{"title":"The bremsstrahlung-like production of the massive spin-2 dark matter mediator","authors":"I. Voronchikhin, D. Kirpichnikov","doi":"10.1140/epjc/s10052-025-14868-6","DOIUrl":"10.1140/epjc/s10052-025-14868-6","url":null,"abstract":"<div><p>The link between Standard Model (SM) particles and dark matter (DM) can be introduced via spin-2 massive mediator, <span>( {text {G}})</span>, that couples to photon and charged leptons. Moreover, in a mediator mass range from sub-MeV to sub-GeV, fixed-target facilities such as NA64e, LDMX, NA64<span>(mu )</span>, <span>(hbox {M}^3)</span>, and E137, can potentially probe such particle of the hidden sector via the signatures that are described by the bremsstrahlung-like process involving tensor mediator. We compare numerically the Weizsaker–Williams (WW) approximation and the exact tree-level (ETL) method for the bremsstrahlung-like mediator production cross section by choosing various parameters of the fixed-target experiments. To be more specific, the determination of WW validity region (in the parameter space of spin-2 DM mediator scenario, that can be examined in the laboratory facilities) is of particular interest of the present manuscript. In addition, we derive novel constraints on spin-2 DM mediator parameter space from the data of the E137 fixed-target experiment. In particular, we demonstrate that the E137 experiment has been ruled out the couplings of the spin-2 mediator at the level of <span>(8~times ~10^{-8}~text{ GeV}^{-1}~lesssim ~c^{text {G}}_{ee}~lesssim ~10^{-5}~text{ GeV}^{-1})</span> for the typical masses in the range <span>(100~text{ MeV }~lesssim ~m_{text {G}}~lesssim 800~text{ MeV })</span>, that corresponds to the statistics of <span>(1.87~times ~10^{20})</span> electrons accumulated on target. The latter implies its universal coupling to photons and electrons, <span>(c^{textrm{G}}_{gamma gamma }~=~c^{textrm{G}}_{ee})</span>.\u0000\u0000</p></div>","PeriodicalId":788,"journal":{"name":"The European Physical Journal C","volume":"85 10","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1140/epjc/s10052-025-14868-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256608","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-shell recursion relations for tree-level closed string amplitudes","authors":"Pongwit Srisangyingcharoen, Aphiwat Yuenyong","doi":"10.1140/epjc/s10052-025-14858-8","DOIUrl":"10.1140/epjc/s10052-025-14858-8","url":null,"abstract":"<div><p>We derive a general expression for on-shell recursion relations of closed string tree-level amplitudes. Starting with the string amplitudes written in the form of the Koba–Nielsen integral, we apply the BCFW shift to deform them. In contrast to open string amplitudes, where poles are explicitly determined by the integration over vertex positions, we utilize Schwinger’s parametrization to handle the pole structure in closed strings. Our analysis reveals that the shifted amplitudes contain <span>(delta )</span>-function poles, which yield simple poles upon taking residues. This allows us to present a general expression for the on-shell recursion relation for closed strings. Additionally, we offer an alternative method for computing the residue of the shifted amplitudes by factorizing an <i>n</i>-point closed string amplitude into two lower-point amplitudes. This is achieved by inserting a completeness relation that includes all possible closed string states in the Fock space. Our results are consistent with those previously obtained.\u0000</p></div>","PeriodicalId":788,"journal":{"name":"The European Physical Journal C","volume":"85 10","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1140/epjc/s10052-025-14858-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256113","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}
Mateusz Bała, Wojciech Krzemień, Beatrix C. Hiesmayr, Jakub Baran, Kamil Dulski, Konrad Klimaszewski, Lech Raczyński, Roman Y. Shopa, Wojciech Wiślicki
{"title":"Probing arbitrary polarized photon pairs undergoing double Compton scatterings by a dedicated MC simulator validated with experimental data","authors":"Mateusz Bała, Wojciech Krzemień, Beatrix C. Hiesmayr, Jakub Baran, Kamil Dulski, Konrad Klimaszewski, Lech Raczyński, Roman Y. Shopa, Wojciech Wiślicki","doi":"10.1140/epjc/s10052-025-14862-y","DOIUrl":"10.1140/epjc/s10052-025-14862-y","url":null,"abstract":"<div><p>Quantum correlations in the degree of polarization of freedom of the two-photon system have been extensively studied and form our current understanding of the quantum nature of our world. Most of the studies are concentrated on the low-energy (optical) photon pairs, for which efficient polarization measurement devices exist. However, for high-energetic (MeV) pairs of photons, e.g. produced in the decay of positronium atoms, no polarizers are available. Partial information about the polarization degree of freedom can be extracted by exploiting the measurements of photon pairs that undergo double Compton scattering. We present a Geant4-based Monte Carlo Vienna–Warsaw model capable of simulating any initial polarization state of bipartite photons. This puts us in a position to derive the behavior of the experimental observable, the angular difference <span>(Delta hat{Phi })</span> formed by the two scattering planes. We validate our Vienna–Warsaw simulator with the high-statistics experimental sample – based on a total of <span>(3 times 10^5 )</span> event candidates – of two-photon pairs measured with the J-PET Big Barrel detector. We deduce the value of the squared visibility (interference contrast) encoding the polarization in the angle difference of the two scattering planes, <span>(Delta hat{Phi })</span>. The simulated spectra are in good agreement with the experimental correlation spectra and behave as predicted by theory.\u0000</p></div>","PeriodicalId":788,"journal":{"name":"The European Physical Journal C","volume":"85 10","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1140/epjc/s10052-025-14862-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256114","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}
Manuel de la Cruz-López, Alfredo Herrera-Aguilar, Daniel Martínez-Carbajal, Sergio Patiño-López
{"title":"Noncommutative AdS black hole and the IR holographic superconductor","authors":"Manuel de la Cruz-López, Alfredo Herrera-Aguilar, Daniel Martínez-Carbajal, Sergio Patiño-López","doi":"10.1140/epjc/s10052-025-14642-8","DOIUrl":"10.1140/epjc/s10052-025-14642-8","url":null,"abstract":"<div><p>We construct a noncommutative (NC) <span>(hbox {AdS}_4)</span>-charged black hole with a planar horizon topology. The NC effects of this geometry are captured by a Gaussian distribution of black hole mass codified in a fluid-like energy–momentum tensor. A natural bound in radial coordinate is established, below which the scalar curvature changes its sign and defines a NC cutoff that embeds the point singularity. We study in detail the thermodynamic structure of this scenario, finding a well-defined black hole mass and an analytic criterion for its stability. Focusing on the <span>(hbox {AdS}_{2})</span> structure near the horizon, we find a novel effective curvature radius with dependency on the NC cutoff. These results motivate us to explore the holographic superconducting system in terms of the nearness from the cutoff. The behavior of the magnetic field in the deep IR geometry is studied and we found semi-analytical novel expressions for the upper critical magnetic fields of a dual type-II superconductor in the canonical and grand canonical ensembles. The condensation in the form of hair is studied in terms of the bound states of the associated Schrödinger potential of the scalar field, interpreted as the dual to the density of Cooper pairs. The NC effects increase the hair formation due to a steeper <span>(hbox {AdS}_2)</span> throat comparable to the commutative case. Finally, we obtain the effective IR scalar field equation on the near horizon and near extremal NC Schwarzschild <span>(hbox {AdS}_2)</span> geometry and confirm that NC effects promote bound states that the commutative version forbids.\u0000</p></div>","PeriodicalId":788,"journal":{"name":"The European Physical Journal C","volume":"85 10","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1140/epjc/s10052-025-14642-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256104","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":"Observational signature of Lorentz violation in acceleration radiation","authors":"Yu Tang, Wentao Liu, Jieci Wang","doi":"10.1140/epjc/s10052-025-14797-4","DOIUrl":"10.1140/epjc/s10052-025-14797-4","url":null,"abstract":"<div><p>In recent years, Lorentz violation (LV) has emerged as a vibrant area of research in fundamental physics. Despite predictions from quantum gravity theories that Lorentz symmetry may break down at Planck-scale energies, which are currently beyond experimental reach, its low-energy signatures could still be detectable through alternative methods. In this paper, we propose a quantum optical approach to investigate potential LV effects on the acceleration radiation of a freely falling atom within a black hole spacetime coupled to a Lorentz-violating vector field. Our proposed experimental setup employs a Casimir-type apparatus, wherein a two-level atom serves as a dipole detector, enabling its interaction with the field to be modeled using principles from quantum optics. We demonstrate that LV can introduce distinct quantum signatures into the radiation flux, thereby significantly modulating particle emission rates. It is found that while LV effects are negligible at high mode frequencies, they become increasingly pronounced at lower frequencies. This suggests that detecting LV at low-energy scales may depend on advancements in low-frequency observational techniques or detectors.\u0000</p></div>","PeriodicalId":788,"journal":{"name":"The European Physical Journal C","volume":"85 10","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1140/epjc/s10052-025-14797-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256300","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}
Mehr Khatoon, Irfan Mahmood, Hira Sohail, Allah Ditta, Hosam O. Elansary, Xue-Yin Liu, Asifa Ashraf, Shakhida Mannanova
{"title":"Impact of minimal geometric deformation and anisotropy on compact objects in modified rainbow gravity","authors":"Mehr Khatoon, Irfan Mahmood, Hira Sohail, Allah Ditta, Hosam O. Elansary, Xue-Yin Liu, Asifa Ashraf, Shakhida Mannanova","doi":"10.1140/epjc/s10052-025-14741-6","DOIUrl":"10.1140/epjc/s10052-025-14741-6","url":null,"abstract":"<div><p>In the current research article, we delve into the theoretical implications of Rastall–Rainbow Gravity within the framework of modified gravitational theories in which the curvature of spacetime is taken into account during the variation of the gravitational constant. We investigate gravitational decoupling phenomena through the Minimal Deformation Method (MGD), which consists of independent modifications of different matter and energy components under the action of the revised gravitational field equations. We thoroughly outline the roles of these decouplings in physical cosmological measurements, which include spectral properties of distant astrophysical sources and the redshift – distance relation, with particular emphasis on their implications on redshifts. Further, we study the behavior of the four energy conditions to ensure the physical viability of the model, with particular emphasis on the Dominant Energy Condition (DEC). We demonstrate that Rastall–Rainbow Gravity is in agreement with the underlying relativistic energy bounds, especially given the DEC even if this allows for large deformations of the gravitational field. This is a robust framework for studying cosmic dynamics and structure formation.\u0000</p></div>","PeriodicalId":788,"journal":{"name":"The European Physical Journal C","volume":"85 10","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1140/epjc/s10052-025-14741-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256668","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":"Lepton flavor violating decays of Higgs boson in the NB-LSSM","authors":"Cai Guo, Xing-Xing Dong, Shu-Min Zhao, Zhan Cao, Jia-Peng Huo, Jin-Lei Yang, Tai-Fu Feng","doi":"10.1140/epjc/s10052-025-14750-5","DOIUrl":"10.1140/epjc/s10052-025-14750-5","url":null,"abstract":"<div><p>Lepton flavor violation (LFV) represents a clear new physics (NP) signal beyond the standard model (SM). NB-LSSM, the next to minimal supersymmetric extension of the SM with local B-L gauge symmetry, includes three Higgs singlets and three generations of right-handed neutrinos in the basis of MSSM, motivated by the new definition of SM-like Higgs resultly from the introducing of three Higgs singlets which mix with the two Higgs doublets at the tree level in the NB-LSSM. We calculate LFV processes <span>(hrightarrow l_i l_j)</span> in the mass eigenstate basis and the electroweak interaction basis separately, and the latter adopts the mass insertion approximation (MIA) method. In the suitable parameter space, we obtain the reasonable numerical results. At the same time, the corresponding constraints from the LFV rare decays <span>(l_jrightarrow l_igamma )</span> are considered to analyze the numerical results.\u0000</p></div>","PeriodicalId":788,"journal":{"name":"The European Physical Journal C","volume":"85 10","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1140/epjc/s10052-025-14750-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256670","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":"Gravitational core of double field theory","authors":"Jeong-Hyuck Park","doi":"10.1140/epjc/s10052-025-14813-7","DOIUrl":"10.1140/epjc/s10052-025-14813-7","url":null,"abstract":"<div><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div><p> Double Field Theory (DFT) has emerged as a comprehensive framework for gravity, presenting a testable and robust alternative to General Relativity (GR), rooted in the <span>(textbf{O}(D,D))</span> symmetry principle of string theory. These lecture notes aim to provide an accessible introduction to DFT, structured in a manner similar to traditional GR courses. Key topics include doubled-yet-gauged coordinates, Riemannian <i>versus</i> non-Riemannian parametrisations of fundamental fields, covariant derivatives, curvatures, and the <span>(textbf{O}(D,D))</span>-symmetric augmentation of the Einstein field equation, identified as the unified field equation for the closed string massless sector. By offering a novel perspective, DFT addresses unresolved questions in GR and enables the exploration of diverse physical phenomena, paving the way for significant future research.\u0000</p></div>","PeriodicalId":788,"journal":{"name":"The European Physical Journal C","volume":"85 10","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1140/epjc/s10052-025-14813-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256301","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}
Chiara Arina, Benjamin Fuks, Luca Panizzi, Michael J. Baker, Alan S. Cornell, Jan Heisig, Benedikt Maier, Rute Pedro, Dominique Trischuk, Diyar Agin, Alexandre Arbey, Giorgio Arcadi, Emanuele Bagnaschi, Kehang Bai, Disha Bhatia, Mathias Becker, Alexander Belyaev, Ferdinand Benoit, Monika Blanke, Jackson Burzynski, Jonathan M. Butterworth, Antimo Cagnotta, Lorenzo Calibbi, Linda M. Carpenter, Xabier Cid Vidal, Emanuele Copello, Louie Corpe, Francesco D’Eramo, Aldo Deandrea, Aman Desai, Caterina Doglioni, Sunil M. Dogra, Mathias Garny, Mark D. Goodsell, Sohaib Hassan, Philip Coleman Harris, Julia Harz, Alejandro Ibarra, Alberto Orso Maria Iorio, Felix Kahlhoefer, Deepak Kar, Shaaban Khalil, Valery Khoze, Pyungwon Ko, Sabine Kraml, Greg Landsberg, Andre Lessa, Laura Lopez-Honorez, Alberto Mariotti, Vasiliki A. Mitsou, Kirtimaan Mohan, Chang-Seong Moon, Alexander Moreno Briceno, Maria Moreno Llacer, Leandre Munoz-Aillaud, Taylor Murphy, Anele M. Ncube, Wandile Nzuza, Clarisse Prat, Lena Rathmann, Thobani Sangweni, Dipan Sengupta, William Shepherd, Sukanya Sinha, Tim M. P. Tait, Andrea Thamm, Michel H. G. Tytgat, Zirui Wang, David Yu, Shin-Shan Yu
{"title":"Publisher Erratum: t-channel dark matter models – a whitepaper","authors":"Chiara Arina, Benjamin Fuks, Luca Panizzi, Michael J. Baker, Alan S. Cornell, Jan Heisig, Benedikt Maier, Rute Pedro, Dominique Trischuk, Diyar Agin, Alexandre Arbey, Giorgio Arcadi, Emanuele Bagnaschi, Kehang Bai, Disha Bhatia, Mathias Becker, Alexander Belyaev, Ferdinand Benoit, Monika Blanke, Jackson Burzynski, Jonathan M. Butterworth, Antimo Cagnotta, Lorenzo Calibbi, Linda M. Carpenter, Xabier Cid Vidal, Emanuele Copello, Louie Corpe, Francesco D’Eramo, Aldo Deandrea, Aman Desai, Caterina Doglioni, Sunil M. Dogra, Mathias Garny, Mark D. Goodsell, Sohaib Hassan, Philip Coleman Harris, Julia Harz, Alejandro Ibarra, Alberto Orso Maria Iorio, Felix Kahlhoefer, Deepak Kar, Shaaban Khalil, Valery Khoze, Pyungwon Ko, Sabine Kraml, Greg Landsberg, Andre Lessa, Laura Lopez-Honorez, Alberto Mariotti, Vasiliki A. Mitsou, Kirtimaan Mohan, Chang-Seong Moon, Alexander Moreno Briceno, Maria Moreno Llacer, Leandre Munoz-Aillaud, Taylor Murphy, Anele M. Ncube, Wandile Nzuza, Clarisse Prat, Lena Rathmann, Thobani Sangweni, Dipan Sengupta, William Shepherd, Sukanya Sinha, Tim M. P. Tait, Andrea Thamm, Michel H. G. Tytgat, Zirui Wang, David Yu, Shin-Shan Yu","doi":"10.1140/epjc/s10052-025-14818-2","DOIUrl":"10.1140/epjc/s10052-025-14818-2","url":null,"abstract":"","PeriodicalId":788,"journal":{"name":"The European Physical Journal C","volume":"85 10","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1140/epjc/s10052-025-14818-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256252","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":"Quasinormal modes of Schwarzschild black holes in the Dehnen-(1, 4, 5/2) type dark matter halos","authors":"Qi-Qi Liang, Dong Liu, Zheng-Wen Long","doi":"10.1140/epjc/s10052-025-14850-2","DOIUrl":"10.1140/epjc/s10052-025-14850-2","url":null,"abstract":"<div><p>The Dehnen-type dark matter density distribution model is mainly used for dwarf galaxies. In recent years, researchers have speculated that black holes may exist in this dark matter model and have given the black hole metric solutions. On this basis, this paper conducts a systematic study on the quasinormal modes of a Schwarzschild black hole in a Dehnen-(1, 4, 5/2) dark matter halo, revealing the influences of dark matter distribution and perturbation field types on the black hole’s quasinormal modes. The research uses the shadow radius data of the M87<span>(^{*})</span> black hole. Through the geodesic equation, two sets of dark matter halo parameter values of <span>(rho _textrm{s})</span> and <span>(r_textrm{s})</span> are determined, and the specific numerical values of the black hole’s event horizon radius, photon sphere radius, and shadow radius under the corresponding conditions are obtained. The wave equations and effective potentials of the black hole under the perturbations of the scalar field, electromagnetic field, and axial gravitational were analyzed. It was found that the larger the values of <span>(rho _textrm{s})</span> or <span>(r_textrm{s})</span>, the smaller the peak value of the effective potential, and the wave function oscillation slows down with a lower frequency. The black hole remains stable under perturbations. These studies provide relevant data for the quasinormal modes of the Schwarzschild black hole in the Dehnen-(1,4, 5/2) type dark matter halo. They also offer crucial evidence for understanding the interaction mechanism between the black hole and the dark matter halo.\u0000\u0000</p></div>","PeriodicalId":788,"journal":{"name":"The European Physical Journal C","volume":"85 10","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1140/epjc/s10052-025-14850-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256251","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}
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