Physical Review D最新文献

{"title":"Variational inference for pile-up removal at hadron colliders with diffusion models","authors":"Malte Algren, Tobias Golling, Christopher Pollard, John Andrew Raine","doi":"10.1103/physrevd.111.116010","DOIUrl":"https://doi.org/10.1103/physrevd.111.116010","url":null,"abstract":"In this paper, we present a novel method for pile-up removal of p</a:mi>p</a:mi></a:math> interactions using variational inference with diffusion models, called . Instead of using classification methods to identify which particles are from the primary collision, a generative model is trained to predict the constituents of the hard-scatter particle jets with pile-up removed. This results in an estimate of the full posterior over hard-scatter jet constituents, which has not yet been explored in the context of pile-up removal, yielding a clear advantage over existing methods especially in the presence of imperfect detector efficiency. We evaluate the performance of in a sample of jets from simulated <c:math xmlns:c=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><c:mi>t</c:mi><c:mover accent=\"true\"><c:mi>t</c:mi><c:mo stretchy=\"false\">¯</c:mo></c:mover></c:math> events overlain with pile-up contamination. outperforms and has comparable performance to in predicting the substructure of the hard-scatter jets over a wide range of pile-up scenarios. <jats:supplementary-material> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2025</jats:copyright-year> </jats:permissions> </jats:supplementary-material>","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"25 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144288604","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":"Renyi reflected entropy and entanglement wedge cross section with cosmic branes in AdS/BCFT","authors":"Byoungjoon Ahn, Sang-Eon Bak, Keun-Young Kim, Mitsuhiro Nishida","doi":"10.1103/physrevd.111.126006","DOIUrl":"https://doi.org/10.1103/physrevd.111.126006","url":null,"abstract":"In this study, we calculate the m</a:mi>−</a:mo>1</a:mn></a:math> correction to the reflected entropy for two adjacent intervals on a half-infinite line within the <c:math xmlns:c=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><c:mrow><c:msub><c:mrow><c:mi>AdS</c:mi></c:mrow><c:mrow><c:mn>3</c:mn></c:mrow></c:msub><c:mo>/</c:mo><c:msub><c:mrow><c:mi>BCFT</c:mi></c:mrow><c:mn>2</c:mn></c:msub></c:mrow></c:math> framework, where <e:math xmlns:e=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><e:mi>m</e:mi></e:math> is a Renyi index for a canonical purification. We utilize the doubling trick and compute the leading terms in the large central charge expansion of correlation functions in the holographic boundary conformal field theory (BCFT). In the corresponding anti–de Sitter (AdS) space with an end of the world brane, we analyze the entanglement wedge cross section, the dual counterpart of reflected entropy. This AdS/BCFT setup allows us to explore a richer set of phases in the entanglement wedge cross section. The <g:math xmlns:g=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><g:mi>m</g:mi><g:mo>−</g:mo><g:mn>1</g:mn></g:math> correction in the holographic BCFT manifests as modifications in the entanglement wedge cross section induced by cosmic branes. For the adjacent intervals anchored to the boundary of BCFT, we show the duality between the entanglement wedge cross section with the backreaction from a cosmic brane and Renyi reflected entropy at all orders in <i:math xmlns:i=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><i:mi>m</i:mi><i:mo>−</i:mo><i:mn>1</i:mn></i:math>. Furthermore, by analyzing the entanglement wedge cross section for general adjacent intervals, we provide guidance for an <k:math xmlns:k=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><k:mi>ε</k:mi></k:math> expansion of five-point functions in the holographic conformal field theory (CFT), where <m:math xmlns:m=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><m:mi>ε</m:mi></m:math> is the rescaled conformal dimension by the central charge. <jats:supplementary-material> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2025</jats:copyright-year> </jats:permissions> </jats:supplementary-material>","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"56 1 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144288486","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":"Diósi-Penrose model of classical gravity predicts gravitationally induced entanglement","authors":"David Trillo, Miguel Navascués","doi":"10.1103/physrevd.111.l121101","DOIUrl":"https://doi.org/10.1103/physrevd.111.l121101","url":null,"abstract":"We show that the dynamics of the Diósi-Penrose (DP) model of classical gravity can entangle the mechanical degrees of freedom of two separate particles. For standard experiments of gravitationally induced entanglement (GIE), we find that entanglement can be generated if and only if the particles are separated by a distance smaller than some limiting value d</a:mi>c</a:mi></a:msub></a:math>, proportional to the only free parameter of the DP model. Greater distances can be achieved through new experimental configurations, where the initial wave functions of the particles are allowed to spread perpendicularly to the separation axis. Although the DP dynamics asymptotically drives the system to a separable state, we observe that, for reasonable experimental parameters, GIE can survive for more than a day. Our results therefore imply that GIE detection is not enough to validate quantum gravity. Experimental tests of GIE dynamics have nonetheless the potential to falsify the DP model. <jats:supplementary-material> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2025</jats:copyright-year> </jats:permissions> </jats:supplementary-material>","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"7 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144278214","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":"Inhomogeneous metrics on complex bundles in Lovelock gravity","authors":"Cristóbal Corral, Borja Diez, Daniel Flores-Alfonso, Nelson Merino, Leonardo Sanhueza","doi":"10.1103/physrevd.111.124016","DOIUrl":"https://doi.org/10.1103/physrevd.111.124016","url":null,"abstract":"We consider Lovelock gravity in arbitrary, even dimensions. We find a large class of new gravitational instantons by considering extended nontrivial circle bundles over Kähler manifolds. Concretely, we generalize the Page-Pope metric in the presence of higher-curvature corrections of the Lovelock class. A subset of these spaces admits analytic continuation into the Lorentzian sector, producing new stationary solutions in Lovelock gravity. The geometries are fully determined by a single algebraic equation. We also obtain necessary and sufficient conditions for Lovelock-constant Kähler manifolds to exist in Lovelock gravity. Finally, we find a wide class of Lovelock-Maxwell solutions beyond staticity, allowing us to obtain the electrovacuum extension of these instantons. <jats:supplementary-material> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2025</jats:copyright-year> </jats:permissions> </jats:supplementary-material>","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"219 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144268563","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":"Radiation eikonal for post-Minkowskian observables","authors":"Jung-Wook Kim","doi":"10.1103/physrevd.111.l121702","DOIUrl":"https://doi.org/10.1103/physrevd.111.l121702","url":null,"abstract":"A recent proposal reinterprets the eikonal as the scattering generator, which computes scattering observables through an action as a symmetry generator. The aim of this study is to incorporate dissipative effects from radiation into this framework, where the eikonal is generalized to the by including mediator field degrees of freedom. The proposed generalization is tested through several post-Minkowskian scattering observables; scattering waveform, radiated momentum, and (time-asymmetric) radiation loss in the impulse. <jats:supplementary-material> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2025</jats:copyright-year> </jats:permissions> </jats:supplementary-material>","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"38 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144268599","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":"Stückelberg path to pure de Sitter supergravity","authors":"Sukṛti Bansal, Silvia Nagy, Antonio Padilla, Ivonne Zavala","doi":"10.1103/physrevd.111.125004","DOIUrl":"https://doi.org/10.1103/physrevd.111.125004","url":null,"abstract":"We advance the study of pure de Sitter supergravity by introducing a finite formulation of unimodular supergravity via the super-Stückelberg mechanism. Building on previous works, we construct a complete four-dimensional action of spontaneously broken N</a:mi>=</a:mo>1</a:mn></a:math> supergravity to all orders in the Stückelberg fields, which allows for de Sitter solutions. The introduction of finite supergravity transformations extends the super-Stückelberg procedure beyond the second order, offering a recursive solution to all orders in the Goldstino sector. This work bridges the earlier perturbative approaches and the complete finite theory, opening new possibilities for de Sitter vacua in supergravity models and eventually string theory. <jats:supplementary-material> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2025</jats:copyright-year> </jats:permissions> </jats:supplementary-material>","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"216 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144260056","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":"Regge bootstrap: From linear to nonlinear trajectories","authors":"Christopher Eckner, Felipe Figueroa, Piotr Tourkine","doi":"10.1103/physrevd.111.126005","DOIUrl":"https://doi.org/10.1103/physrevd.111.126005","url":null,"abstract":"We present a numerical linear programming bootstrap to construct dual model scattering amplitudes. Dual models describe tree-level exchanges of higher spin resonances in theories like string theory and large N</a:mi></a:mrow></a:math> gauge theories. Despite being very simple objects, their numerical bootstrap has proven challenging due to slow convergence of the infinite sums over resonances. Our bootstrap succeeds thanks to an efficient parametrization of the amplitude in terms of Mandelstam-Regge poles and the use of combined regions that make crossing symmetry constraining. Along the way, we discover and conjecture a property of “superunitarity” of the Veneziano amplitude, which we use to keep a linear problem. As results, we present first the study of a class of stringlike amplitudes with linear trajectories, for which we observe that the Veneziano amplitude lies at a preferred location, at the bottom of a pit, which minimizes crossing. Then, we introduce a toy-model deformation to nonlinear trajectories, mimicking some features of QCD, for which our algorithm also detects a clear pit. This gives compelling evidence that our bootstrap is able to produce amplitudes that can exhibit nontrivial phenomenological features. <jats:supplementary-material> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2025</jats:copyright-year> </jats:permissions> </jats:supplementary-material>","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"41 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144260057","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":"Chiral phase transition: Effective field theory and holography","authors":"Yanyan Bu, Zexin Yang","doi":"10.1103/physrevd.111.126004","DOIUrl":"https://doi.org/10.1103/physrevd.111.126004","url":null,"abstract":"We consider the chiral phase transition relevant for QCD matter at finite temperature but with vanishing baryon density. Presumably, the chiral phase transition is of second order for two-flavor QCD in the chiral limit [F. Cuteri , On the order of the QCD chiral phase transition for different numbers of quark flavours, .]. Near the transition temperature, we apply the Schwinger-Keldysh formalism and construct a low-energy effective field theory for the system, in which fluctuations and dissipations are systematically captured. The dynamical variables involve the chiral charge densities and order parameter (chiral condensate). Via the holographic Schwinger-Keldysh technique, the effective action is further confirmed within a modified anti–de Sitter QCD model. With higher-order terms suitably neglected, the stochastic equations derived from the effective field theory resemble those of model F in the Hohenberg-Halperin classification. Within the effective field theory, we briefly discuss the spontaneous breaking of chiral symmetry and Goldstone modes. <jats:supplementary-material> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2025</jats:copyright-year> </jats:permissions> </jats:supplementary-material>","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"5 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144260055","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":"bbu¯d¯ and bsu¯d¯ tetraquarks from lattice QCD using two-meson and diquark-antidiquark variational basis","authors":"Bhabani Sankar Tripathy, Nilmani Mathur, M. Padmanath","doi":"10.1103/physrevd.111.114504","DOIUrl":"https://doi.org/10.1103/physrevd.111.114504","url":null,"abstract":"We present a lattice QCD investigation of isoscalar tetraquark systems involving bottom quarks with explicit flavor content b&lt;/a:mi&gt;b&lt;/a:mi&gt;u&lt;/a:mi&gt;¯&lt;/a:mo&gt;&lt;/a:mover&gt;d&lt;/a:mi&gt;¯&lt;/a:mo&gt;&lt;/a:mover&gt;&lt;/a:math&gt; and &lt;g:math xmlns:g=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;g:mi&gt;b&lt;/g:mi&gt;&lt;g:mi&gt;s&lt;/g:mi&gt;&lt;g:mover accent=\"true\"&gt;&lt;g:mi&gt;u&lt;/g:mi&gt;&lt;g:mo stretchy=\"false\"&gt;¯&lt;/g:mo&gt;&lt;/g:mover&gt;&lt;g:mover accent=\"true\"&gt;&lt;g:mi&gt;d&lt;/g:mi&gt;&lt;g:mo stretchy=\"false\"&gt;¯&lt;/g:mo&gt;&lt;/g:mover&gt;&lt;/g:math&gt;. In the doubly bottom sector, the study focuses on axial-vector &lt;m:math xmlns:m=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;m:msup&gt;&lt;m:mi&gt;J&lt;/m:mi&gt;&lt;m:mi&gt;P&lt;/m:mi&gt;&lt;/m:msup&gt;&lt;m:mo&gt;=&lt;/m:mo&gt;&lt;m:msup&gt;&lt;m:mn&gt;1&lt;/m:mn&gt;&lt;m:mo&gt;+&lt;/m:mo&gt;&lt;/m:msup&gt;&lt;/m:math&gt; quantum numbers, whereas in the &lt;o:math xmlns:o=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;o:mi&gt;b&lt;/o:mi&gt;&lt;o:mi&gt;s&lt;/o:mi&gt;&lt;o:mover accent=\"true\"&gt;&lt;o:mi&gt;u&lt;/o:mi&gt;&lt;o:mo stretchy=\"false\"&gt;¯&lt;/o:mo&gt;&lt;/o:mover&gt;&lt;o:mover accent=\"true\"&gt;&lt;o:mi&gt;d&lt;/o:mi&gt;&lt;o:mo stretchy=\"false\"&gt;¯&lt;/o:mo&gt;&lt;/o:mover&gt;&lt;/o:math&gt; channel, both axial-vector &lt;u:math xmlns:u=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;u:msup&gt;&lt;u:mi&gt;J&lt;/u:mi&gt;&lt;u:mi&gt;P&lt;/u:mi&gt;&lt;/u:msup&gt;&lt;u:mo&gt;=&lt;/u:mo&gt;&lt;u:msup&gt;&lt;u:mn&gt;1&lt;/u:mn&gt;&lt;u:mo&gt;+&lt;/u:mo&gt;&lt;/u:msup&gt;&lt;/u:math&gt; and scalar &lt;w:math xmlns:w=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;w:msup&gt;&lt;w:mi&gt;J&lt;/w:mi&gt;&lt;w:mi&gt;P&lt;/w:mi&gt;&lt;/w:msup&gt;&lt;w:mo&gt;=&lt;/w:mo&gt;&lt;w:msup&gt;&lt;w:mn&gt;0&lt;/w:mn&gt;&lt;w:mo&gt;+&lt;/w:mo&gt;&lt;/w:msup&gt;&lt;/w:math&gt; quantum numbers are investigated in search of signatures for possible tetraquark bound states. The calculations are performed on four ensembles with dynamical quark fields up to the charm quark generated by the MILC Collaboration, with lattice spacings ranging from approximately 0.058 to 0.12 fm, and at different values of the valence light quark mass &lt;y:math xmlns:y=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;y:msub&gt;&lt;y:mi&gt;m&lt;/y:mi&gt;&lt;y:mrow&gt;&lt;y:mi&gt;u&lt;/y:mi&gt;&lt;y:mo&gt;/&lt;/y:mo&gt;&lt;y:mi&gt;d&lt;/y:mi&gt;&lt;/y:mrow&gt;&lt;/y:msub&gt;&lt;/y:math&gt;, corresponding to pseudoscalar meson masses, M&lt;/ab:mi&gt;p&lt;/ab:mi&gt;s&lt;/ab:mi&gt;&lt;/ab:mrow&gt;&lt;/ab:msub&gt;=&lt;/ab:mo&gt;0.5&lt;/ab:mn&gt;&lt;/ab:math&gt;, 0.6, and 0.7 GeV. The energy eigenvalues in the finite volume are determined by applying a variational procedure to correlation matrices constructed from two-meson interpolating operators and diquark-antidiquark operators. Continuum extrapolated elastic &lt;cb:math xmlns:cb=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;cb:mi&gt;S&lt;/cb:mi&gt;&lt;/cb:math&gt;-wave scattering amplitudes of &lt;eb:math xmlns:eb=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;eb:mi&gt;B&lt;/eb:mi&gt;&lt;eb:msup&gt;&lt;eb:mi&gt;B&lt;/eb:mi&gt;&lt;eb:mo&gt;*&lt;/eb:mo&gt;&lt;/eb:msup&gt;&lt;/eb:math&gt;, &lt;gb:math xmlns:gb=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;gb:mi&gt;K&lt;/gb:mi&gt;&lt;gb:msup&gt;&lt;gb:mi&gt;B&lt;/gb:mi&gt;&lt;gb:mo&gt;*&lt;/gb:mo&gt;&lt;/gb:msup&gt;&lt;/gb:math&gt;, and &lt;ib:math xmlns:ib=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;ib:mi&gt;K&lt;/ib:mi&gt;&lt;ib:mi&gt;B&lt;/ib:mi&gt;&lt;/ib:math&gt; are extracted from the ground-state eigenenergies following a finite-volume analysis Lüscher. The chiral and continuum extrapola","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"11 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144252657","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":"Real modes and null memory contributions in effective-one-body models","authors":"Simone Albanesi","doi":"10.1103/physrevd.111.l121501","DOIUrl":"https://doi.org/10.1103/physrevd.111.l121501","url":null,"abstract":"We introduce a novel approach to describe real-valued m</a:mi>=</a:mo>0</a:mn></a:math> modes from inspiral to merger and ringdown in effective-one-body models, including both oscillatory and null memory contributions. A crucial aspect of the modelization of the oscillatory part is the complexification of the real modes via a Hilbert transform. This procedure allows for an accurate description of the merger-ringdown waveform by applying standard approaches employed for the complex <c:math xmlns:c=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><c:mi>m</c:mi><c:mo>&gt;</c:mo><c:mn>0</c:mn></c:math> modes, which include source-driven effects. The physical signal is then recovered by solely considering the real part. We apply this method in the extreme-mass-ratio regime, considering particle-driven linear gravitational perturbations in Schwarzschild and Kerr spacetimes. We then extend our description to spin-aligned, quasicircular, comparable-mass binaries providing hierarchical fits incorporating the test-mass limit. The postmerger waveform is then matched with an inspiral effective-one-body waveform. By adopting as our baseline, we also include the displacement memory in the (2, 0) mode through Bondi–van der Burg–Metzner-Sachs balance laws, thus providing a complete effective-one-body model incorporating both oscillatory and null memory effects. The accuracy of this model is validated against the hybrid numerical relativity surrogate , finding, for the quadrupole of the equal mass nonspinning case, a LIGO noise-weighted mismatch of <e:math xmlns:e=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><e:mover accent=\"true\"><e:mi mathvariant=\"script\">F</e:mi><e:mo stretchy=\"false\">¯</e:mo></e:mover><e:mo>=</e:mo><e:mrow><e:mn>6</e:mn><e:mo>×</e:mo><e:msup><e:mn>10</e:mn><e:mrow><e:mo>−</e:mo><e:mn>4</e:mn></e:mrow></e:msup></e:mrow></e:math> at <j:math xmlns:j=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><j:mn>50</j:mn><j:msub><j:mi>M</j:mi><j:mo stretchy=\"false\">⊙</j:mo></j:msub></j:math> for the inclination that maximizes the contribution of the (2, 0) mode. <jats:supplementary-material> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2025</jats:copyright-year> </jats:permissions> </jats:supplementary-material>","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"102 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144252023","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}