Physical review letters最新文献

{"title":"Constraints on Axion Mediated Dipole-Dipole Interactions","authors":"Zitong Xu, Xing Heng, Guoqing Tian, Di Gong, Lei Cong, Wei Ji, Dmitry Budker, Kai Wei","doi":"10.1103/physrevlett.134.181801","DOIUrl":"https://doi.org/10.1103/physrevlett.134.181801","url":null,"abstract":"The search for axions sits at the intersection of solving critical problems in fundamental physics, including the strong C</a:mi>P</a:mi></a:mrow></a:math> problem in QCD, uncovering the nature of dark matter, and understanding the origin of the Universe’s matter-antimatter asymmetry. The measurement of axion mediated spin-dependent interactions offers a powerful approach for axion detection. However, it has long been restricted to regions outside the “axion window” due to a significant trade-off: the need to effectively suppress the magnetic leakage from highly polarized spin sources while simultaneously detecting subfemtotesla level exotic physics signals at sub-decimeter-scale distances. In this work, we report new experimental results on axion mediated exotic spin-spin interactions using an iron-shielded <c:math xmlns:c=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><c:mrow><c:msub><c:mrow><c:mi>SmCo</c:mi></c:mrow><c:mrow><c:mn>5</c:mn></c:mrow></c:msub></c:mrow></c:math> spin source in combination with a specially designed self-compensation comagnetometer. Employing a composite shielding structure, we achieved a suppression of the magnetic field by up to <e:math xmlns:e=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><e:msup><e:mn>10</e:mn><e:mn>11</e:mn></e:msup></e:math>. This enabled us to establish new constraints on the coupling between electrons and neutrons, improving previous experimental limits by up to 10 000 times within the axion window. Furthermore, we also set the strongest constraints on the coupling between electrons and protons. The proposed method holds substantial potential not only for advancing the search for new physics beyond the standard model but also for enabling transformative applications in biological and chemical research. <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":20069,"journal":{"name":"Physical review letters","volume":"26 4 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143915442","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Class S Superconformal Indices from Maximal Supergravity","authors":"Ritabrata Bhattacharya, Abhay Katyal, Oscar Varela","doi":"10.1103/physrevlett.134.181601","DOIUrl":"https://doi.org/10.1103/physrevlett.134.181601","url":null,"abstract":"We present a new gauging of maximal supergravity in five spacetime dimensions with gauge group containing ISO(5), involving the local scaling symmetry of the metric, and admitting a supersymmetric anti–de Sitter vacuum. We show this maximal supergravity to arise by consistent truncation of M theory on the (nonspherical, nonparallelizable) six-dimensional geometry associated to a stack of N</a:mi></a:math> M5 branes wrapped on a smooth Riemann surface. The existence of this truncation allows us to holographically determine the complete, universal spectrum of light operators of the dual four-dimensional <c:math xmlns:c=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><c:mi mathvariant=\"script\">N</c:mi><c:mo>=</c:mo><c:mn>2</c:mn></c:math> theory of class <f:math xmlns:f=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><f:mi mathvariant=\"script\">S</f:mi></f:math>. We then compute holographically the superconformal index of the dual field theory at large <i:math xmlns:i=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><i:mi>N</i:mi></i:math>, finding perfect agreement with previously known field theory results in specific limits. <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":20069,"journal":{"name":"Physical review letters","volume":"56 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143915440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Nonmonotonic Motion of Sliding Droplets on Strained Soft Solids","authors":"Youchuang Chao, Hansol Jeon, Stefan Karpitschka","doi":"10.1103/physrevlett.134.184001","DOIUrl":"https://doi.org/10.1103/physrevlett.134.184001","url":null,"abstract":"Soft materials are ubiquitous in technological applications that require deformability, for instance, in flexible, water-repellent coatings. However, the wetting properties of prestrained soft materials are only beginning to be explored. Here we study the sliding dynamics of droplets on prestrained soft silicone gels, both in tension and in compression. Intriguingly, in compression we find a nonmonotonic strain dependence of the sliding speed: mild compressions decelerate the droplets, but stronger compressions lead again to faster droplet motion. Upon further compression, creases nucleate under the droplets until, finally, the entire surface undergoes the creasing instability, causing a “run-and-stop” motion. We quantitatively elucidate the speed modification for moderate prestrains by incremental viscoelasticity, while the acceleration for larger prestrains turns out to be linked to the solid pressure, presumably through a lubrication effect of expelled oligomers. <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":20069,"journal":{"name":"Physical review letters","volume":"2 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143915438","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Superconducting Levitated Detector of Gravitational Waves","authors":"Daniel Carney, Gerard Higgins, Giacomo Marocco, Michael Wentzel","doi":"10.1103/physrevlett.134.181402","DOIUrl":"https://doi.org/10.1103/physrevlett.134.181402","url":null,"abstract":"A magnetically levitated mass couples to gravity and can act as an effective gravitational wave detector. We show that a superconducting sphere levitated in a quadrupolar magnetic field, when excited by a gravitational wave, will produce magnetic field fluctuations that can be read out using a flux tunable microwave resonator. With a readout operating at the standard quantum limit, such a system could achieve broadband strain noise sensitivity of h</a:mi>≲</a:mo>10</a:mn></a:mrow>−</a:mo>20</a:mn></a:mrow></a:msup>/</a:mo>Hz</a:mi></a:mrow></a:msqrt></a:mrow></a:math> for frequencies of 1 kHz–1 MHz, opening new corridors for astrophysical probes of new physics. <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":20069,"journal":{"name":"Physical review letters","volume":"25 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143915443","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Lattice QCD Study of Pion Electroproduction and Weak Production from a Nucleon","authors":"Yu-Sheng Gao, Zhao-Long Zhang, Xu Feng, Lu-Chang Jin, Chuan Liu, Ulf-G. Meißner","doi":"10.1103/physrevlett.134.171904","DOIUrl":"https://doi.org/10.1103/physrevlett.134.171904","url":null,"abstract":"Quantum fluctuations in QCD influence nucleon structure and interactions, with pion production serving as a key probe of chiral dynamics. In this Letter, we present a lattice QCD calculation of multipole amplitudes at threshold, related to both pion electroproduction and weak production from a nucleon, using two gauge ensembles near the physical pion mass. We develop a technique for spin projection and construct multiple operators for analyzing the generalized eigenvalue problem in both the nucleon-pion system in the center-of-mass frame and the nucleon system with nonzero momentum. The numerical lattice results are then compared with those extracted from experimental data and predicted by low-energy theorems incorporating one-loop corrections. <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":20069,"journal":{"name":"Physical review letters","volume":"11 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143898011","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Leading Axion-Photon Sensitivity with NuSTAR Observations of M82 and M87","authors":"Orion Ning, Benjamin R. Safdi","doi":"10.1103/physrevlett.134.171003","DOIUrl":"https://doi.org/10.1103/physrevlett.134.171003","url":null,"abstract":"We perform one of the most sensitive searches to date for the existence of ultralight axions using data from the NuSTAR telescope. We search for stellar axion production in the M82 starburst galaxy and the M87 central galaxy of the Virgo cluster and then the subsequent conversion into hard x-rays in the surrounding magnetic fields. We sum over the full stellar populations in these galaxies when computing the axion luminosity, and we account for the conversion of axions to photons by using magnetic field profiles in simulated IllustrisTNG analog galaxies. We show that analyzing NuSTAR data toward these targets between roughly 30 and 70 keV shows no evidence for axions and leads to robust constraints on the axion-photon coupling at the level of |</a:mo>g</a:mi></a:mrow>a</a:mi>γ</a:mi>γ</a:mi></a:mrow></a:msub>|</a:mo>≲</a:mo>7.8</a:mn>×</a:mo>10</a:mn></a:mrow>−</a:mo>13</a:mn></a:mrow></a:msup></a:mtext></a:mtext>GeV</a:mi></a:mrow>−</a:mo>1</a:mn></a:mrow></a:msup></a:mrow></a:mrow></a:math> for <e:math xmlns:e=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><e:mrow><e:msub><e:mrow><e:mi>m</e:mi></e:mrow><e:mrow><e:mi>a</e:mi></e:mrow></e:msub><e:mo>≲</e:mo><e:msup><e:mrow><e:mn>10</e:mn></e:mrow><e:mrow><e:mo>−</e:mo><e:mn>10</e:mn></e:mrow></e:msup><e:mtext> </e:mtext><e:mtext> </e:mtext><e:mi>eV</e:mi></e:mrow></e:math> at 95% confidence. <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":20069,"journal":{"name":"Physical review letters","volume":"8 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143897884","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Impact of Newly Measured β -Delayed Neutron Emitters around Ni78 on Light Element Nucleosynthesis in the Neutrino Wind Following a Neutron Star Merger","authors":"A. Tolosa-Delgado, J. L. Tain, M. Reichert, A. Arcones, M. Eichler, B. C. Rasco, N. T. Brewer, K. P. Rykaczewski, R. Yokoyama, R. Grzywacz, I. Dillmann, J. Agramunt, D. S. Ahn, A. Algora, H. Baba, S. Bae, C. G. Bruno, R. Caballero Folch, F. Calvino, P. J. Coleman-Smith, G. Cortes, T. Davinson, C. Domingo-Pardo, A. Estrade, N. Fukuda, S. Go, C. J. Griffin, J. Ha, O. Hall, L. Harkness-Brennan, T. Isobe, D. Kahl, M. Karny, L. H. Khiem, G. G. Kiss, M. Kogimtzis, A. Korgul, S. Kubono, M. Labiche, I. Lazarus, J. Liang, J. Lee, J. Liu, G. Lorusso, K. Matsui, K. Miernik, F. Montes, B. Moon, A. I. Morales, N. Nepal, S. Nishimura, R. D. Page, M. Piersa-Siłkowska, V. H. Phong, Zs. Podolyák, V. F. E. Pucknell, P. H. Regan, B. Rubio, Y. Saito, H. Sakurai, Y. Shimizu, J. Simpson, P.-A. Söderström, D. W. Stracener, T. Sumikama, R. Surman, H. Suzuki, M. Takechi, H. Takeda, A. Tarifeño-Saldivia, S. L. Thomas, M. Wolińska-Cichocka, P. J. Woods, X. X. Xu","doi":"10.1103/physrevlett.134.172701","DOIUrl":"https://doi.org/10.1103/physrevlett.134.172701","url":null,"abstract":"Neutron emission probabilities and half-lives of 37 β</a:mi></a:mrow></a:math>-delayed neutron emitters from <c:math xmlns:c=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><c:mrow><c:mmultiscripts><c:mrow><c:mi>Ni</c:mi></c:mrow><c:mprescripts/><c:none/><c:mrow><c:mn>75</c:mn></c:mrow></c:mmultiscripts></c:mrow></c:math> to <e:math xmlns:e=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><e:mrow><e:mmultiscripts><e:mrow><e:mi>Br</e:mi></e:mrow><e:mprescripts/><e:none/><e:mrow><e:mn>92</e:mn></e:mrow></e:mmultiscripts></e:mrow></e:math> were measured at the RIKEN Nishina Center in Japan, including 11 one-neutron and 13 two-neutron emission probabilities and six half-lives for the first time that supersede theoretical estimates. These nuclei lie in the path of the weak <g:math xmlns:g=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><g:mi>r</g:mi></g:math> process occurring in neutrino-driven winds from the accretion disk formed after the merger of two neutron stars synthesizing elements in the <i:math xmlns:i=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><i:mi>A</i:mi><i:mo>∼</i:mo><i:mn>80</i:mn></i:math> abundance peak. The presence of such elements dominates the accompanying kilonova emission over the first few days and have been identified in the AT2017gfo event, associated to the gravitational wave detection GW170817. Abundance calculations based on over 17 000 simulated trajectories describing the evolution of matter properties in the merger outflows show that the new data lead to an increase of 50%–70% in the abundance of Y, Zr, Nb, and Mo. This enhancement is large compared to the scatter of relative abundances observed in old very metal poor stars and thus is significant in the comparison with other possible astrophysical processes contributing to the light-element production. These results underline the importance of including experimental decay data for very neutron-rich <k:math xmlns:k=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><k:mi>β</k:mi></k:math>-delayed neutron emitters into <m:math xmlns:m=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><m:mi>r</m:mi></m:math>-process models. <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":20069,"journal":{"name":"Physical review letters","volume":"89 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143897885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Simulating Sparse Hamiltonians on 2D Lattices","authors":"Harriet Apel, Nouédyn Baspin","doi":"10.1103/physrevlett.134.170602","DOIUrl":"https://doi.org/10.1103/physrevlett.134.170602","url":null,"abstract":"Systems with sparse, yet long-range interactions, form a rich class capable of exhibiting various interesting physics, including good error correction. In this Letter we show how to simulate any sparse Pauli Hamiltonian with a 2D nearest neighbor Hamiltonian, using fewer resources than previous techniques. As an application we demonstrate how to simulate a good quantum code Hamiltonian, effectively approximating a [</a:mo>[</a:mo>N</a:mi>,</a:mo>Ω</a:mi>(</a:mo>N</a:mi></a:mrow></a:msqrt>)</a:mo>,</a:mo>Ω</a:mi>(</a:mo>N</a:mi></a:mrow></a:msqrt>)</a:mo>]</a:mo>]</a:mo></a:mrow></a:math> code in two dimensions. <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":20069,"journal":{"name":"Physical review letters","volume":"12 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143897847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"NuSTAR Bounds on Radiatively Decaying Particles from M82","authors":"Francisco R. Candón, Damiano F. G. Fiorillo, Giuseppe Lucente, Edoardo Vitagliano, Julia K. Vogel","doi":"10.1103/physrevlett.134.171004","DOIUrl":"https://doi.org/10.1103/physrevlett.134.171004","url":null,"abstract":"Axions and other putative feebly interacting particles with a mass of tens to several hundreds of keVs can be produced in stellar cores with a Lorentz boost factor E</a:mi></a:mrow>a</a:mi></a:mrow></a:msub>/</a:mo>m</a:mi></a:mrow>a</a:mi></a:mrow></a:msub>≲</a:mo>10</a:mn></a:mrow></a:math>. Thus, starburst galaxies such as M82 are efficient factories of slow axions. Their decay <c:math xmlns:c=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><c:mi>a</c:mi><c:mo stretchy=\"false\">→</c:mo><c:mi>γ</c:mi><c:mi>γ</c:mi></c:math> would produce a large flux of x-ray photons, peaking around 100 keV and spread around the Galaxy by an angle that can be relatively large. We use observations of the Nuclear Spectroscopic Telescope Array mission to show that the absence of these features can constrain 30–500 keV axion masses into uncharted regions for axion-photon coupling of <f:math xmlns:f=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><f:mrow><f:msub><f:mrow><f:mi>g</f:mi></f:mrow><f:mrow><f:mi>a</f:mi><f:mi>γ</f:mi></f:mrow></f:msub><f:mo>∼</f:mo><f:msup><f:mrow><f:mn>10</f:mn></f:mrow><f:mrow><f:mo>−</f:mo><f:mn>10</f:mn></f:mrow></f:msup><f:mi>–</f:mi><f:msup><f:mrow><f:mn>10</f:mn></f:mrow><f:mrow><f:mo>−</f:mo><f:mn>12</f:mn></f:mrow></f:msup><f:mtext> </f:mtext><f:mtext> </f:mtext><f:msup><f:mrow><f:mi>GeV</f:mi></f:mrow><f:mrow><f:mo>−</f:mo><f:mn>1</f:mn></f:mrow></f:msup></f:mrow></f:math>. Our argument can be applied to other heavy feebly interacting particles and astrophysical sources that are hot enough to produce them, yet cold enough to avoid large boost factors which slow down the decay. <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":20069,"journal":{"name":"Physical review letters","volume":"38 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143897726","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Heavy-Flavor Angular Correlations as a Direct Probe of the Glasma","authors":"Dana Avramescu, Vincenzo Greco, Tuomas Lappi, Heikki Mäntysaari, David Müller","doi":"10.1103/physrevlett.134.172301","DOIUrl":"https://doi.org/10.1103/physrevlett.134.172301","url":null,"abstract":"We use classical equations of motion for heavy quarks to show that the preequilibrium glasma phase of a heavy ion collision has an extremely strong effect on heavy quark angular correlations. At the same time the effect on the single inclusive spectrum is much more moderate. This suggests that D</a:mi>D</a:mi>¯</a:mo></a:mover></a:math> meson angular correlations in future LHC measurements could provide a direct experimental access to the physics of the preequilibrium stage. <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":20069,"journal":{"name":"Physical review letters","volume":"46 1","pages":""},"PeriodicalIF":8.6,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143889476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}