Chinese Physics C最新文献

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Chaplygin Gas Inspired Warm Inflation and Swampland Conjecture Through Various Scalar Potentials 通过各种标量势的查普利金气体启发的暖膨胀和沼泽地猜想
IF 3.6 2区 物理与天体物理
Chinese Physics C Pub Date : 2024-05-16 DOI: 10.1088/1674-1137/ad4c58
abdul jawad, Shama Sadiq, Nadeem Azhar, S. Rani
{"title":"Chaplygin Gas Inspired Warm Inflation and Swampland Conjecture Through Various Scalar Potentials","authors":"abdul jawad, Shama Sadiq, Nadeem Azhar, S. Rani","doi":"10.1088/1674-1137/ad4c58","DOIUrl":"https://doi.org/10.1088/1674-1137/ad4c58","url":null,"abstract":"\u0000 In this paper, we investigate the inflationary parameters and swampland conjectures in the presence of scalar field and Chaplygin models. We examine the inflationary parameters, such as slow-roll parameters, the scalar power spectrum, tensor power spectrum, spectral index and the tensor to scalar ratio in the presence of scalar field and Chaplygin gas models. We also discuss the recently proposed swampland conjectures. We consider that the inflationary expansion is driven by a standard scalar field with a decay ratio $Gamma$ that has a generic power law dependence on the scalar field $phi$ and the temperature of the thermal bath $T$ is given by $Gamma(phi,T)= C_{phi} frac{T^{a}}{phi^{a-1}}$, where $C_{phi}$ is a dimensionless parameter and $a$ is the inflation decay rate. Assuming that our model bends in a strong dissipative regime $(Rgg1)$, we study the background and perturbative dynamics and obtain the most relevant inflationary observables, such as the scalar power spectrum $mathcal{P_{R}}$, scalar spectral index $n_{s}$, dissipative ratio $R$, the tensor-to-scalar ratio $r$, running of the scalar spectral index $frac{dn_{s}}{dln{k}}$ and the generalized ratio of the Swampland de-Sitter conjecture $frac{acute{T}V}{acute{V}T}$ for three different potentials.","PeriodicalId":10250,"journal":{"name":"Chinese Physics C","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140970084","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}
引用次数: 0
Applying Deep Learning Technique to Chiral Magnetic Wave Search 将深度学习技术应用于手性磁波搜索
IF 3.6 2区 物理与天体物理
Chinese Physics C Pub Date : 2024-05-16 DOI: 10.1088/1674-1137/ad4c5d
Xu-Guang 黄旭光 Huang, Yuanzhuo Zhao
{"title":"Applying Deep Learning Technique to Chiral Magnetic Wave Search","authors":"Xu-Guang 黄旭光 Huang, Yuanzhuo Zhao","doi":"10.1088/1674-1137/ad4c5d","DOIUrl":"https://doi.org/10.1088/1674-1137/ad4c5d","url":null,"abstract":"\u0000 The chiral magnetic wave (CMW) is a collective mode in quark-gluon plasma originated from the chiral magnetic effect (CME) and chiral separation effect. Its detection in heavy-ion collisions is challenging due to significant background contamination. In Ref.~cite{Zhao:2021yjo}, we have constructed a neural network which can accurately identify the CME-related signal from the final-state pion spectra. In this paper, we generalize such a neural network to the case of CMW search. We show that, after a updated training, the neural network can effectively recognize the CMW-related signal. Additionally, we assess the performance of the neural network compared to other known methods for CMW search.","PeriodicalId":10250,"journal":{"name":"Chinese Physics C","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140969779","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}
引用次数: 0
Quasi-normal modes, Emission rate and Shadow of the charged AdS black hole with perfect fluid dark matter 带有完美流体暗物质的带电 AdS 黑洞的准正常模式、发射率和阴影
IF 3.6 2区 物理与天体物理
Chinese Physics C Pub Date : 2024-05-14 DOI: 10.1088/1674-1137/ad4af4
Hao Chen, Shi-Hai Dong, Sepehr Hassanabadi, N. Heidari, H. Hassanabadi
{"title":"Quasi-normal modes, Emission rate and Shadow of the charged AdS black hole with perfect fluid dark matter","authors":"Hao Chen, Shi-Hai Dong, Sepehr Hassanabadi, N. Heidari, H. Hassanabadi","doi":"10.1088/1674-1137/ad4af4","DOIUrl":"https://doi.org/10.1088/1674-1137/ad4af4","url":null,"abstract":"\u0000 In this work we investigate a comprehensive examination of a charged AdS black hole surrounded by a distinct form of dark matter, focusing on key elements including the Hawking temperature, quasi-normal modes, emission rate, and the shadow. Our investigation commences by computing the Hawking temperature, thereby identifying critical values such as the black hole's critical radius and maximum temperature, essential in delineating its phase transition. Further exploration centers on the analysis of quasi-normal modes in charged AdS black holes immersed in perfect fluid dark matter (PFDM) within the massless scalar field paradigm. Employing the Wentzel-Kramers-Brillouin (WKB) method, we accurately derive the frequencies of these black hole quasi-normal modes (QNMs). Additionally, we conduct a meticulous assessment of how the intensity of the PFDM parameter $alpha$ influences the partial absorption cross sections of the black hole, along with a detailed study of the energy emission rate's frequency variation. The pivotal role of geodesics in understanding astrophysical black hole characteristics is highlighted. Specifically, our investigation examines the influence of the dark matter parameter on photon evolution by computing the black hole's shadow radius. Our findings distinctly demonstrate the significant impact of the PFDM parameter $alpha$ on the boundaries of the black hole's shadow, unveiling crucial insights into its features and interactions. This comprehensive analysis provides profound insights into the intricate dynamics between a charged AdS black hole, novel dark matter, and various physical phenomena, illuminating their interplay and contributing valuable knowledge to the understanding of these cosmic entities.","PeriodicalId":10250,"journal":{"name":"Chinese Physics C","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140980676","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}
引用次数: 0
Inclusive quasielastic neutrino-nucleus scattering with energy density functional nuclear models 使用能量密度函数核模型的包容性准弹性中子-核散射
IF 3.6 2区 物理与天体物理
Chinese Physics C Pub Date : 2024-05-08 DOI: 10.1088/1674-1137/ad4855
K. S. Kim, Soonchul Choi, Hana Gil, Chang Ho Hyun
{"title":"Inclusive quasielastic neutrino-nucleus scattering with energy density functional nuclear models","authors":"K. S. Kim, Soonchul Choi, Hana Gil, Chang Ho Hyun","doi":"10.1088/1674-1137/ad4855","DOIUrl":"https://doi.org/10.1088/1674-1137/ad4855","url":null,"abstract":"\u0000 In the quasielastic region, we calculate the inclusive charged-current neutrino-nucleus scattering from $^{40}$Ar. To explore the effect of uncertainties stemming from the nuclear structure, we use the KIDS (Korea-IBS-Daegu-SKKU) nuclear energy density functional and Skyrme force models, SLy4, SkI3, and MSk7. The models are selected to have distinct behavior of the density dependence of the symmetry energy and the effective mass of the nucleon. In the charged-current neutrino scattering, the single- and double-differential cross sections are calculated in various kinematics and total cross sections are shown in terms of the incident neutrino energy. The theoretical cross sections are compared with experimental data, and the roles of the effective mass and the symmetry energy are investigated in the charged-current neutrino-nucleus scattering.","PeriodicalId":10250,"journal":{"name":"Chinese Physics C","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141001604","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}
引用次数: 0
Calculation of the energy dependence of fission fragments yields and kinetic energies distributions for neutron-induced 235U fission 计算中子诱发 235U 裂变的裂变碎片产率和动能分布的能量依赖性
IF 3.6 2区 物理与天体物理
Chinese Physics C Pub Date : 2024-05-08 DOI: 10.1088/1674-1137/ad485c
Ya-ning Han, Zheng Wei, Yixuan Wang, D. Huo, Pengqi Shiyu Zhang Zhang, Ming Li, Jun Ma, K. Wu, Yong-Guang Zheng, yuan he, Zhi-Yong Deng, Tian-Zhi Jiang, Xiang-jin Zhou, Jin Li, Yun Zhang, Yu Zahang, Junrun Wang, Xiaodong Su, Ze-En 姚泽恩 Yao
{"title":"Calculation of the energy dependence of fission fragments yields and kinetic energies distributions for neutron-induced 235U fission","authors":"Ya-ning Han, Zheng Wei, Yixuan Wang, D. Huo, Pengqi Shiyu Zhang Zhang, Ming Li, Jun Ma, K. Wu, Yong-Guang Zheng, yuan he, Zhi-Yong Deng, Tian-Zhi Jiang, Xiang-jin Zhou, Jin Li, Yun Zhang, Yu Zahang, Junrun Wang, Xiaodong Su, Ze-En 姚泽恩 Yao","doi":"10.1088/1674-1137/ad485c","DOIUrl":"https://doi.org/10.1088/1674-1137/ad485c","url":null,"abstract":"\u0000 Fission fragments yields and average total kinetic energy are the fundamental nuclear data essential for applications in nuclear energy and the study of nuclear devices. Certain fission products, such as 95Zr, 99Mo, 140Ba, 144Ce and 147Nd, serve as burnup monitors, assessing the number of fissions induced by neutrons on 235U. However, current experimental data for these fission products worldwide are inconsistent, introducing significant uncertainty into related scientific research. This study employs the Potential-driving Model to calculate the independent yields of 235U and evaluates its advantages in such calculations. Additionally, we investigate the energy dependence of independent yields for select important products. Furthermore, we calculate the cumulative yields of 95Zr, 99Mo, 140Ba, 144Ce, and 147Nd, and compare them with existing literature data to explore the energy dependence of fission products for 235U. Given the lack of fission product yield data above 14.8 MeV, we extend our calculated incident neutron energy to 20 MeV, aiming to support future scientific research. The Geant4 physical model does not consider the influence of incident neutron energy on the average total kinetic energy of fission fragments; thus, we introduce the excitation function of the total kinetic energy of fission fragments recommended by Madland et al., which effectively describes the experimental data of the average total kinetic energy of fragments formed in 235U fission. This study offers a detailed discussion on the energy dependence of fission product yield and average total kinetic energy.","PeriodicalId":10250,"journal":{"name":"Chinese Physics C","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140999200","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}
引用次数: 0
Ab initio valence-space in-medium similarity renormalization group calculations for neutron-rich P, Cl, and K isotopes 富中子 P、Cl 和 K 同位素的原子价空间内相似重正化组计算
IF 3.6 2区 物理与天体物理
Chinese Physics C Pub Date : 2024-05-06 DOI: 10.1088/1674-1137/ad47aa
Mengran Xie, Liuyuan Shen, Jianguo Li, Honghui Li, Qi Yuan, Wei 左维 Zuo
{"title":"Ab initio valence-space in-medium similarity renormalization group calculations for neutron-rich P, Cl, and K isotopes","authors":"Mengran Xie, Liuyuan Shen, Jianguo Li, Honghui Li, Qi Yuan, Wei 左维 Zuo","doi":"10.1088/1674-1137/ad47aa","DOIUrl":"https://doi.org/10.1088/1674-1137/ad47aa","url":null,"abstract":"\u0000 Neutron-rich P, Cl, and K isotopes, particularly those with neutron numbers around $N=28$, have attracted extensive experimental and theoretical interest. We utilize the textit{ab initio} valence-space in-medium similarity renormalization group approach, based on chiral nucleon-nucleon and three-nucleon forces, to investigate the exotic properties of these isotopes. Systematic calculations of the low-lying spectra are performed. A key finding is the level inversion between $3/2_1^+$ and $1/2_1^+$ states in odd-$A$ isotopes, attributed to the inversion of $pi 0d_{3/2}$ and $pi 1s_{1/2}$ single-particle states. textit{Ab initio} calculations, which incorporate the three-nucleon forces, correlate closely with existing experimental data. Further calculations of effective proton single-particle energies provide deeper insights into the shell evolution for $Z=14$ and $16$ sub-shells. Our results indicate that the three-body force plays important roles in the shell evolution for $Z=14$ and $16$ sub-shells with neutron numbers ranging from 20 to 28. Additionally, systematic textit{ab initio} calculations are conducted for the low-lying spectra of odd-odd nuclei. The results align with experimental data and provide new insights for future research into these isotopes, up to and beyond the drip line.","PeriodicalId":10250,"journal":{"name":"Chinese Physics C","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141008193","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}
引用次数: 0
Uncertainties of Nuclear Level Density estimated by Bayesian Neural Networks 贝叶斯神经网络估算的核电平密度的不确定性
IF 3.6 2区 物理与天体物理
Chinese Physics C Pub Date : 2024-05-06 DOI: 10.1088/1674-1137/ad47a7
Xinyu Wang, Ying Cui, Yuan Tian, Kai Zhao, Ying-Xun Zhang
{"title":"Uncertainties of Nuclear Level Density estimated by Bayesian Neural Networks","authors":"Xinyu Wang, Ying Cui, Yuan Tian, Kai Zhao, Ying-Xun Zhang","doi":"10.1088/1674-1137/ad47a7","DOIUrl":"https://doi.org/10.1088/1674-1137/ad47a7","url":null,"abstract":"\u0000 Nuclear level density (NLD) is a critical parameter for understanding nuclear reactions and the structure of atomic nuclei, yet accurate estimation of NLD is challenging due to limitations inherent in both experimental measurements and theoretical models. This paper presents a sophisticated approach using Bayesian Neural Networks (BNN) to analyse NLD across a wide range of models. It uniquely incorporates the assessment of model uncertainties. The application of BNN has demonstrated remarkable success in accurately predicting NLD values when compared to recent experimental data, confirming the effectiveness of our methodology. The reliability and predictive power of the BNN approach not only validates its current application, but also encourages its integration into future analyses of nuclear reaction cross sections.","PeriodicalId":10250,"journal":{"name":"Chinese Physics C","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141008991","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}
引用次数: 0
B meson rare decays in the TNMSSM* * Supported by the National Natural Science Foundation of China (12075074, 12235008, 11535002, 11705045), the Natural Science Foundation for Distinguished Young Scholars of Hebei Province, China (A2022201017), the Natural Science Foundation of Guangxi Autonomous Region (2022GXNSFDA035068), and the Youth Top-Notch Talent Support Program of the Hebei Province, China. TNMSSM 中的 B 介子稀有衰变* * 国家自然科学基金资助项目(12075074、12235008、11535002、11705045)、河北省杰出青年学者自然科学基金(A2022201017)、广西自治区自然科学基金(2022GXNSFDA035068)和河北省青年拔尖人才支持计划。
IF 3.6 2区 物理与天体物理
Chinese Physics C Pub Date : 2024-05-01 DOI: 10.1088/1674-1137/ad2a62
Hai-Xiang Chen, Sheng-Kai Cui, Ning-Yu Zhu, Zhao-Yang Zhang, Huai-Cong Hu
{"title":"B meson rare decays in the TNMSSM* * Supported by the National Natural Science Foundation of China (12075074, 12235008, 11535002, 11705045), the Natural Science Foundation for Distinguished Young Scholars of Hebei Province, China (A2022201017), the Natural Science Foundation of Guangxi Autonomous Region (2022GXNSFDA035068), and the Youth Top-Notch Talent Support Program of the Hebei Province, China.","authors":"Hai-Xiang Chen, Sheng-Kai Cui, Ning-Yu Zhu, Zhao-Yang Zhang, Huai-Cong Hu","doi":"10.1088/1674-1137/ad2a62","DOIUrl":"https://doi.org/10.1088/1674-1137/ad2a62","url":null,"abstract":"We investigate the two loop electroweak corrections to <italic toggle=\"yes\">B</italic> meson rare decays <inline-formula>\u0000<tex-math><?CDATA $ bar Brightarrow X_sgamma $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_053104_M1.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> and <inline-formula>\u0000<tex-math><?CDATA $ B_s^0rightarrow mu^+mu^- $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_053104_M2.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> in the minimal supersymmetry standard model (MSSM) extension with two triplets and one singlet (TNMSSM). The new particle contents and interactions in the TNMSSM can affect the theoretical predictions of the branching ratios <inline-formula>\u0000<tex-math><?CDATA $ {rm{Br}}(bar Brightarrow X_sgamma) $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_053104_M3.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> and <inline-formula>\u0000<tex-math><?CDATA $ {rm{Br}}(B_s^0rightarrow mu^+mu^-) $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_053104_M4.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula>, and the corrections from two loop diagrams to the process <inline-formula>\u0000<tex-math><?CDATA $ bar Brightarrow X_sgamma $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_053104_M5.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> can reach around <inline-formula>\u0000<tex-math><?CDATA $ 4% $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_053104_M6.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula>. Considering the latest experimental measurements, the numerical results of <inline-formula>\u0000<tex-math><?CDATA $ {rm{Br}}(bar Brightarrow X_sgamma) $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_053104_M7.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> and <inline-formula>\u0000<tex-math><?CDATA $ {rm{Br}}(B_s^0rightarrow mu^+mu^-) $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_053104_M8.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> in the TNMSSM are presented and analyzed. The findings indicate that the results in the TNMSSM can fit the updated experimental data well, and the new parameters <inline-formula>\u0000<tex-math><?CDATA $ T_{lambda},;kappa,;lambda $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_053104_M9.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula>, clearly affect the theoretical predictions of <inline-formula>\u0000<tex-math><?CDATA $ {rm{Br}}(bar Brightarrow X_sgamma) $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_053104_M10.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> and <inline-formula>\u0000<tex-math><?CDATA $ {rm{Br}}(B_s^0rightarrow mu^+mu^-) $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_053104_M11.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula>.","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":"140586972","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}
引用次数: 0
Dark energy and matter interacting scenario to relieve H 0 and S 8 tensions* * Supported by the National SKA Program of China (2022SKA0110200, 2022SKA0110203), and the National Natural Science Foundation of China (11975072, 11875102, 11835009) 暗能量和物质相互作用情景缓解 H 0 和 S 8 张力* * 国家 SKA 计划(2022SKA0110200, 2022SKA0110203)和国家自然科学基金(11975072, 11875102, 11835009)资助
IF 3.6 2区 物理与天体物理
Chinese Physics C Pub Date : 2024-05-01 DOI: 10.1088/1674-1137/ad2b52
Li-Yang Gao, She-Sheng Xue, Xin Zhang
{"title":"Dark energy and matter interacting scenario to relieve H 0 and S 8 tensions* * Supported by the National SKA Program of China (2022SKA0110200, 2022SKA0110203), and the National Natural Science Foundation of China (11975072, 11875102, 11835009)","authors":"Li-Yang Gao, She-Sheng Xue, Xin Zhang","doi":"10.1088/1674-1137/ad2b52","DOIUrl":"https://doi.org/10.1088/1674-1137/ad2b52","url":null,"abstract":"We consider a new cosmological model (called <inline-formula>\u0000<tex-math><?CDATA $ tildeLambda $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_051001_M1.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula>CDM), in which the vacuum energy interacts with matter and radiation, and test this model using the current cosmological observations. Using the CMB+BAO+SN (CBS) dataset to constrain the model, we find that <inline-formula>\u0000<tex-math><?CDATA $ H_0 $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_051001_M2.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> and <inline-formula>\u0000<tex-math><?CDATA $ S_8 $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_051001_M3.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> tensions are relieved to <inline-formula>\u0000<tex-math><?CDATA $ 2.87sigma $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_051001_M4.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> and <inline-formula>\u0000<tex-math><?CDATA $ 2.77sigma $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_051001_M5.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula>, respectively. However, in this case, the <inline-formula>\u0000<tex-math><?CDATA $ tildeLambda $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_051001_M6.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula>CDM model is not favored by the data, compared with ΛCDM. We find that when the <inline-formula>\u0000<tex-math><?CDATA $ H_0 $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_051001_M7.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> and <inline-formula>\u0000<tex-math><?CDATA $ S_8 $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_051001_M8.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> data are added to the data combination, the situation is significantly improved. In the CBS+<inline-formula>\u0000<tex-math><?CDATA $ H_0 $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_051001_M9.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> case, the model relieves the <inline-formula>\u0000<tex-math><?CDATA $ H_0 $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_051001_M10.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> tension to <inline-formula>\u0000<tex-math><?CDATA $ 0.47sigma $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_051001_M11.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula>, and the model is favored over ΛCDM. In the CBS+<inline-formula>\u0000<tex-math><?CDATA $ H_0 $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_051001_M12.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula>+<inline-formula>\u0000<tex-math><?CDATA $ S_8 $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_051001_M13.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> case, we obtain a synthetically best situation, in which the <inline-formula>\u0000<tex-math><?CDATA $ H_0 $?></tex-math>\u0000<inline-graphic xlink:href=\"cpc_48_5_051001_M14.jpg\" xlink:type=\"simple\"></inline-graphic>\u0000</inline-formula> and <inline-for","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":"140586919","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}
引用次数: 0
Black hole shadows in Einstein-Bel-Robinson gravity* * Supported by the Internal Project (2023/2211) of Excellent Research of the Faculty of Science of Hradec Králové University 爱因斯坦-贝尔-罗宾逊引力中的黑洞阴影* * 由赫拉德茨-克拉洛韦大学理学院优秀研究内部项目(2023/2211)资助
IF 3.6 2区 物理与天体物理
Chinese Physics C Pub Date : 2024-05-01 DOI: 10.1088/1674-1137/ad2a4d
B. Hamil, B. C. Lütfüoğlu
{"title":"Black hole shadows in Einstein-Bel-Robinson gravity* * Supported by the Internal Project (2023/2211) of Excellent Research of the Faculty of Science of Hradec Králové University","authors":"B. Hamil, B. C. Lütfüoğlu","doi":"10.1088/1674-1137/ad2a4d","DOIUrl":"https://doi.org/10.1088/1674-1137/ad2a4d","url":null,"abstract":"Gravity models given by higher-order scalar curvature corrections are believed to bear important consequences. Einstein-Bel-Robinson (EBR) gravity with quartic curvature modification motivated Sajadi <italic toggle=\"yes\">et al</italic>. to explore static spherically symmetric black hole solutions using perturbative methods. In this study, inspired by their work, we investigate AdS black hole shadows in EBR gravity and demonstrate how the gravity parameter alters the energy emission rate. Finally, we address the same problem in the presence of plasma, because the black holes are thought to be surrounded by a medium that changes the geodesic of photons.","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":"140586961","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}
引用次数: 0
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