Chinese Physics C最新文献

{"title":"Strong decays of the P c(4312) and its isospin cousin via the QCD sum rules* * Supported by the National Natural Science Foundation (12175068) and the Fundamental Research Funds for the Central Universities of China","authors":"Xiu-Wu Wang, Zhi-Gang Wang","doi":"10.1088/1674-1137/ad2442","DOIUrl":"https://doi.org/10.1088/1674-1137/ad2442","url":null,"abstract":"In this study, considering the conservation of isospin in the strong decays, we investigate the strong decays of the pentaquark molecule candidate <inline-formula>\u0000<tex-math><?CDATA $ P_c(4312) $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_053102_M2.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> and its possible higher isospin cousin <inline-formula>\u0000<tex-math><?CDATA $ P_c(4330) $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_053102_M3.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> in the framework of the QCD sum rules. Further, the pole residue of the Δ baryon with isospin eigenstate <inline-formula>\u0000<tex-math><?CDATA $ |II_3rangle=|frac{3}{2}frac{1}{2}rangle $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_053102_M4.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> is obtained. If the possible pentaquark molecule candidate <inline-formula>\u0000<tex-math><?CDATA $ P_c(4330) $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_053102_M5.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> could be determined, it would shed light on the interpretations of the <inline-formula>\u0000<tex-math><?CDATA $ P_c $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_053102_M6.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> states in future experiments.","PeriodicalId":10250,"journal":{"name":"Chinese Physics C","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140586815","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":"Molecular components in J/ψ and ρ-π puzzle* * Supported by National Natural Science Foundation of China (11805160, 11747040, 11675082) and Qinglan Project of Jiangsu Province in 2021","authors":"Xing-Dao Guo, Dian-Yong Chen, Xue-Qian Li, Zhong-Yuan Yuan, Shijing Sang","doi":"10.1088/1674-1137/ad2a65","DOIUrl":"https://doi.org/10.1088/1674-1137/ad2a65","url":null,"abstract":"Motivated by the large branching fractions of <inline-formula>\u0000<tex-math><?CDATA $ J/psi to f_0 (1710) omega/f_0(1710) phi $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_053110_M1.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> and the light exotic candidates, we found that there may exist molecular states composed of <inline-formula>\u0000<tex-math><?CDATA $ f_0(1710) omega $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_053110_M2.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> and <inline-formula>\u0000<tex-math><?CDATA $ f_0 (1710) phi $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_053110_M3.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula>, which correspond to <inline-formula>\u0000<tex-math><?CDATA $ X(2440) $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_053110_M4.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> and <inline-formula>\u0000<tex-math><?CDATA $ X(2680) $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_053110_M5.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> observed a few decades ago. The branching fractions of <inline-formula>\u0000<tex-math><?CDATA $ X(2440) $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_053110_M6.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> and <inline-formula>\u0000<tex-math><?CDATA $ X(2680) $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_053110_M7.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula>to various <inline-formula>\u0000<tex-math><?CDATA $ PV $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_053110_M8.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> and <inline-formula>\u0000<tex-math><?CDATA $ KKomega(phi) $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_053110_M9.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> channels were estimated in the molecular scenario. In addition, the large branching fractions of <inline-formula>\u0000<tex-math><?CDATA $ J/psi to f_0 (1710) omega/f_0(1710) phi $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_053110_M10.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> indicate sizable molecular components in the <inline-formula>\u0000<tex-math><?CDATA $ J/psi $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_053110_M11.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> state. Thus, we consider <inline-formula>\u0000<tex-math><?CDATA $ J/psi $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_053110_M12.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula>as the superposition of the<inline-formula>\u0000<tex-math><?CDATA $ cbar{c}(1S) $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_053110_M13.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula>, <inline-formula>\u0000<tex-math><?CDATA $ f_0(1710) omega $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_053110_M14.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula>, and <inline-formula>\u0000<tex-math><?CDATA $ f_0 (1710) phi $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_053110_M15.jp","PeriodicalId":10250,"journal":{"name":"Chinese Physics C","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140805109","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":"Gravitational form factors of the proton from near-threshold vector meson photoproduction* * Supported by the National Natural Science Foundation of China (12065014, 12247101) and the Natural Science Foundation of Gansu province (22JR5RA266). We acknowledge the West Light Foundation of the Chinese Academy of Sciences (21JR7RA201)","authors":"Xiao-Yun Wang, Fancong Zeng, Jiyuan Zhang","doi":"10.1088/1674-1137/ad2a66","DOIUrl":"https://doi.org/10.1088/1674-1137/ad2a66","url":null,"abstract":"We systematically analyze the quark and gluon gravitational form factors (GFFs) of the proton by connecting the energy-momentum tensor and near-threshold vector meson photoproduction (NTVMP). Specifically, the quark contributions of GFFs are determined by applying global fitting to the cross section of the lightest vector meson <inline-formula>\u0000<tex-math><?CDATA $ rho^0 $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_054102_M1.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> photoproduction. Combined with the gluon GFFs obtained from heavy quarkonium <inline-formula>\u0000<tex-math><?CDATA $ J/psi $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_054102_M2.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> photoproduction data, the complete GFFs are obtained and compared with the experimental results and lattice quantum chromodynamics determinations. In addition, we use the resonance via Padé (RVP) method based on the Schlessinger point method to obtain a model-independent quark <italic toggle=\"yes\">D</italic>-term distribution through direct analytical continuation of deeply virtual Compton scattering experimental data. If errors are considered, the results obtained with RVP are essentially consistent with those obtained by NTVMP. Moreover, the comprehensive information on GFFs helps to uncover the mass distribution and mechanical properties inside the proton. This study is not only an important basis for delving into the enigmatic properties of the proton, but also has significance for theoretically guiding future JLab and EIC experimental measurements.","PeriodicalId":10250,"journal":{"name":"Chinese Physics C","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140805054","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":"A scheme to fix multiple solutions in amplitude analyses* * Supported by the National Natural Science Foundation of China (NSFC) (12061141007, 12175005) and by the National Key R&D Program of China (2022YFA1601904)","authors":"Yuanning Gao, Tianze Rong, Zhenwei Yang, Chenjia Zhang, Yanxi Zhang","doi":"10.1088/1674-1137/ad2674","DOIUrl":"https://doi.org/10.1088/1674-1137/ad2674","url":null,"abstract":"Decays of unstable heavy particles usually involve the coherent sum of several amplitudes, like in a multiple slit experiment. Dedicated amplitude analysis techniques have been widely used to resolve these amplitudes for better understanding of the underlying dynamics. In special cases where two spin-1/2 particles and two (pseudo-) scalar particles are present in the process, multiple equivalent solutions are found owing to intrinsic symmetries in the summed probability density function. In this study, the problem of multiple solutions is discussed, and a scheme to overcome this problem is proposed by fixing some free parameters. Toys are generated to validate the strategy. A new approach to align the helicities of initial- and final-state particles in different decay chains is also introduced.","PeriodicalId":10250,"journal":{"name":"Chinese Physics C","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140586816","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":"Different coalescence sources of light nucleus production in Au-Au collisions at GeV* * Supported in part by the National Natural Science Foundation of China (12175115,12375074), the Natural Science Foundation of Shandong Province, China (ZR2020MA097), and the Higher Educational Youth Innovation Science and Technology Program of Shandong Province, China (2020KJJ004, 2019KJJ010)","authors":"Rui-Qin Wang, Ji-Peng Lv, Yan-Hao Li, Jun Song, Feng-Lan Shao","doi":"10.1088/1674-1137/ad2b56","DOIUrl":"https://doi.org/10.1088/1674-1137/ad2b56","url":null,"abstract":"We study the production of light nuclei in the coalescence mechanism of Au-Au collisions at midrapidity at <inline-formula>\u0000<tex-math><?CDATA $ sqrt{s_{NN}}=3 $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_053112_M2.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula>GeV. We derive analytic formulas of the momentum distributions of two bodies, three bodies, and four nucleons coalescing into light nuclei and naturally explain the transverse momentum spectra of the deuteron (<italic toggle=\"yes\">d</italic>), triton (<italic toggle=\"yes\">t</italic>), helium-3 (³He), and helium-4 (⁴He). We reproduce data on the yield rapidity densities, yield ratios, and averaged transverse momenta of <italic toggle=\"yes\">d</italic>, <italic toggle=\"yes\">t</italic>, ³He, and ⁴He and provide the proportions of contributions from different coalescence sources for <italic toggle=\"yes\">t</italic>, ³He, and ⁴He in their production. We find that besides nucleon coalescence, nucleon+nucleus coalescence and nucleus+nucleus coalescence may play requisite roles in light nucleus production in Au-Au collisions at <inline-formula>\u0000<tex-math><?CDATA $ sqrt{s_{NN}}=3 $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_053112_M3.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> GeV.","PeriodicalId":10250,"journal":{"name":"Chinese Physics C","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140805110","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":"Refined symmetry-resolved Page curve and charged black holes* * Supported in part by the Natural Science Foundation of China (12035016, 12275275). It is also supported by the Beijing Natural Science Foundation (1222031) and the Innovative Projects of Science and Technology ( E2545BU210) at IHEP.","authors":"Pan Li, Yi Ling","doi":"10.1088/1674-1137/ad2e83","DOIUrl":"https://doi.org/10.1088/1674-1137/ad2e83","url":null,"abstract":"The Page curve plotted using the typical random state approximation is not applicable to a system with conserved quantities, such as the evaporation process of a charged black hole, during which the electric charge does not macroscopically radiate out with a uniform rate. In this context, the symmetry-resolved entanglement entropy may play a significant role in describing the entanglement structure of such a system. We attempt to impose constraints on microscopic quantum states to match the macroscopic phenomenon of charge radiation during black hole evaporation. Specifically, we consider a simple qubit system with conserved spin/charge serving as a toy model for the evaporation of charged black holes. We propose refined rules for selecting a random state with conserved quantities to simulate the distribution of charges during the different stages of evaporation and obtain refined Page curves that exhibit distinct features in contrast to the original Page curve. We find that the refined Page curve may have a different Page time and exhibit asymmetric behavior on both sides of the Page time. Such refined Page curves may provide a more realistic description for the entanglement between the charged black hole and radiation during the evaporation process.","PeriodicalId":10250,"journal":{"name":"Chinese Physics C","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140805023","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":"Precise determination of the top-quark on-shell mass via its scale- invariant perturbative relation to the top-quark mass * * Supported in part by the National Natural Science Foundation of China (12247129, 12175025, 12347101) and the Graduate Research and Innovation Foundation of Chongqing, China (ydstd1912)","authors":"Xu-Dong Huang, Xing-Gang Wu, Xu-Chang Zheng, Jiang Yan, Zhi-Fei Wu, Hong-Hao Ma","doi":"10.1088/1674-1137/ad2dbf","DOIUrl":"https://doi.org/10.1088/1674-1137/ad2dbf","url":null,"abstract":"The principle of maximum conformality (PMC) provides a systematic approach to solve the conventional renormalization scheme and scale ambiguities. Scale-fixed predictions of physical observables using the PMC are independent of the choice of renormalization scheme – a key requirement for renormalization group invariance. In this paper, we derive new degeneracy relations based on the renormalization group equations that involve both the usual <italic toggle=\"yes\">β</italic>-function and the quark mass anomalous dimension <inline-formula>\u0000<tex-math><?CDATA $ gamma_m $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_053113_M4.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula>-function. These new degeneracy relations enable improved PMC scale-setting procedures for correct magnitudes of the strong coupling constant and <inline-formula>\u0000<tex-math><?CDATA $ overline{{rm{MS}}} $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_053113_M5.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula>-running quark mass to be determined simultaneously. By using these improved PMC scale-setting procedures, the renormalization scale dependence of the <inline-formula>\u0000<tex-math><?CDATA $ overline{{rm{MS}}} $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_053113_M6.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula>-on-shell quark mass relation can be eliminated systematically. Consequently, the top-quark on-shell (or <inline-formula>\u0000<tex-math><?CDATA $ overline{{rm{MS}}} $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_053113_M7.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula>) mass can be determined without conventional renormalization scale ambiguity. Taking the top-quark <inline-formula>\u0000<tex-math><?CDATA $ overline{{rm{MS}}} $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_053113_M8.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> mass <inline-formula>\u0000<tex-math><?CDATA $ {overline m}_t({overline m}_t)=162.5^{+2.1}_{-1.5} $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_053113_M9.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> GeV as the input, we obtain <inline-formula>\u0000<tex-math><?CDATA $ M_tsimeq 172.41^{+2.21}_{-1.57} $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_053113_M10.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> GeV. Here, the uncertainties arise from errors combined with those from <inline-formula>\u0000<tex-math><?CDATA $ Delta alpha_s(M_Z) $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_053113_M11.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> and the approximate uncertainty resulting from the uncalculated five-loop terms predicted through the Padé approximation approach.","PeriodicalId":10250,"journal":{"name":"Chinese Physics C","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140805051","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":"Study of the topological quantities of lattice QCD using a modified DCGAN frame","authors":"Lin Gao, Heping Ying, Jianbo Zhang","doi":"10.1088/1674-1137/ad2b51","DOIUrl":"https://doi.org/10.1088/1674-1137/ad2b51","url":null,"abstract":"A modified deep convolutional generative adversarial network (M-DCGAN) frame is proposed to study the N-dimensional (ND) topological quantities in lattice QCD based on Monte Carlo (MC) simulations. We construct a new scaling structure including fully connected layers to support the generation of high-quality high-dimensional images for the M-DCGAN. Our results suggest that the M-DCGAN scheme of machine learning will help to more efficiently calculate the 1D distribution of topological charge and the 4D topological charge density compared with MC simulation alone.","PeriodicalId":10250,"journal":{"name":"Chinese Physics C","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140805053","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":"Bubble nucleation in the two-flavor quark-meson model* * Supported in part by the National Natural Science Foundation of China (NSFC) (11675048)","authors":"Junrong Wang, Ziwan Yu, Hong Mao","doi":"10.1088/1674-1137/ad2a4b","DOIUrl":"https://doi.org/10.1088/1674-1137/ad2a4b","url":null,"abstract":"We investigate the dynamics of a first-order quark-hadron transition via homogeneous thermal nucleation in the two-flavor quark-meson model. The contribution of the fermionic vacuum loop in the effective thermodynamics potential and phase diagram, together with the location of the critical endpoint (CEP), is obtained in the temperature and chemical potential plane. For weak and strong first-order phase transitions, by taking the temperature as a variable, the critical bubble profiles, evolutions of the surface tension, and saddle-point action in the presence of a nucleation bubble are numerically calculated in detail when fixing the chemical potentials at <inline-formula>\u0000<tex-math><?CDATA $mu=306~ mathrm{MeV}$?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_053105_M1.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> and <inline-formula>\u0000<tex-math><?CDATA $mu=309 ~mathrm{MeV}$?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_053105_M2.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula>. Our results show that the system could be trapped in the metastable state for a long time as long as the temperature is between the metastable region characterized by the up and low spinodal lines. Moreover, the surface tension at criticality will rise to approximately <inline-formula>\u0000<tex-math><?CDATA $4~ mathrm{MeV/fm^2}$?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_053105_M3.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> when the chemical potential is very high. Such a small surface tension value would favor a mixed phase in the cores of compact stars and may have an important implication in astrophysics.","PeriodicalId":10250,"journal":{"name":"Chinese Physics C","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140586746","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":"Production of charmonium pentaquarks from b-baryon and B-meson decays: SU(3) analysis* * W. H. H and J. X. is supported in part by the National Natural Science Foundation of China (12105247), the China Postdoctoral Science Foundation (2021M702957). Y.X is supported in part by the National Natural Science Foundation of China (12005294)","authors":"Wei-Hao Han, Ye Xing, Ji Xu","doi":"10.1088/1674-1137/ad24d1","DOIUrl":"https://doi.org/10.1088/1674-1137/ad24d1","url":null,"abstract":"Here, we study the production of charmonium pentaquarks <inline-formula>\u0000<tex-math><?CDATA $ c bar c q q q $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_053106_M1.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> from bottom baryon and <italic toggle=\"yes\">B</italic>-meson decays under the flavor <inline-formula>\u0000<tex-math><?CDATA $S U(3) $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_053106_Z-20240229104014.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> symmetry. Decay amplitudes for various processes are parameterized in terms of <inline-formula>\u0000<tex-math><?CDATA $S U(3) $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_053106_Z-20240229104040.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> irreducible nonperturbative amplitudes. Numerous relations between decay widths are deduced. Moreover, the strong decays of pentaquarks are considered. Our results can be tested in future measurements at LHCb, Belle II, and CEPC. Once decay branching fractions are measured, this study will be useful for the exploration of new decay channels and pentaquark states.","PeriodicalId":10250,"journal":{"name":"Chinese Physics C","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140586918","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}