Chinese Physics C最新文献

Photonuclear reactions on 59Co at bremsstrahlung end-point energies of 40–130 MeV 轫致辐射端点能量为 40-130 兆电子伏时 59Co 的光核反应

Chinese Physics C Pub Date : 2024-08-08 DOI: 10.1088/1674-1137/ad6d41

F. Rasulova, J. Khushvaktov, Alexander Kuznetsov, Toan Tran, Sergey Evseev, Vladimir Kobets, Sergey Rozov, E. Ruziev, Bekhzod Yuldashev, D. L. Demin, Mikhail Demichev, M. Gostkin, Evgeniy Yakushev, A. Solnyshkin, Sergey Belyshev, N. Fursova

引用次数: 0

Estimating the production of dark photons with $eta$ decay in high-energy collisions 在高能碰撞中估算暗光子的$eta$衰变产生量

Chinese Physics C Pub Date : 2024-07-25 DOI: 10.1088/1674-1137/ad6752

Wei Kou, Xurong Chen

引用次数: 0

New measurement of the neutron-induced total cross-sections of natCr in a wide energy range on the Back-n at CSNS 在 CSNS 的 Back-n 上对 natCr 在宽能量范围内的中子诱导总截面进行的新测量

Chinese Physics C Pub Date : 2024-07-24 DOI: 10.1088/1674-1137/ad66c0

Baoqian Li, Min Xiao, Yonghao Chen, Jie-Ming Xue, Xinxiang Li, Han Yi, Pin-Jing Cheng, Rong Liu, Yiwei Yang, Z. Han, Da-Jun Zhao, Haoqiang Wang, Jirong Zhao, Peng Luan, Jing Liu, Zijun Liu, Chaomin Chen, Wen Luo, Bo Zheng, Song Feng

{"title":"New measurement of the neutron-induced total cross-sections of natCr in a wide energy range on the Back-n at CSNS","authors":"Baoqian Li, Min Xiao, Yonghao Chen, Jie-Ming Xue, Xinxiang Li, Han Yi, Pin-Jing Cheng, Rong Liu, Yiwei Yang, Z. Han, Da-Jun Zhao, Haoqiang Wang, Jirong Zhao, Peng Luan, Jing Liu, Zijun Liu, Chaomin Chen, Wen Luo, Bo Zheng, Song Feng","doi":"10.1088/1674-1137/ad66c0","DOIUrl":"https://doi.org/10.1088/1674-1137/ad66c0","url":null,"abstract":"\u0000 The neutron total cross-section of natCr plays a crucial role in new nuclear engineer design and fundamental science. A new measurement of neutron-induced total cross-sections of natCr has been performed using the transmission method on the back-streaming white neutron beamline (Back-n) at the China Spallation Neutron Source (CSNS). Neutron energy was determined using the time-of-flight technique. The neutron total cross-sections of natCr have been obtained across an exceptionally broad energy range (0.3 eV-20 MeV) with one experiment for the first time. The resulting effective total cross-sections has been compared with the existing experimental data in different energy ranges, and a good agreement with the evaluated libraries has been found. Theoretical calculation of the total cross-section in the energy range of 1.5 MeV to 20 MeV has been conducted using the TALYS-1.96 and compared with the present results. The measurement provides a high-quality total cross-section of natCr including detailed uncertainty data across a wide energy range, offering a valuable reference for nuclear data re-evaluating and nuclear engineering design.","PeriodicalId":504778,"journal":{"name":"Chinese Physics C","volume":"11 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141806426","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

Cosmological constraints on the background dynamics of a two-field nonsingular bounce model 双场非奇异反弹模型背景动力学的宇宙学约束

Chinese Physics C Pub Date : 2024-07-23 DOI: 10.1088/1674-1137/ad6669

Kang Song Ri, Sin Chol Hwang, Hyon Chol Ri

引用次数: 0

The Effects of Torsion Charge on Optical Appearances and Additional Photon Rings of an Asymmetric Thin-Shell Wormhole 扭转电荷对不对称薄壳虫洞光学外观和附加光子环的影响

Chinese Physics C Pub Date : 2024-07-23 DOI: 10.1088/1674-1137/ad666c

Qi-Qin 景琪钦 Jing, Ke-Jian He, Zhi 罗智 Luo

引用次数: 0

Investigating the level structure of 206Rn: evolution from seniority regime to collective dynamics 调查 206Rn 的级别结构：从资历制度到集体动力的演变

Chinese Physics C Pub Date : 2024-07-23 DOI: 10.1088/1674-1137/ad666a

Rui Guo, Lihua Zhu, Jingbin Lu, G. Fu, meng(萌) Wang(王), B. Sun, G. Zhang, Zhen(臻) Ren(任), Yi Heng Wu, Yun Zheng, Chuang-Ye 贺创业 He, Jin-Long Wang, Xiaoguang Wu, Shun He(顺和) Yao(姚)

引用次数: 0

Investigation of decay mechanisms and associated aspects of exotic Nobeliumisotopes using the Skyrme energy density formalism 利用 Skyrme 能量密度形式主义研究奇异锘同位素的衰变机制和相关问题

Chinese Physics C Pub Date : 2024-07-22 DOI: 10.1088/1674-1137/ad65dd

Shubhpreet Kaur, Raj Kumar, Manoj K. Sharma

{"title":"Investigation of decay mechanisms and associated aspects of exotic Nobeliumisotopes using the Skyrme energy density formalism","authors":"Shubhpreet Kaur, Raj Kumar, Manoj K. Sharma","doi":"10.1088/1674-1137/ad65dd","DOIUrl":"https://doi.org/10.1088/1674-1137/ad65dd","url":null,"abstract":"\u0000 Persistent theoretical and experimental attempts have been made to investigate the heavy ion induced reactions and their subsequent decay mechanisms in superheavy mass region. In addition, the region of transfermium elements is itself of great interest because of the neutron / proton shell effects. Here, we aim to study the subsequent decay mechanisms of two isotopes of Z = 102 nucleus, i.e. 248No and 250No. The dynamical cluster-decay model (DCM) based on Quantum Mechanical Fragmen- tation Theory (QMFT), is employed to conduct a comprehensive analysis of compound nucleus (CN) and non-compound nucleus (nCN) mechanisms such as fusion-fission (ff), Quasi fission (QF) and fast fission (FF), the role of centre of mass energy (Ec.m.) and angular momentum (ℓ) for 248No and 250No isotopes. The nuclear interaction potential is obtained using the Skyrme energy density formalism (SEDF) in the domain of GSkI force parameters. The probability of compound nucleus formation (PCN ) is determined using a function that depends on the centre of mass energy. The lifetimes for the fusion-fission (ff) quasi fission (QF) channels are explored. Here, CN and nCN decay mechanisms for two isotopes of Z = 102 nobelium are studied over the wide range of centre-of-mass (Ec.m.) by including the quadrupole deformation (β2) and optimum orientations (θopt.) of decaying fragments. The fragmentation potential, preformation probability, neck length parameter and reaction cross-sections are explored. Further, the calcula- tions are done for PCN in order to identify the decay modes of 248No and 250No isotopes. The fusion-fission lifetimes and quasi fission lifetimes are compared with the dinuclear system (DNS) approach. The most probable fragments such as 122Sn and 128T e are observed near to the magic shell closure Z = 50 and N = 82. The ff and qf lifetime decreases with increase in the excitation energy.","PeriodicalId":504778,"journal":{"name":"Chinese Physics C","volume":"29 27","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141814032","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

Isotropization of the magnetic universe in the Horndeski theory with $G_3(X,phi)$ and $G_5(X)$ 霍恩德斯基理论中具有 $G_3(X,phi)$ 和 $G_5(X)$ 的磁性宇宙的等向化性

Chinese Physics C Pub Date : 2024-07-22 DOI: 10.1088/1674-1137/ad65de

R. Muharlyamov, T. Pankratyeva, Shehabaldeen O. A. Bashir

引用次数: 0

Tidal force effects and bound orbits in null naked singularity spacetime 空裸奇点时空中的潮汐力效应和约束轨道

Chinese Physics C Pub Date : 2024-07-19 DOI: 10.1088/1674-1137/ad654f

Parth Bambhaniya, Siddharth Madan

{"title":"Tidal force effects and bound orbits in null naked singularity spacetime","authors":"Parth Bambhaniya, Siddharth Madan","doi":"10.1088/1674-1137/ad654f","DOIUrl":"https://doi.org/10.1088/1674-1137/ad654f","url":null,"abstract":"\u0000 Naked singularities form during the gravitational collapse of inhomogeneous matter clouds. The final nature of the singularity depends on the initial conditions of the matter properties and types of matter profiles. These naked singularities can also be divided into two types: null-like and timelike singularities. The spacelike singularity of the Schwarzschild black hole can be distinguished from the null and timelike naked singularity spacetimes. In light of this, we investigate the precession of timelike bound orbits in the null naked singularity spacetime, as well as tidal force effects and geodesic deviation features. As a result, we find that the orbital precession of the timelike bound orbits in null naked singularity spacetime could be distinguished from the Schwarzschild precession case. The radial component of the tidal force has an intriguing profile, whereas the angular component has a profile which is comparable to that of a Schwarzschild black hole scenario. The geodesic deviation equation is then solved numerically, yielding results that resemble a Schwarzschild black hole. These characteristic features can then be used to discern amongst these singularities.","PeriodicalId":504778,"journal":{"name":"Chinese Physics C","volume":" May","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141824090","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

Warm Inflation Triggered by Entropies of Some Recent Dark Energy Models within $f(Q)$ Gravity 近期一些暗能量模型在 $f(Q)$ 引力范围内的熵引发的暖膨胀

Chinese Physics C Pub Date : 2024-07-19 DOI: 10.1088/1674-1137/ad654e

R. Saleem, Muhammad Hamza Rasool, M. Aslam, Iqra Shahid

引用次数: 0