Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.
VenuePhysical review. D/Physical review. D. · 2024
Typearticle
Languageen
FieldPhysics and Astronomy
TopicParticle physics theoretical and experimental studies
Canadian institutionsInstitute of Particle Physics
FundersInstitut National de Physique Nucléaire et de Physique des ParticulesAgencia Estatal de InvestigaciónCentro de Investigaciones Energéticas, Medioambientales y TecnológicasCentro de Investigación y de Estudios Avanzados del Instituto Politécnico NacionalUniversité Catholique de LouvainFonds pour la Formation à la Recherche dans l’Industrie et dans l’AgricultureFundação para a Ciência e a TecnologiaDeutsches Elektronen-SynchrotronEuropean Research CouncilFundamental Research Funds for the Central UniversitiesScience and Technology Facilities CouncilHorizon 2020 Framework ProgrammeQatar National Research FundUniversity of Colorado BoulderWigner Fizikai Kutatóközpont, Magyar Tudományos AkadémiaLaboratorio Nacional de Supercómputo del Sureste de MexicoCentro Svizzero di Calcolo ScientificoInstituto de Física de CantabriaMinistry of Higher Education, Science, Research and Innovation, ThailandNemzeti Kutatási Fejlesztési és Innovációs HivatalAcademy of FinlandLietuvos Mokslų AkademijaBrunel University LondonUniversity of GlasgowChulalongkorn UniversityRWTH Aachen UniversityUniversity of IoanninaUniversity of Wisconsin-MadisonMinistarstvo Znanosti, Obrazovanja i SportaCommissariat à l'Énergie Atomique et aux Énergies AlternativesFermilabA.G. Leventis FoundationBenemérita Universidad Autónoma de PueblaInstitute for Research in Fundamental SciencesAlexander von Humboldt-StiftungMinistry of Business, Innovation and EmploymentMinistry of Education and ScienceUniversidad Autónoma de San Luis PotosíShota Rustaveli National Science FoundationMinistry of Science and Technology, TaiwanInstituto Nazionale di Fisica NucleareMinistarstvo Prosvete, Nauke i Tehnološkog RazvojaUniversiti MalayaFundação de Amparo à Pesquisa do Estado do Rio Grande do SulOrta Doğu Teknik ÜniversitesiMagyar Tudományos AkadémiaJoint Institute for Nuclear ResearchGeneral Secretariat for Research and TechnologyBulgarian National Science FundH2020 Marie Skłodowska-Curie ActionsMinistry of Science, ICT and Future PlanningMinisterio de Ciencia e InnovaciónQuaid-i-Azam UniversityConsejo Nacional de Ciencia y TecnologíaFonds Wetenschappelijk OnderzoekNational Academy of Sciences of UkraineUniversity of BristolOpetus- ja KulttuuriministeriöBelgian Federal Science Policy OfficeMinisterstwo Edukacji i NaukiInstitute of High Energy PhysicsNarodowe Centrum NaukiUniversity of California, San DiegoConselho Nacional de Desenvolvimento Científico e TecnológicoFonds De La Recherche Scientifique - FNRSAustrian Science FundCentre National de la Recherche ScientifiqueKementerian Pendidikan MalaysiaUniversidade do Estado do Rio de JaneiroKyungpook National UniversityNational Science CouncilFonds National de la Recherche LuxembourgLatvijas Zinātnes PadomeMinistry of Science and Technology of the People's Republic of ChinaIzglītības un zinātnes ministrijaMinisterio de Economía y CompetitividadBundesministerium für Bildung und ForschungHellenic Foundation for Research and InnovationMinisterstvo Školství, Mládeže a TělovýchovyKarlsruhe Institute of TechnologyCoordenação de Aperfeiçoamento de Pessoal de Nível SuperiorEuropean CommissionBeijing Municipal Science and Technology CommissionFundação de Amparo à Pesquisa do Estado de São PauloChinese Academy of SciencesDeutsche ForschungsgemeinschaftAgentschap voor Innovatie door Wetenschap en TechnologieHelsinki Institute of PhysicsTata Institute of Fundamental ResearchDepartment of Science and Technology, Ministry of Science and Technology, IndiaWelch FoundationMinisterio de Ciencia, Tecnología e InnovaciónImperial College LondonHelmholtz-GemeinschaftNational Energy Research Scientific Computing CenterRoyal Holloway, University of LondonMinistry of Science,Technology and ResearchKavli FoundationSan Diego Supercomputer CenterKeemilise ja Bioloogilise Füüsika InstituutBundesministerium für Bildung, Wissenschaft und ForschungSecretaría de Educación PúblicaTürkiye Bilimsel ve Teknolojik Araştırma KurumuRutherford Appleton LaboratoryMassachusetts Institute of TechnologyUniversity of FloridaNational Natural Science Foundation of ChinaNvidiaAlfred P. Sloan FoundationBaylor UniversityNational Science and Technology Development AgencyNational Research Foundation of KoreaFundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de JaneiroPakistan Atomic Energy CommissionCalifornia Institute of TechnologyU.S. Department of EnergyUniversity of Nebraska-LincolnNational Science FoundationPurdue UniversityCERNMinistry of Education, IndiaVanderbilt UniversityUniversity of OxfordSecretaría de Educación Superior, Ciencia, Tecnología e InnovaciónKorea Institute of Science and Technology InformationEuropean Regional Development FundEuropean Cooperation in Science and TechnologyWeston Havens FoundationQueen Mary University of LondonScience Foundation IrelandTürkiye Enerji, Nükleer ve Maden Araştırma KurumuDepartment of Atomic Energy, Government of India
KeywordsPhysicsLeptonParticle physicsProtonNuclear physicsPolarization (electrochemistry)Quantum entanglementQuarkElectronChemistryQuantum
Abstract
fetched live from OpenAlexMeasurements of the polarization and spin correlation in top quark pairs (<a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mi>t</a:mi><a:mover accent="true"><a:mi>t</a:mi><a:mo stretchy="false">¯</a:mo></a:mover></a:math>) are presented using events with a single electron or muon and jets in the final state. The measurements are based on proton-proton collision data from the LHC at <e:math xmlns:e="http://www.w3.org/1998/Math/MathML" display="inline"><e:msqrt><e:mi>s</e:mi></e:msqrt><e:mo>=</e:mo><e:mn>13</e:mn><e:mtext> </e:mtext><e:mtext> </e:mtext><e:mi>TeV</e:mi></e:math> collected by the CMS experiment, corresponding to an integrated luminosity of <g:math xmlns:g="http://www.w3.org/1998/Math/MathML" display="inline"><g:mn>138</g:mn><g:mtext> </g:mtext><g:mtext> </g:mtext><g:msup><g:mi>fb</g:mi><g:mrow><g:mo>−</g:mo><g:mn>1</g:mn></g:mrow></g:msup></g:math>. All coefficients of the polarization vectors and the spin correlation matrix are extracted simultaneously by performing a binned likelihood fit to the data. The measurement is performed inclusively and in bins of additional observables, such as the mass of the <i:math xmlns:i="http://www.w3.org/1998/Math/MathML" display="inline"><i:mi>t</i:mi><i:mover accent="true"><i:mi>t</i:mi><i:mo stretchy="false">¯</i:mo></i:mover></i:math> system and the top quark scattering angle in the <m:math xmlns:m="http://www.w3.org/1998/Math/MathML" display="inline"><m:mi>t</m:mi><m:mover accent="true"><m:mi>t</m:mi><m:mo stretchy="false">¯</m:mo></m:mover></m:math> rest frame. The measured polarization and spin correlation are in agreement with the standard model. From the measured spin correlation, conclusions on the <q:math xmlns:q="http://www.w3.org/1998/Math/MathML" display="inline"><q:mi>t</q:mi><q:mover accent="true"><q:mi>t</q:mi><q:mo stretchy="false">¯</q:mo></q:mover></q:math> spin entanglement are drawn by applying the Peres-Horodecki criterion. The standard model predicts entangled spins for <u:math xmlns:u="http://www.w3.org/1998/Math/MathML" display="inline"><u:mi>t</u:mi><u:mover accent="true"><u:mi>t</u:mi><u:mo stretchy="false">¯</u:mo></u:mover></u:math> states at the production threshold and at high masses of the <y:math xmlns:y="http://www.w3.org/1998/Math/MathML" display="inline"><y:mi>t</y:mi><y:mover accent="true"><y:mi>t</y:mi><y:mo stretchy="false">¯</y:mo></y:mover></y:math> system. Entanglement is observed for the first time in events at high <cb:math xmlns:cb="http://www.w3.org/1998/Math/MathML" display="inline"><cb:mi>t</cb:mi><cb:mover accent="true"><cb:mi>t</cb:mi><cb:mo stretchy="false">¯</cb:mo></cb:mover></cb:math> mass, where a large fraction of the <gb:math xmlns:gb="http://www.w3.org/1998/Math/MathML" display="inline"><gb:mi>t</gb:mi><gb:mover accent="true"><gb:mi>t</gb:mi><gb:mo stretchy="false">¯</gb:mo></gb:mover></gb:math> decays are spacelike separated, with an expected and observed significance of above 5 standard deviations. © 2024 CERN, for the CMS Collaboration 2024 CERN
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
metaresearch head score (Codex)0.003
metaresearch head score (Gemma)0.002
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Science and technology studies, Scholarly communication, Research integrity, Insufficient payload (model declined to judge)
Consensus categoriesMeta-epidemiology (narrow), Research integrity, Insufficient payload (model declined to judge)
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Theoretical or conceptual · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.945
Threshold uncertainty score1.000
Codex and Gemma teacher scores by category
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
Teacher spread0.283 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it
