The European Physical Journal C最新文献

{"title":"Background characterization of the CONUS+ experimental location","authors":"E. Sánchez García,&nbsp;N. Ackermann,&nbsp;S. Armbruster,&nbsp;H. Bonet,&nbsp;C. Buck,&nbsp;K. Fülber,&nbsp;J. Hakenmüller,&nbsp;J. Hempfling,&nbsp;G. Heusser,&nbsp;E. Hohmann,&nbsp;M. Lindner,&nbsp;W. Maneschg,&nbsp;K. Ni,&nbsp;M. Rank,&nbsp;T. Rink,&nbsp;I. Stalder,&nbsp;H. Strecker,&nbsp;R. Wink,&nbsp;J. Woenckhaus","doi":"10.1140/epjc/s10052-025-14160-7","DOIUrl":"10.1140/epjc/s10052-025-14160-7","url":null,"abstract":"<div><p>CONUS<span>+</span> is an experiment aiming at detecting coherent elastic neutrino-nucleus scattering (CE<span>(nu )</span>NS) of reactor antineutrinos on germanium nuclei in the fully coherent regime, continuing the CONUS physics program conducted at the Brokdorf nuclear power plant (KBR), Germany. The CONUS<span>+</span> experiment is installed in the Leibstadt nuclear power plant (KKL), Switzerland, at a distance of 20.7 m from the 3.6 GW reactor core, where the antineutrino flux is <span>(1.5cdot 10^{13})</span> s<span>(^{-1})</span> cm<span>(^{-2})</span>. The CE<span>(nu )</span>NS signature will be measured with four point-contact high-purity low energy threshold germanium (HPGe) detectors. A good understanding of the background is crucial, especially events correlated with the reactor thermal power are troublesome, as they can mimic the predicted CE<span>(nu )</span>NS interactions. A large background characterization campaign was conducted during reactor on and off times to find the best location for the CONUS<span>+</span> setup. On-site measurements revealed a correlated, highly thermalized neutron field with a maximum fluence rate of <span>((2.3pm 0.1)cdot 10^{4})</span> neutrons d<span>(^{-1})</span> cm<span>(^{-2})</span> during reactor operation. The <span>(gamma )</span>-ray background was studied with a HPGe detector without shield, paying special attention to the thermal power correlated <span>(^{16})</span>N decay and other neutron capture <span>(gamma )</span>-lines. The muon flux was examined using a liquid scintillator detector measuring (107 ± 3) muons s<span>(^{-1})</span>m<span>(^{-2})</span>, which corresponds to an average overburden of 7.4 m of water equivalent. The new background conditions in CONUS<span>+</span> are compared to the previous CONUS ones, showing a 30 times higher flux of neutrons, but a 26 times lower component of reactor thermal power correlated <span>(gamma )</span>-rays over 2.7 MeV. The lower CONUS<span>+</span> overburden increases the number of muon-induced neutrons by 2.3 times and the flux of cosmogenic neutrons. Finally, all the measured rates are discussed in the context of the CONUS<span>+</span> background, together with the CONUS<span>+</span> modifications performed to reduce the impact of the new background conditions at KKL.\u0000</p></div>","PeriodicalId":788,"journal":{"name":"The European Physical Journal C","volume":"85 4","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1140/epjc/s10052-025-14160-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143875404","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Lattice calculation of the (eta _ceta _c) and (J/psi J/psi ) s-wave scattering length","authors":"Yu Meng,&nbsp;Chuan Liu,&nbsp;Xin-Yu Tuo,&nbsp;Haobo Yan,&nbsp;Zhaolong Zhang","doi":"10.1140/epjc/s10052-025-14192-z","DOIUrl":"10.1140/epjc/s10052-025-14192-z","url":null,"abstract":"<div><p>We calculate the s-wave scattering length in the <span>(0^+)</span> sector of <span>(eta _ceta _c)</span> and the <span>(2^+)</span> sector of <span>(J/psi J/psi )</span> using three <span>(N_f=2)</span> twisted mass gauge ensembles with the pion mass <span>(300{-}365)</span> MeV and lattice spacing <span>(a=0.0667,0.085,0.098)</span> fm, respectively. The scattering lengths are extracted using the conventional Lüscher finite size method. We observe sizable discretization effects and the results after a continuum extrapolation are <span>(a^{0^+}_{eta _ceta _c}=-0.104(09))</span> fm and <span>(a^{2^+}_{J/psi J/psi }=-0.165(16))</span> fm. The slight difference of light quark mass is ignored in this study. Our results indicate that the interaction between the two respective charmonia are repulsive in nature in both cases.\u0000</p></div>","PeriodicalId":788,"journal":{"name":"The European Physical Journal C","volume":"85 4","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1140/epjc/s10052-025-14192-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143871289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Confined but chirally and chiral spin symmetric hot matter","authors":"L. Ya. Glozman,&nbsp;A. V. Nefediev,&nbsp;R. F. Wagenbrunn","doi":"10.1140/epjc/s10052-025-14164-3","DOIUrl":"10.1140/epjc/s10052-025-14164-3","url":null,"abstract":"<div><p>We investigate properties of the quark–antiquark mesons at zero and finite temperature in the framework of a solvable chirally symmetric quark model. The interquark linearly rising interaction is reminiscent of that derived in Coulomb gauge QCD, with the string tension being the only model parameter. We demonstrate that while the confining interaction induces spontaneous breaking of chiral symmetry at <span>(T=0)</span>, it gets restored at a temperature <span>(T_textrm{ch}simeq 90)</span> MeV for the string tension fixed to provide the phenomenological value of the quark condensate. This temperature is similar to <span>(T_textrm{ch}simeq 130)</span> MeV observed on the lattice in the chiral limit for <span>(N_c=3)</span>. The physical mechanism responsible for chiral symmetry restoration in the confining regime is Pauli blocking of the quark levels, required for the existence of a nonvanishing quark condensate, by thermal excitations of the quarks and antiquarks. Thus, above the chiral restoration temperature, meson-like states are chirally symmetric and approximately chiral spin symmetric. A crucial property of the confined meson-like light-light states above <span>(T_textrm{ch})</span> is their size that exceeds drastically that in the chirally broken phase below <span>(T_textrm{ch})</span>. Heavy-heavy mesons nearly preserve their size irrespective of the temperature. Furthermore, the root-mean-square radius of the states with <span>(J=0,1)</span> diverges in the chiral limit. This unexpected property must be a key to understanding unusual features of the hot QCD matter as observed at RHIC and LHC. Consequently, the confining but chirally symmetric matter above <span>(T_textrm{ch})</span> can be considered as a dense system of very large and strongly overlapping meson-like states (“strings”).\u0000</p></div>","PeriodicalId":788,"journal":{"name":"The European Physical Journal C","volume":"85 4","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1140/epjc/s10052-025-14164-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143875335","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exploring decoupling process and energy exchange in compact stars induced by dark matter spike density profile within complexity free domain","authors":"S. K. Maurya,&nbsp;Sweeti Kiroriwal,&nbsp;Jitendra Kumar,&nbsp;Abdul Aziz","doi":"10.1140/epjc/s10052-025-14151-8","DOIUrl":"10.1140/epjc/s10052-025-14151-8","url":null,"abstract":"<div><p>This study focuses on the characteristics of compact stars composed of dark matter induced by gravitational decoupling in the context of the general theory of relativity. We are proposing an anisotropic model holding an Einasto spike dark matter density profile. The vanishing complexity factor along with a complete geometric deformation approach has been used to solve the decoupled field equations for the spherically symmetric celestial objects. In the current decoupled solution, the decoupling parameter <span>(beta )</span> determines the quantity of dark matter content inside the object. Additionally, we determine the model’s physical quantities such as pressure, density, anisotropy, causality criteria, energy exchange between the fluid distributions, and variation of mass with central density mass within the stellar model PSR J0952-0607 for different values of <span>(beta )</span> which shows the impact of dark matter content on these physical quantities. Furthermore, we have also shown the influence of <span>(beta )</span> on the radii of the astrophysical binary pulsars GW190814, PSR J0952-0607, and PSR J1614-2230. In the framework of the decoupling approach, our graphical findings show that binary pulsars have mass lower than <span>(M_{max})</span> but higher radii for a specific <span>(M{-}R)</span> curve for well-defined values of given parameters.\u0000</p></div>","PeriodicalId":788,"journal":{"name":"The European Physical Journal C","volume":"85 4","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1140/epjc/s10052-025-14151-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143871288","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Topological insights into black hole thermodynamics: non-extensive entropy in CFT framework","authors":"Mohammad Ali S. Afshar,&nbsp;Mohammad Reza Alipour,&nbsp;Saeed Noori Gashti,&nbsp;Jafar Sadeghi","doi":"10.1140/epjc/s10052-025-14173-2","DOIUrl":"10.1140/epjc/s10052-025-14173-2","url":null,"abstract":"<div><p>In this paper, we conducted an in-depth investigation into the thermodynamic topology of Einstein-Gauss-Bonnet black holes within the framework of Conformal Field Theory (CFT), considering the implications of non-extensive entropy formulations. Our study reveals that the parameter <span>(lambda )</span> (Rényi entropy) plays a crucial role in the phase behavior of black holes. Specifically, when <span>(lambda )</span> is below the critical value (C), it has a negligible impact on the phase behavior. However, when <span>(lambda )</span> exceeds the critical value, it significantly alters the phase transition outcomes. Determining the most physically representative values of <span>(lambda )</span> will require experimental validation, but this parameter flexibility allows researchers to better explain black hole phase transitions under varying physical conditions. Furthermore, the parameters <span>(alpha )</span> and <span>(beta )</span> affect the phase structure and topological charge for the Sharma–Mittal entropy. Only in the case of <span>(C&gt;C_c)</span> and in the condition of <span>(alpha approx beta )</span> will we have a first-order phase transition with topological charge + 1. Additionally, for the loop quantum gravity (LQG) non-extensive entropy as the parameter <i>q</i> approaches 1, the classification of topological charges changes. We observe configurations with one and three topological charges with respect to critical value <i>C</i>, resulting in a total topological charge <span>(W = +1)</span>, and configurations with two topological charges <span>((omega = +1, -1))</span>, leading to a total topological charge <span>(W = 0)</span>. These findings provide new insights into the complex phase behavior and topological characteristics of black holes in the context of CFT and non-extensive entropy formulations.\u0000</p></div>","PeriodicalId":788,"journal":{"name":"The European Physical Journal C","volume":"85 4","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1140/epjc/s10052-025-14173-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143871294","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fast interpolation grids for the Drell–Yan process","authors":"Juan Cruz–Martinez,&nbsp;Alexander Huss,&nbsp;Christopher Schwan","doi":"10.1140/epjc/s10052-025-14170-5","DOIUrl":"10.1140/epjc/s10052-025-14170-5","url":null,"abstract":"<div><p>Modern analyses of experimental data from hadron colliders rely on theory predictions at high orders in perturbation theory and a variety of input settings. Interpolation grids facilitate an almost instant re-evaluation of theory predictions for different input parton distributions functions (PDFs) or scale settings and are thus indispensable in the study of the parton content of the proton. While interpolation grids at next-to-next-to-leading order (NNLO) exist for some key processes relevant for PDF determinations, a notable exception is the Drell–Yan process that constitutes the production of electroweak gauge bosons at hadron colliders and provides important constraints on the quark content of the proton. To address this gap, we report on a new interface between the parton-level Monte Carlo generator \u0000<img>\u0000 and the interpolation grid library \u0000<img>\u0000 and demonstrate its use for the Drell–Yan process. Accompanying this note, we release Drell–Yan grids covering a wide range of measurements that commonly enter global determinations of PDFs. We use the grids to study accidental cancellation between partonic channels at NNLO and inspect the validity of a <i>K</i>-factor approximation that was widely employed previously.\u0000</p></div>","PeriodicalId":788,"journal":{"name":"The European Physical Journal C","volume":"85 4","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1140/epjc/s10052-025-14170-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143871295","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dynamical and thermodynamic crossovers in the supercritical region of a holographic superfluid model","authors":"Zi-Qiang Zhao,&nbsp;Zhang-Yu Nie,&nbsp;Jing-Fei Zhang,&nbsp;Xin Zhang,&nbsp;Matteo Baggioli","doi":"10.1140/epjc/s10052-025-14149-2","DOIUrl":"10.1140/epjc/s10052-025-14149-2","url":null,"abstract":"<div><p>Many physical systems, including classical fluids, present in their phase diagram the competition between two phases that are separated by a line of first-order phase transitions which terminates at a so-called critical point. Despite several proposals, in the supercritical region beyond the critical point, whether the two phases can still be distinguished and by which criterion remain open questions. In this work, we study the thermodynamics and linear dynamics of a holographic superfluid model with nonlinear potential terms in the supercritical region. We identify the presence of a dynamical crossover, akin to the liquid-like to gas-like Frenkel transition in supercritical fluids, and we define other separation lines of thermodynamic origin based on higher order derivatives of the free energy with respect to the charge density. Our results highlight the universal dynamical and thermodynamic features of supercritical systems from nuclear matter and classical fluids to superfluid systems.\u0000</p></div>","PeriodicalId":788,"journal":{"name":"The European Physical Journal C","volume":"85 4","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1140/epjc/s10052-025-14149-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143875337","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of dark boson mediated feeble interaction between dark matter (DM) and quark matter on f-mode oscillation of DM admixed quark stars","authors":"O. P. Jyothilakshmi,&nbsp;Lakshmi J. Naik,&nbsp;Debashree Sen,&nbsp;Atanu Guha,&nbsp;V. Sreekanth","doi":"10.1140/epjc/s10052-025-14109-w","DOIUrl":"10.1140/epjc/s10052-025-14109-w","url":null,"abstract":"<div><p>We investigate the behavior of the prominent non-radial fundamental <i>f</i>-mode oscillations of dark matter (DM) admixed strange quark stars (DMSQSs), by adopting an equation of state (EoS) developed in Ref. Sen and Guha (Mon Not R Astron Soc 517:518, 2022. https://doi.org/10.1093/mnras/stac2675), which considers the possible presence of feebly interacting DM in strange quark stars (SQSs) for the first time. Within the model, feeble interaction between fermionic DM <span>(chi )</span> and strange quark matter (SQM) is invoked via a vector new physics mediator <span>(xi )</span> with coupling strength <span>(y_{xi })</span>. The pure SQM is described by the vector MIT Bag model. By varying different EoS parameters, the structural properties viz. the mass, radius and tidal deformability (<span>(Lambda )</span>) of the DMSQSs are studied with respect to various astrophysical constraints. We study in detail the <i>f</i>-mode spectra within the Cowling approximation by obtaining the frequencies as a function of mass, compactness and <span>(Lambda )</span> of the star. To the best of our knowledge, this study represents the first analysis of non-radial <i>f</i>-mode oscillations of DMSQSs. Our investigation indicates that the presence of DM and its interaction with SQM has great impact on the <i>f</i>-modes. We show that the <i>f</i>-mode frequencies are larger for DMSQSs, which are largely populated with massive DM fermions, compared to the SQSs. Further, we obtain a linear empirical relation between the <i>f</i>-modes and the average density of the star. We also find that the mass-scaled angular frequency varies universally with compactness and <span>(ln {Lambda })</span> for DMSQSs. Further, our studies indicate that the inclusion of DM in compact stars reduces the deviation of <i>f</i>-mode frequency from general relativistic to Cowling approximation.\u0000</p></div>","PeriodicalId":788,"journal":{"name":"The European Physical Journal C","volume":"85 4","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1140/epjc/s10052-025-14109-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143875334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Trackformers: in search of transformer-based particle tracking for the high-luminosity LHC era","authors":"Sascha Caron,&nbsp;Nadezhda Dobreva,&nbsp;Antonio Ferrer Sánchez,&nbsp;José D. Martín-Guerrero,&nbsp;Uraz Odyurt,&nbsp;Roberto Ruiz de Austri Bazan,&nbsp;Zef Wolffs,&nbsp;Yue Zhao","doi":"10.1140/epjc/s10052-025-14156-3","DOIUrl":"10.1140/epjc/s10052-025-14156-3","url":null,"abstract":"<div><p>High-Energy Physics experiments are facing a multi-fold data increase with every new iteration. This is certainly the case for the upcoming High-Luminosity LHC upgrade. Such increased data processing requirements forces revisions to almost every step of the data processing pipeline. One such step in need of an overhaul is the task of particle track reconstruction, a.k.a., <i>tracking</i>. A Machine Learning-assisted solution is expected to provide significant improvements, since the most time-consuming step in tracking is the assignment of hits to particles or track candidates. This is the topic of this paper. We take inspiration from large language models. As such, we consider two approaches: the prediction of the next word in a sentence (next hit point in a track), as well as the one-shot prediction of all hits within an event. In an extensive design effort, we have experimented with three models based on the Transformer architecture and one model based on the U-Net architecture, performing track association predictions for collision event hit points. In our evaluation, we consider a spectrum of simple to complex representations of the problem, eliminating designs with lower metrics early on. We report extensive results, covering both prediction accuracy (score) and computational performance. We have made use of the REDVID simulation framework, as well as reductions applied to the TrackML data set, to compose five data sets from simple to complex, for our experiments. The results highlight distinct advantages among different designs in terms of prediction accuracy and computational performance, demonstrating the efficiency of our methodology. Most importantly, the results show the viability of a one-shot encoder-classifier based Transformer solution as a practical approach for the task of tracking. \u0000</p></div>","PeriodicalId":788,"journal":{"name":"The European Physical Journal C","volume":"85 4","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1140/epjc/s10052-025-14156-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143871293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"On the EFT validity for Drell–Yan tails at the LHC","authors":"L. Allwicher,&nbsp;D. A. Faroughy,&nbsp;M. Martines,&nbsp;O. Sumensari,&nbsp;F. Wilsch","doi":"10.1140/epjc/s10052-025-14171-4","DOIUrl":"10.1140/epjc/s10052-025-14171-4","url":null,"abstract":"<div><p>In this article, we examine the validity range of the Effective Field Theory (EFT) description of high-energy Drell–Yan processes at the LHC. To this purpose, we consider explicit mediators that contribute to these processes in the <i>s</i>- and <i>t</i>-channels, comparing their effects in Drell–Yan distributions with the ones obtained by matching onto the corresponding EFT. We determine the conditions for the EFT results to accurately describe these scenarios. In particular, we explore the impact of including dimension-eight <span>((d=8))</span> operators in the faster convergence of the EFT series, at the analytical and numerical level, considering contributions to the cross section up to the square of <span>(d=8)</span> EFT operator insertions. Moreover, we discuss the possible implications of clipping LHC data and illustrate results for a specific New-Physics scenario motivated by low-energy flavor data.\u0000</p></div>","PeriodicalId":788,"journal":{"name":"The European Physical Journal C","volume":"85 4","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1140/epjc/s10052-025-14171-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143875336","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}