中国物理C最新文献

{"title":"Theoretical calculations of proton emission half-lives based on a deformed Gamow-like model* * Supported in part by the National Natural Science Foundation of China (12175100, 11975132), the Construct Program of the Key Discipline in Hunan Province, the Research Foundation of Education Bureau of Hunan Province, China (21B0402, 18A237), the Natural Science Foundation of Hunan Province, China (2018JJ2321), the Innovation Group of Nuclear and Particle Physics in USC, the Shandong Province Natural Science Foundation, China (ZR2022JQ04), the Hunan Provincial Innovation Foundation For Postgraduate (CX20220993), and the Opening Project of Cooperative Innovation Center for Nuclear Fuel Cycle Technology and Equipment, University of South China (2019KFZ10).","authors":"Dong-Meng Zhang, Xiao-Yuan Hu, Lin-Jing Qi, Hong-Ming Liu, Ming Li, Xiao-Hua Li","doi":"10.1088/1674-1137/ad243d","DOIUrl":"https://doi.org/10.1088/1674-1137/ad243d","url":null,"abstract":"In this study, proton emission half-lives were investigated for deformed proton emitters with <inline-formula>\u0000<tex-math><?CDATA $ 53leq Z leq 83 $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_4_044102_M1.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> based on the presented deformed Gamow-like model, where the deformation effect was included in the Coulomb potential. The experimental half-lives of proton emitters can be reproduced within a factor of 3.45. For comparison, the results from the universal decay law and the new Geiger-Nuttall law are also presented. Furthermore, the relevance of the half-lives to the angular momentum <italic toggle=\"yes\">l</italic> for ¹¹⁷La, ¹²¹Pr, ¹³⁵Tb, and ¹⁴¹Ho were analyzed, and the corresponding possible values of <italic toggle=\"yes\">l</italic> were proposed: <italic toggle=\"yes\">l </italic>= 3, 3, 4, 4.","PeriodicalId":10250,"journal":{"name":"中国物理C","volume":"31 1","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140311146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Reconstructing parton distribution function based on maximum entropy method* * Supported by Key Project for Undergraduate Teaching Reform and Quality Enhancement Research Plan in Ordinary Colleges and Universities in Tianjin (A231005505)","authors":"Sihan Zhang, Xiaobin Wang, Tao Lin, Lei Chang","doi":"10.1088/1674-1137/ad1b3d","DOIUrl":"https://doi.org/10.1088/1674-1137/ad1b3d","url":null,"abstract":"A new method based on the maximum entropy principle for reconstructing the parton distribution function (PDF) from moments is proposed. Unlike traditional methods, the new method does not require any artificial assumptions. For the case of moments with errors, we introduce Gaussian functions to soften the constraints of moments. Through a series of tests, the effectiveness and reconstruction efficiency of this new method are evaluated comprehensively, demonstrating that this method is reasonable and can achieve high-quality reconstruction with at least the first six moments as input. Finally, we select a set of lattice quantum chromodynamics (QCD) results regarding moments as input and provide reasonable reconstruction results for the pion.","PeriodicalId":10250,"journal":{"name":"中国物理C","volume":"4 1","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140005075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Neutron star core-crust transition and the crustal moment of inertia in the nonlinear relativistic Hartree approximation* * Supported in part by the National Natural Science Foundation of China (11775049, 12375112)","authors":"Niu Li, Si-Na Wei, Rong-Yao Yang, Jing Ye, Wei-Zhou Jiang","doi":"10.1088/1674-1137/ad18d3","DOIUrl":"https://doi.org/10.1088/1674-1137/ad18d3","url":null,"abstract":"We investigate the effects of the <italic toggle=\"yes\">σ</italic> meson mass (<inline-formula>\u0000<tex-math><?CDATA $ m_sigma $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_3_034105_M1.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula>), symmetry energy, and slope of the symmetry energy on the neutron star core-crust transition density and the crustal moment of inertia (<inline-formula>\u0000<tex-math><?CDATA $ Delta I/I $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_3_034105_M2.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula>) in the nonlinear relativistic Hartree approach (RHA), which includes vacuum polarization. Although the core-crust transition density (<inline-formula>\u0000<tex-math><?CDATA $ rho_{t} $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_3_034105_M3.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula>), pressure (<inline-formula>\u0000<tex-math><?CDATA $ P_{t} $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_3_034105_M4.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula>), and neutron star radius (<italic toggle=\"yes\">R</italic>), which are all dependent on the symmetry energy, contribute to determining <inline-formula>\u0000<tex-math><?CDATA $ Delta I/I $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_3_034105_M5.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula>, we find that changing only the slope of symmetry energy within a reasonable range is not sufficient to reach <inline-formula>\u0000<tex-math><?CDATA $Delta I/Igeq7$?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_3_034105_M6.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula>% to achieve the large glitches of the Vela pulsar. However, since all three factors (<inline-formula>\u0000<tex-math><?CDATA $ rho_{t} $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_3_034105_M7.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula>, <inline-formula>\u0000<tex-math><?CDATA $ P_{t} $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_3_034105_M8.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula>, and <italic toggle=\"yes\">R</italic>) increase with the increase in <inline-formula>\u0000<tex-math><?CDATA $ m_sigma $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_3_034105_M9.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> through scalar vacuum polarization, adjusting <inline-formula>\u0000<tex-math><?CDATA $ m_sigma $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_3_034105_M10.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> can easily achieve <inline-formula>\u0000<tex-math><?CDATA $Delta I/Igeq7$?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_3_034105_M11.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula>%.","PeriodicalId":10250,"journal":{"name":"中国物理C","volume":"3 1","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139771635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Wobbling motion for a triaxial rotor plus a single quasiparticle* * Supported by the National Natural Science Foundation of China (12205103, 12175071)","authors":"Si-Hua Li, Hua-Ming Dai, Qi-Bo Chen, Xian-Rong Zhou","doi":"10.1088/1674-1137/ad18d2","DOIUrl":"https://doi.org/10.1088/1674-1137/ad18d2","url":null,"abstract":"Wobbling motion in a system comprising a triaxial rotor and a single quasiparticle is studied employing the particle-rotor model. The energy spectra, wobbling frequencies, electromagnetic transition probabilities, <italic toggle=\"yes\">g</italic>-factors, angular momentum components, spin coherent state maps, and static quadrupole moments are investigated. These investigations were conducted with regard to the Fermi surface transitioning from the lowest <inline-formula>\u0000<tex-math><?CDATA $ h_{11/2} $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_3_034102_M1.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> orbit to the highest one. As the Fermi surface increases, notable transformations occur in the wobbling mode. Initially, the mode exhibits a transverse revolution around the short axis of the nucleus. However, as the Fermi surface continues to increase, the mode gradually shifts to a longitudinal revolution around the intermediate axis. Eventually, it transitions to a transverse revolution around the long axis. Notably, the stability of the long axis transverse mode diminishes relative to its counterpart along the short axis as the total angular momentum increases at <inline-formula>\u0000<tex-math><?CDATA $ gamma=20^circ $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_3_034102_M2.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula>.","PeriodicalId":10250,"journal":{"name":"中国物理C","volume":"97 1","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139771516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Post-Newtonian binary dynamics in the effective field theory of Horndeski gravity* * Supported by National Key Research and Development Program of China (2021YFC2201901) and National Natural Science Foundation of China (12147103, 11851302)","authors":"Wen-Hao Wu, Yong Tang","doi":"10.1088/1674-1137/ad1a0c","DOIUrl":"https://doi.org/10.1088/1674-1137/ad1a0c","url":null,"abstract":"General relativity has been very successful since its proposal more than a century ago. However, various cosmological observations and theoretical consistency still motivate us to explore extended gravity theories. Horndeski gravity stands out as one attractive theory by introducing only one scalar field. Here we formulate the post-Newtonian effective field theory of Horndeski gravity and investigate the conservative dynamics of inspiral compact binary systems. We calculate the leading effective Lagrangian for a compact binary and obtain the periastron advance per period. In particular, we apply our analytical calculation to two binary systems, PSR B 1534+12 and PSR J0737-3039, and constrain the relevant model parameters. This theoretical framework can also be systematically extended to higher orders.","PeriodicalId":10250,"journal":{"name":"中国物理C","volume":"16 1","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140005057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Quasinormal modes and isospectrality of Bardeen (Anti-) de Sitter black holes* * Supported by the the Natural Science Foundation of Hunan Province, China (2022JJ40262), and the National Natural Science Foundation of China (12375046, 12205254)","authors":"Ying Zhao, Wentao Liu, Chao Zhang, Xiongjun Fang, Jiliang Jing","doi":"10.1088/1674-1137/ad1ed8","DOIUrl":"https://doi.org/10.1088/1674-1137/ad1ed8","url":null,"abstract":"Black holes (BHs) exhibiting coordinate singularities but lacking essential singularities throughout the spacetime are referred to as regular black holes (RBHs). The initial formulation of RBHs was presented by Bardeen, who considered the Einstein equation coupled with a nonlinear electromagnetic field. In this study, we investigate the gravitational perturbations, including the axial and polar sectors, of the Bardeen (Anti-) de Sitter black holes. We derive the master equations with source terms for both axial and polar perturbations and subsequently compute the quasinormal modes (QNMs) through numerical methods. For the Bardeen de Sitter black hole, we employ the 6th-order WKB approach. The numerical results reveal that the isospectrality is broken in this case. Conversely, the QNM frequencies are calculated using the HH method for the Bardeen Anti-de Sitter black hole.","PeriodicalId":10250,"journal":{"name":"中国物理C","volume":"100 1","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140005058","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Nonlinear corrections for the nuclear gluon distribution in eA processes","authors":"G.R. Boroun, B. Rezaei, F. Abdi","doi":"10.1088/1674-1137/ad1cdb","DOIUrl":"https://doi.org/10.1088/1674-1137/ad1cdb","url":null,"abstract":"An analytical study with respect to the nonlinear corrections for the nuclear gluon distribution function in the next-to-leading order approximation at small <italic toggle=\"yes\">x</italic> is presented. We consider the nonlinear corrections to the nuclear gluon distribution functions at low values of <italic toggle=\"yes\">x</italic> and <inline-formula>\u0000<tex-math><?CDATA $ Q^{2} $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_3_033107_M1.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> using the parametrization <inline-formula>\u0000<tex-math><?CDATA $ F_{2}(x,Q^{2}) $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_3_033107_M2.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula>and the nuclear modification factors obtained from the Khanpour-Soleymaninia-Atashbar-Spiesberger-Guzey model. The CT18 gluon distribution is used for the baseline proton gluon density at <inline-formula>\u0000<tex-math><?CDATA $ Q_{0}^{2}=1.69; {rm{GeV}}^2 $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_3_033107_M3.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula>. We discuss the behavior of the gluon densities in the next-to-leading order and the next-to-next-to-leading order approximations at the initial scale <inline-formula>\u0000<tex-math><?CDATA $ Q_{0}^{2} $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_3_033107_M4.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula>, as well as the modifications due to the nonlinear corrections. We find that the QCD nonlinear corrections are more significant for the next-to-leading order accuracy than the next-to-next-to-leading order for light and heavy nuclei. The results of the nonlinear GLR-MQ evolution equation are similar to those obtained with the Rausch-Guzey-Klasen gluon upward and downward evolutions within the uncertainties. The magnitude of the gluon distribution with the nonlinear corrections increases with a decrease in <italic toggle=\"yes\">x</italic> and an increase in atomic number A.","PeriodicalId":10250,"journal":{"name":"中国物理C","volume":"11 1","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140005064","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fully-light vector tetraquark states with explicit P-wave via QCD sum rules* * Supported by National Natural Science Foundation (12175068) and Postgraduate Students Innovative Capacity Foundation of Hebei Education Department (CXZZBS2023146)","authors":"Qi Xin, Zhi-Gang Wang","doi":"10.1088/1674-1137/ad181c","DOIUrl":"https://doi.org/10.1088/1674-1137/ad181c","url":null,"abstract":"In this study, we apply the QCD sum rules to investigate the vector fully-light tetraquark states with an explicit &lt;italic toggle=\"yes\"&gt;P&lt;/italic&gt;-wave between the diquark and antidiquark pairs. We observed that the &lt;inline-formula&gt;\u0000&lt;tex-math&gt;&lt;?CDATA $ Cgamma_alphaotimesstackrel{leftrightarrow}{partial}_muotimesgamma^alpha C $?&gt;&lt;/tex-math&gt;\u0000&lt;inline-graphic xlink:href=\"cpc_48_3_033104_M1.jpg\" xlink:type=\"simple\"&gt;&lt;/inline-graphic&gt;\u0000&lt;/inline-formula&gt; (or &lt;inline-formula&gt;\u0000&lt;tex-math&gt;&lt;?CDATA $ Cgamma_alphaotimesstackrel{leftrightarrow}D_muotimesgamma^alpha C $?&gt;&lt;/tex-math&gt;\u0000&lt;inline-graphic xlink:href=\"cpc_48_3_033104_M2.jpg\" xlink:type=\"simple\"&gt;&lt;/inline-graphic&gt;\u0000&lt;/inline-formula&gt;) type current with fully-strange quarks couples potentially to a tetraquark state with a mass &lt;inline-formula&gt;\u0000&lt;tex-math&gt;&lt;?CDATA $ 2.16 pm 0.14 ,{rm{GeV}} $?&gt;&lt;/tex-math&gt;\u0000&lt;inline-graphic xlink:href=\"cpc_48_3_033104_M3.jpg\" xlink:type=\"simple\"&gt;&lt;/inline-graphic&gt;\u0000&lt;/inline-formula&gt;, which supports assigning &lt;inline-formula&gt;\u0000&lt;tex-math&gt;&lt;?CDATA $ Y(2175)/phi(2170) $?&gt;&lt;/tex-math&gt;\u0000&lt;inline-graphic xlink:href=\"cpc_48_3_033104_M4.jpg\" xlink:type=\"simple\"&gt;&lt;/inline-graphic&gt;\u0000&lt;/inline-formula&gt; as the diquark-antidiquark type tetraquark state with &lt;inline-formula&gt;\u0000&lt;tex-math&gt;&lt;?CDATA $J^{PC}=1^{--}$?&gt;&lt;/tex-math&gt;\u0000&lt;inline-graphic xlink:href=\"cpc_48_3_033104_M5.jpg\" xlink:type=\"simple\"&gt;&lt;/inline-graphic&gt;\u0000&lt;/inline-formula&gt;. The &lt;inline-formula&gt;\u0000&lt;tex-math&gt;&lt;?CDATA $ qsbar{q}bar{s} $?&gt;&lt;/tex-math&gt;\u0000&lt;inline-graphic xlink:href=\"cpc_48_3_033104_M6.jpg\" xlink:type=\"simple\"&gt;&lt;/inline-graphic&gt;\u0000&lt;/inline-formula&gt; and &lt;inline-formula&gt;\u0000&lt;tex-math&gt;&lt;?CDATA $ ssbar{s}bar{s} $?&gt;&lt;/tex-math&gt;\u0000&lt;inline-graphic xlink:href=\"cpc_48_3_033104_M7.jpg\" xlink:type=\"simple\"&gt;&lt;/inline-graphic&gt;\u0000&lt;/inline-formula&gt; vector tetraquark states with the structure &lt;inline-formula&gt;\u0000&lt;tex-math&gt;&lt;?CDATA $ Cgamma_muotimes stackrel{leftrightarrow}{partial}_alpha otimesgamma^alpha C + Cgamma^alpha otimesstackrel{leftrightarrow}{partial}_alpha otimesgamma_mu $?&gt;&lt;/tex-math&gt;\u0000&lt;inline-graphic xlink:href=\"cpc_48_3_033104_M8.jpg\" xlink:type=\"simple\"&gt;&lt;/inline-graphic&gt;\u0000&lt;/inline-formula&gt; (or &lt;inline-formula&gt;\u0000&lt;tex-math&gt;&lt;?CDATA $ Cgamma_muotimes stackrel{leftrightarrow}D_alpha otimesgamma^alpha C + Cgamma^alpha otimesstackrel{leftrightarrow}D_alpha otimesgamma_mu $?&gt;&lt;/tex-math&gt;\u0000&lt;inline-graphic xlink:href=\"cpc_48_3_033104_M9.jpg\" xlink:type=\"simple\"&gt;&lt;/inline-graphic&gt;\u0000&lt;/inline-formula&gt;) are consistent with &lt;inline-formula&gt;\u0000&lt;tex-math&gt;&lt;?CDATA $ X(2200) $?&gt;&lt;/tex-math&gt;\u0000&lt;inline-graphic xlink:href=\"cpc_48_3_033104_M10.jpg\" xlink:type=\"simple\"&gt;&lt;/inline-graphic&gt;\u0000&lt;/inline-formula&gt; and &lt;inline-formula&gt;\u0000&lt;tex-math&gt;&lt;?CDATA $ X(2400) $?&gt;&lt;/tex-math&gt;\u0000&lt;inline-graphic xlink:href=\"cpc_48_3_033104_M11.jpg\" xlink:type=\"simple\"&gt;&lt;/inline-graphic&gt;\u0000&lt;/inline-formula&gt;, respectively, which lie in the region from &lt;inline-formula&gt;\u0000&lt;tex-math&gt;&lt;?CDATA $ 2.20 $?&gt;&lt;/tex-math&gt;\u0000&lt;inline-graphic xlink:href=\"cpc_48_3_033104_M12.jpg\" xlink:type=\"simple\"&gt;&lt;/inline-graphic&gt;\u0000&lt;/inline-formula&gt; to &lt;inline-formula&gt;\u0000&lt;tex","PeriodicalId":10250,"journal":{"name":"中国物理C","volume":"26 1","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139771640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Interaction of photons with silver and indium nuclei at energies up to 20 MeV* * The authors express their gratitude to the team of the LINAC-200 electron accelerator and the management of the Joint Institute for Nuclear Research for their support in conducting the experiments.","authors":"J. H. Khushvaktov, M. A. Demichev, D. L. Demin, S. A. Evseev, M. I. Gostkin, V. V. Kobets, F. A. Rasulova, S. V. Rozov, E. T. Ruziev, A. A. Solnyshkin, T. N. Tran, E. A. Yakushev, B. S. Yuldashev","doi":"10.1088/1674-1137/ad1028","DOIUrl":"https://doi.org/10.1088/1674-1137/ad1028","url":null,"abstract":"The yields of photonuclear reactions in the ¹⁰⁷Ag, ¹¹³In, and ¹¹⁵In nuclei were measured. Monte Carlo simulations were performed using the Geant4 code, and the results were compared with the experimental values. The isomeric ratios of the yields in the reactions ¹⁰⁷Ag(<italic toggle=\"yes\">γ</italic>, <italic toggle=\"yes\">n</italic>)^{106<italic toggle=\"yes\">m</italic>,<italic toggle=\"yes\">g</italic>\u0000}Ag and ¹¹³In(<italic toggle=\"yes\">γ</italic>, <italic toggle=\"yes\">n</italic>)^{112<italic toggle=\"yes\">m</italic>,<italic toggle=\"yes\">g</italic>\u0000}In were determined, and the cross sections for the reactions ¹⁰⁷Ag(<italic toggle=\"yes\">γ</italic>, <italic toggle=\"yes\">n</italic>)^{106<italic toggle=\"yes\">g</italic>\u0000}Ag and ¹⁰⁷Ag(<italic toggle=\"yes\">γ</italic>, 2<italic toggle=\"yes\">n</italic>)¹⁰⁵Ag at an energy of 20 MeV were calculated based on the experimental data.","PeriodicalId":10250,"journal":{"name":"中国物理C","volume":"197 1","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139507021","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Resonant contribution of the three-body decay process in perturbative QCD* * Supported by the Natural Science Foundation of Henan Province, China (232300420115).","authors":"Gang Lü, Chang-Chang Zhang, Yan-Lin Zhao, Li-Ying Zhang","doi":"10.1088/1674-1137/ad0e03","DOIUrl":"https://doi.org/10.1088/1674-1137/ad0e03","url":null,"abstract":"We investigate <italic toggle=\"yes\">CP</italic> violation in the decay process <inline-formula>\u0000<tex-math><?CDATA $ bar B_{s} rightarrow phi(rho,omega) P rightarrow K^{+}K^{-}P $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_1_013103_M2.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> by considering the interference effects of <inline-formula>\u0000<tex-math><?CDATA $ phirightarrow K^{+}K^{-} $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_1_013103_M3.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula>, <inline-formula>\u0000<tex-math><?CDATA $ rhorightarrow K^{+}K^{-} $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_1_013103_M4.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula>, and <inline-formula>\u0000<tex-math><?CDATA $ omegarightarrow K^{+}K^{-} $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_1_013103_M5.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula>within the framework of the perturbative QCD method (<italic toggle=\"yes\">P</italic> refers to <italic toggle=\"yes\">π</italic>, <italic toggle=\"yes\">K</italic>, <italic toggle=\"yes\">η</italic>, and <inline-formula>\u0000<tex-math><?CDATA $ eta' $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_1_013103_M6.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> pseudoscalar mesons). We analyze the mixings of <inline-formula>\u0000<tex-math><?CDATA $ phi-rho^{0} $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_1_013103_M7.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula>, <inline-formula>\u0000<tex-math><?CDATA $ phi-omega $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_1_013103_M8.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula>, and <inline-formula>\u0000<tex-math><?CDATA $ omega-rho^{0} $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_1_013103_M9.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> and provide the amplitudes of the quasi-two-body decay processes. The <italic toggle=\"yes\">CP</italic> violation for the <inline-formula>\u0000<tex-math><?CDATA $ bar B_{s} rightarrow K^{+}K^{-} P $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_1_013103_M10.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> decay process is obvious in the ranges of the three vector meson interferences. Meanwhile, the localized <italic toggle=\"yes\">CP</italic> violation can be found to compare with the experimental results from the three-body decay process at the LHC in the near future.","PeriodicalId":10250,"journal":{"name":"中国物理C","volume":"79 1","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139095537","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}