from 5 stations in the Red Sea, 2 stations in the Gulf of Oman, and 2 stations in the Arabian Gulf were determined using ICP-OES. For all water samples, it was found that the concentrations of Cr, Co, Ni, Cd, and Pb were below the detection limits. Meanwhile, the predominant elements found in all water samples were Na, Mg, and Ca. Except for Ba, which attains its peak concentration at the Kalba station in the Gulf of Oman, the highest levels of all examined elements were detected in water samples from the Red Sea. On the contrary, the highest content of most of the elements were determined in algae samples collected from the Gulf of Oman: Fe, Co, Ni, and Cu in <i>Callithamnion corymbosum</i> sp<i>.</i> collected from Diba Fujairah station, while Cr and Mn in <i>Corallinalis</i> sp. collected from Kalba station. Notably, the highest content of Pb was found in <i>Sargassum</i> sp<i>.</i> collected from Zaafrana station (the Red Sea) with a value of 19.4 mg/kg, which is 18 times higher than the average Pb content in all collected samples, revealing a possible Pb contamination in this area.</p>","PeriodicalId":730,"journal":{"name":"Physics of Particles and Nuclei Letters","volume":"22 2","pages":"358 - 362"},"PeriodicalIF":0.4,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143944384","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
Calculating the Exciting Cavity of a Pulsed High-Power S-Band Klystron
IF 0.4
Physics of Particles and Nuclei Letters Pub Date : 2025-05-14 DOI: 10.1134/S1547477124702546
A. E. Levichev, V. Yu. Ivanov, A. M. Barnyakov, S. L. Samoilov
{"title":"Calculating the Exciting Cavity of a Pulsed High-Power S-Band Klystron","authors":"A. E. Levichev,&nbsp;V. Yu. Ivanov,&nbsp;A. M. Barnyakov,&nbsp;S. L. Samoilov","doi":"10.1134/S1547477124702546","DOIUrl":"10.1134/S1547477124702546","url":null,"abstract":"<p>This paper presents a calculation of the exciting cavity of the klystron taking into account the beam current. The beam current loading and the frequency shifting of the cavity are estimated. The value of the external quality factor for the complete matching of the cavity with the external line taking into account the beam current is obtained. The energy gain by the particles during the flight of the cavity is calculated. An analysis is given for the nonideal matching of the cavity with the external line. The characteristics of the manufactured klystron cavity are discussed. The results of measuring its characteristics with the beam current are presented.</p>","PeriodicalId":730,"journal":{"name":"Physics of Particles and Nuclei Letters","volume":"22 2","pages":"432 - 441"},"PeriodicalIF":0.4,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143944204","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
Direct Measurement of the Neutron Velocity in a Refractive Medium and Test of the Dispersion Law for UCN
IF 0.4
Physics of Particles and Nuclei Letters Pub Date : 2025-05-14 DOI: 10.1134/S1547477124702340
A. I. Frank, G. V. Kulin, M. A. Zakharov
{"title":"Direct Measurement of the Neutron Velocity in a Refractive Medium and Test of the Dispersion Law for UCN","authors":"A. I. Frank,&nbsp;G. V. Kulin,&nbsp;M. A. Zakharov","doi":"10.1134/S1547477124702340","DOIUrl":"10.1134/S1547477124702340","url":null,"abstract":"","PeriodicalId":730,"journal":{"name":"Physics of Particles and Nuclei Letters","volume":"22 2","pages":"316 - 318"},"PeriodicalIF":0.4,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143944302","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
Tritium Activity Concentration Study in Seawater Samples in the Gulf of Tonkin, Vietnam
IF 0.4
Physics of Particles and Nuclei Letters Pub Date : 2025-05-14 DOI: 10.1134/S1547477124702467
Thi Thu Hang Vuong, Trong Ngo Nguyen, Nhu Sieu Le, Dinh Tung Nguyen, Dinh Khoa Tran, Van Phuc Nguyen, Thi Minh Tuyen Le, Tong Thanh Hong Nguyen
{"title":"Tritium Activity Concentration Study in Seawater Samples in the Gulf of Tonkin, Vietnam","authors":"Thi Thu Hang Vuong,&nbsp;Trong Ngo Nguyen,&nbsp;Nhu Sieu Le,&nbsp;Dinh Tung Nguyen,&nbsp;Dinh Khoa Tran,&nbsp;Van Phuc Nguyen,&nbsp;Thi Minh Tuyen Le,&nbsp;Tong Thanh Hong Nguyen","doi":"10.1134/S1547477124702467","DOIUrl":"10.1134/S1547477124702467","url":null,"abstract":"<p>This work presents measurements of the activity concentration of Tritium (<sup>3</sup>H) in seawater samples in the Gulf of Tonkin, Vietnam, using electrolytic enrichment and liquid scintillation counting. Three sites were investigated Tra Co (Quang Ninh Province), Bach Long Vi (Hai Phong Province), and Ky Anh (Ha Tinh Province), from December 2018 to October 2020 with six surveys. The ranges of <sup>3</sup>H radioactivity in seawater at three sites were 1.25–1.74 TU, 1.12–1.65 TU, and 0.99–1.47 TU, with the average values of 1.47, 1.42, and 1.16 TU respectively. The results of the <sup>3</sup>H activity concentrations obtained in the study were in correspondence with the value range of other studies in Vietnam and Asia–Pacific. These values show that the <sup>3</sup>H radioactivity in seawater in the survey area is low and mainly generated from natural processes through fallout.</p>","PeriodicalId":730,"journal":{"name":"Physics of Particles and Nuclei Letters","volume":"22 2","pages":"369 - 373"},"PeriodicalIF":0.4,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143944344","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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