Article
Physics, Nuclear
Lin-Jing Qi, Dong-Meng Zhang, Song Luo, Biao He, Xi-Jun Wu, Xun Chen, Xiao-Hua Li
Summary: In this study, a new Geiger-Nuttall law is proposed to systematically evaluate the half-lives of cluster radioactivity for different nuclei. The calculated results show good agreement with experimental data and outperform other existing methods. The formula is also extended to predict the half-lives of cluster radioactivity for additional nuclei in NUBASE2020.
Article
Physics, Nuclear
Yi-Bin Qian, Zhong-Zhou Ren
Summary: The Geiger-Nuttall law of alpha decay is commonly explained by quantum tunneling, but this study shows that this explanation alone is insufficient to explain alpha particle clustering. By analyzing the coefficients involved in the law, it is revealed that the preformation of alpha clusters and their subsequent penetration play specific roles in the Geiger-Nuttall law. This previously overlooked point is attributed to an interplay between mean-field and pairing effects, shedding light on the structural influence on alpha cluster formation.
Article
Physics, Nuclear
Hong-Ming Liu, You-Tian Zou, Xiao Pan, Jiu-Long Chen, Biao He, Xiao-Hua Li
Summary: In this study, a new two-parameter empirical formula based on the Geiger-Nuttall law is proposed to study two-proton radioactivity. The calculated results are in good agreement with experimental data and results obtained using other theoretical models, demonstrating the effectiveness of the formula in predicting half-lives of 2p radioactivity candidates.
Article
Physics, Nuclear
Omar Nagib, Ahmed M. Hamed
Summary: The Geiger-Nuttall law is the simplest relation in radioactive decay, linking the half-life and decay energy. However, research has shown that it is not possible to unify all nuclei and decay modes under a single set of coefficients through linear approximation, indicating the lack of a universal Geiger-Nuttall law. In attempts at unification, it may be necessary to go beyond the Geiger-Nuttall law and incorporate additional terms proportional to decay energy and/or its square root.
Article
Physics, Nuclear
TianLiang Zhao, HongFei Zhang
Summary: In this study, the alpha decay and cluster radioactivity half-life of nuclei were uniformly calculated. The universal decay law was refitted to account for the minimum angular momentum effect and unpaired nucleon effect. The UDI, formula, and neural network approach for half-life calculations were improved. The UDL formulas and neural network approach were used to predict the cluster radioactivity half-life of actinide nuclei and the decay half-life of superheavy nuclei Z = 117-120. The research aims to contribute to the discovery of new atomic nucleus cluster radioactivity phenomena and theoretical studies of a decay of super-heavy nuclei.
JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
(2022)
Article
Astronomy & Astrophysics
V. Yu. Denisov
Summary: This article discusses the model for the simultaneous emission of two alpha-particles from the opposite sides of the nucleus (double alpha-decay) in detail. The 32 smallest values of the half-lives of double alpha-decay for nuclei are calculated. It is shown that the half-lives of double alpha-decay are much shorter than the emission of 8Be cluster with sequential decay into two alpha-particles. The results suggest that measuring this decay is possible in accelerator experiments by forming proton-rich nuclei.
Article
Physics, Multidisciplinary
V. K. Anjali, K. P. Santhosh
Summary: The α-decay half-lives of W, Re, Os, Ir, and Pt isotopes in the range 157 ≤ A ≤ 193 were studied using the Modified Generalised Liquid Drop Model (MGLDM). The predicted half-lives of some even-even nuclei using the deformed Two Potential Approach (TPA) were also considered for comparison. The results of MGLDM matched well with the TPA predictions and the use of empirical formulae, making it more reliable for calculating the half-lives of newly synthesized and unknown isotopes.
Article
Physics, Multidisciplinary
A. Adel, A. R. Abdulghany
Summary: Proton radioactivity and alpha-decay half-lives of neutron-deficient nuclei have been systematically studied, with a focus on the proton-nucleus interaction potential and density distributions. The study has identified new parameters, successfully reproduced experimental data and verified the applicability of the universal decay law. Experimental confirmation of theoretical calculations indicates satisfactory agreement in the research.
Article
Physics, Nuclear
Chahat Jindal, Nitin Sharma, Manoj K. Sharma
Summary: In this study, the possible radioactive decay modes of the actinide mass region were explored using the preformed cluster model. Different decay channels including alpha decay, cluster radioactivity, heavy particle radioactivity, and spontaneous fission were investigated. The decay half-lives were calculated and compared with theoretical and experimental data. The trends of preformation probability and penetration probability were studied with respect to the mass number of the parent and daughter nuclei. The shape deformation and mass distribution of the fragments were also analyzed, and the most probable fission fragments were identified.
Article
Multidisciplinary Sciences
H. C. Manjunatha, Y. S. Vidya, P. S. Damodara Gupta, N. Sowmya, L. Seenappa, K. N. Sridhar, N. Manjunatha, A. M. Nagaraja, K. Sathish, B. Chinnappa Reddy, M. G. Srinivas
Summary: The study established empirical formulas for the processes of proton decay, beta(+), b decay, and electron capture based on the Geiger-Nuttall law. It was found that the decay processes do not follow a simple linear relationship, but instead adhere to different polynomial rules. The new formulas yielded values closer to experimental results, providing important insights for understanding and predicting nuclear decay.
IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY TRANSACTION A-SCIENCE
(2022)
Article
Astronomy & Astrophysics
Zhaozhan Zhang, Cenxi Yuan, Chong Qi, Boshuai Cai, Xinxing Xu
Summary: In this study, decay width formulae in the extended R-matrix framework are proposed for different decay mechanisms, including sequential 2p decay, diproton decay, tri-body decay, and sequential two-diproton decay. The combination of diproton and tri-body formulae, along with information on two-nucleon transfer amplitude and Wigner single-particle reduced width, can accurately predict experimental 2p radioactivity half-lives. The study also analyzes the combination of direct and sequential 2p emission and identifies 71Sr and 74Zr as promising candidates for future 2p radioactivity research.
Article
Physics, Nuclear
G. Royer, Q. Ferrier, M. Pineau
Summary: The alpha decay, cluster radioactivity, and heavy particle emission half-lives of known and some unknown superheavy nuclei were studied using the Generalized Liquid Drop Model and analytic formulas. The agreement between experimental data and theoretical predictions for alpha decay half-lives of superheavy nuclei is good, and predictions are provided for unknown nuclei.
Article
Physics, Nuclear
Nitin Sharma, Manoj K. Sharma
Summary: A comprehensive study of alpha particle emergence from Po188-218 isotopes is carried out within the framework of the preformed cluster model (PCM). The identification of the most probable decay channel and the barrier penetration of decay fragments are crucially influenced by the mass asymmetry coordinate and the interfragment separation. Alpha decay is found to be the most prominent decay mode in the chosen set of isotopes.
Article
Physics, Nuclear
K. P. Santhosh, Tinu Ann Jose, N. K. Deepak
Summary: This study predicts the possible chances of heavy-cluster emissions for even-even isotopes of (290-304)120 using a modified generalized liquid drop model. The results show that isotopes with magic or semimagic numbers tend to have longer a-decay half-lives. The agreement between theoretical alpha-decay half-lives and experimental values in the Z = 120 decay chains demonstrates the predictability of the model in the superheavy region. The predictions made in this study are important as they can be detected in the near future within experimentally measurable limits.
Article
Nuclear Science & Technology
H. C. Manjunatha, N. Sowmya, P. S. Damodara Gupta, K. N. Sridhar, A. M. Nagaraja, L. Seenappa, S. Alfred Cecil Raj
Summary: New decay modes were identified in superheavy nuclei, including heavy particle emission and beta-plus emitters. Observations of various decay modes, such as Kr-86 emitters and Mo-96 radioactivity, were reported in superheavy nuclei. The study serves as a reference for identifying possible decay modes in the superheavy region.
NUCLEAR SCIENCE AND TECHNIQUES
(2021)
Article
Physics, Nuclear
Hao Lu, Zhongzhou Ren, Dong Bai
Summary: This study focuses on the importance of nucleon-nucleon pairs in neutron star matter, proposing density-dependent nucleon momentum distributions with isospin-asymmetry scaling parameter. The analysis shows that nucleon-nucleon pairs, combined with neutron-proton pairs, could stiffen the equation of state of neutron star matter and increase the maximum mass of neutron stars significantly. This work may provide a new perspective on confronting the upper limit on the maximum mass of neutron stars.
Article
Physics, Multidisciplinary
Hsinchen Yu, Dong Bai, Peishan He, Xiaoping Zhang, Zhongzhou Ren, Qiang Zheng
Summary: In this study, we propose the linearly delayed quantum relativistic Maryland model (LDQRMM) as a novel generalization of the original Maryland model and systematically investigate its physical properties. Our results reveal the emergence of different topological patterns and predict some additions to the Anderson localization in the corresponding tight-binding systems.
Article
Physics, Multidisciplinary
Ziyi Yuan, Dong Bai, Zhen Wang, Zhongzhou Ren, Dongdong Ni
Summary: The density-dependent cluster model (DDCM) is applied to study 2p radioactivity and calculate the half-lives of several 2p emitters. The results show good agreement with experimental data and provide useful predictions for future investigations on 2p radioactivity.
SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
(2023)
Article
Cardiac & Cardiovascular Systems
Ning Zhao, Ying Wang, Yan Ma, Xiaoxue Liang, Xi Zhang, Yuan Gao, Yingying Dong, Dong Bai, Jingqing Hu
Summary: This study assessed the efficacy of the traditional Chinese medicine formulation HJ11 in the treatment of acute coronary syndrome and its impact on the intestinal microbiota and metabolites. The results showed that HJ11 improved cardiac function and attenuated inflammation in rats with acute coronary syndrome. HJ11 was found to regulate gut microbiota composition, alter bacterial metabolites, and improve the therapeutic effects of acute coronary syndrome.
FRONTIERS IN CARDIOVASCULAR MEDICINE
(2023)
Article
Chemistry, Physical
Haoyu Wang, Haitao Yu, Dong Bai, Dan Yao, Yongjun Han, Yichao Shi, Zhiqun Wang
Summary: A ruthenium olefin metathesis catalyst (C1-H) with a novel NHC ligand tethered by an ethoxy-pyridyl arm was synthesized and compared with its methylated derivative (C1-Me). The study showed profound variations in initiation rate, kinetics, metathesis activity, and decomposition behavior between these two catalysts. The remote torsional strain was found to have a considerable influence on the catalytic activity and decomposition behavior of this ligand class.
JOURNAL OF CATALYSIS
(2023)
Article
Plant Sciences
Shan-shan Jie, Hui-juan Sun, Jian-xin Liu, Yan Gao, Dong Bai, Liu-luan Zhu, Hong-yan Zhao, Hui Zeng, Ya-luan Ma
Summary: Traditional Chinese prescription SMYAD has remarkable anti-inflammatory properties and effectively relieves arthritis in rheumatoid arthritis (RA) mice by modulating neutrophil activities.
JOURNAL OF ETHNOPHARMACOLOGY
(2023)
Article
Medicine, General & Internal
Yuanzi Liang, Dong Bai, Wenting Liu, Zhiqun Wang
Summary: Salivary gland tumors, especially pleomorphic adenomas, are mostly benign and occur in middle-aged women. Rarely, they can occur at the root of the tongue. This case report describes a patient with a pleomorphic adenoma at the tongue root, who experienced severe symptoms but recovered well after surgical treatment.
Article
Medicine, Research & Experimental
Tao Shen, Jingchang Chen, Ying Kang, Daming Deng, Xiaoming Lin, Heping Wu, Jinrong Li, Zhonghao Wang, Xuan Qiu, Ling Jin, Jianhua Yan
Summary: This study aims to investigate the long-term effectiveness and natural history of moderate intermittent exotropia (IXT) in children. A total of 280 patients aged 5 to 18 years with moderate IXT will be enrolled and randomized into surgical treatment or observation groups, with a follow-up period of 5 years. The primary objective is to compare the cure rate of IXT between the surgical treatment and observation groups. The study will also aim to identify predictive factors affecting long-term outcomes and observe the natural course of IXT.
Article
Chemistry, Medicinal
Ning Zhao, Yan Ma, Xiaoxue Liang, Yu Zhang, Dacheng Hong, Ying Wang, Dong Bai
Summary: The study aimed to investigate the efficacy of Qianshan Huoxue Gao (QS) in treating acute coronary syndrome (ACS) and explore the mechanism of action through regulation of intestinal flora. The results showed that QS effectively treated ACS and restored regulation of intestinal flora. Ethanolamine (EA) may be the primary metabolite of QS with therapeutic effects in ACS.
DRUG DESIGN DEVELOPMENT AND THERAPY
(2023)
Review
Pharmacology & Pharmacy
Shan Wu, Chuanchi Wang, Dong Bai, Nanjie Chen, Jingqing Hu, Junhua Zhang
Summary: With the introduction of clinical epidemiology and evidence-based medicine, Traditional Chinese Herbal Medicine (TCHM) in China has improved and internationalization of Traditional Chinese Medicine (TCM) has accelerated. Many Chinese drug products have been approved for marketing in other countries, and several Chinese herbal preparations have been investigated in phase III clinical trials. However, international multi-center clinical trials of TCHM are rare and improvement in evaluation techniques and methods that meet international standards and TCHM characteristics is required.
FRONTIERS IN PHARMACOLOGY
(2023)
Article
Immunology
Haoyu Wang, Haitao Yu, Dong Bai, Dan Yao, Yongjun Han, Yichao Shi, Zhiqun Wang
Summary: The objective of this study was to investigate the role of diffusion-weighted imaging (DWI) in the diagnosis and posttreatment assessment of hepatic fungal infection in patients with acute leukemia. The results showed that DWI can provide diffusion information of hepatic fungal infection in patients with acute leukemia, which could be taken as a valuable tool for diagnosis and therapy response assessment of these patients.
IMMUNITY INFLAMMATION AND DISEASE
(2023)
Article
Astronomy & Astrophysics
Dong Bai
Summary: In this Letter, the author investigates spin entanglement properties of neutron-proton scattering using the exact S-matrix. The study considers both S-wave and higher partial wave contributions and explores the dependence of spin entanglement on relative momentum, scattering angle, and initial spin configuration. The results reveal new connections between spin entanglement and symmetry emergence of strong interactions.
Retraction
Neurosciences
Dong Bai, Junting Fan, Mengyue Li, Cuixia Dong, Yiming Gao, Min Fu, Guowei Huang, Huan Liu
JOURNAL OF ALZHEIMERS DISEASE
(2023)
Article
Physics, Nuclear
Dong Bai
Summary: In this study, the quantum information aspects of spin correlations in partially polarized neutron-proton scattering in the S wave were explored. It was found that the spin mutual information, entanglement, and discord of the out-states vary in a similar way with respect to the relative momentum when averaged over the possible in-states. The novel connection between emergent symmetry and spin entanglement discovered in a previous study could be extended to spin correlations beyond entanglement.
Article
Physics, Nuclear
Daming Deng, Zhongzhou Ren, Nan Wang
Summary: The systematics of the alpha-preformation factor (P-alpha) above the Z, N = 50 shell closures is investigated using the dynamical double-folding potential (DDFP) with nuclear medium effect incorporated. The P-alpha factors are deduced from experimental data, and the result shows an unusual behavior compared to the known systematics. The correlations between P-alpha factors and different two-nucleon correlated interactions are analyzed in detail, indicating a likely predominant role played by the proton-neutron correlation in alpha-cluster formation.
EUROPEAN PHYSICAL JOURNAL A
(2023)
Article
Physics, Nuclear
Mira Varma, Oliver K. Baker
Summary: In this letter, the authors expand upon the previous work to demonstrate the entanglement observed in top quark interactions. They propose that the thermal component caused by proton collisions with top quarks emerges from entanglement within the proton wave function, and they use published results to show the expected behavior.
Article
Physics, Nuclear
E. Ya. Paryev
Summary: In this study, we investigate the near-threshold meson photoproduction from protons and nuclei and explore the possibility of observing non-strange hidden-bottom pentaquark states through differential observables. We calculate the excitation functions and energy/momentum distributions for different production processes and propose that future experiments at high-luminosity electron-ion colliders could provide evidence for the existence of these hidden-bottom pentaquark resonances.
Article
Physics, Nuclear
M. Shariq Asnain, Manoj Kumar Sharma, Mohd. Shuaib, Aquib Siddique, Ishfaq Majeed Bhat, B. P. Singh, R. Prasad
Summary: This study validates the compound nucleus theory using heavy ion beams and different targets. By analyzing cross section data and comparing reaction cross section data, the study confirms the validity of the theory, but also observes discrepancies at lower excitation energies.
Article
Physics, Nuclear
Y. G. Yao, X. Y. Wu, H. Mei
Summary: This study presents a microscopic investigation of the electromagnetic properties of the low-lying states of single-A hypernucleus 9ABe using the HyperGCM method based on covariant density functional theory. The results are compared to those of a particle-rotor model (PRM) and show close agreement. It is found that the electric quadrupole transition strengths are more sensitive to the coupling strengths of the AN interaction than the magnetic moments and M 1 transition strengths.
