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First Evidence for Mixing-Induced (Formula presented) Violation in (Formula presented) Decays in (Formula presented) Collisions at (Formula presented)

ArticleAçık Erişim

Özet

A novel machine-learning-based flavor-tagging algorithm combining same-side and opposite-side tagging is used to obtain the equivalent of 27 500 tagged (Formula presented) decays from (Formula presented) collisions at (Formula presented), collected by the CMS experiment and corresponding to an integrated luminosity of (Formula presented). A time- and flavor-dependent angular analysis of the (Formula presented) final state, consistent with a (Formula presented) decay, is used to measure parameters of the (Formula presented) system. The weak phase is measured to be (Formula presented), which, combined with the (Formula presented) CMS result, gives (Formula presented). This value differs from zero by 3.2 standard deviations, providing the first evidence for mixing-induced (Formula presented) violation in (Formula presented) decays. All measured physics parameters are found to agree with standard model predictions where available. © 2026 CERN, for the CMS Collaboration.

Anahtar Kelimeler

Decay (organic)Learning systemsAngular analysisFinal stateIntegrated luminosityMachine-learningModel predictionStandard deviationStandard modelarticlediagnosishumanMixing
RDL Kalıcı Bağlantı (PID)
https://rdlopen.rawdatalibrary.net/r/ebyu/10378Resmi atıflarda kullanılan kalıcı adres
DOI
https://doi.org/10.1103/ctqx-vxrjYayıncı resmi DOI adresi
Tam Kayıt
AlanDeğerDil
dc.contributor.authorHayrapetyan, A.
dc.contributor.authorTumasyan, A.
dc.contributor.authorAdam, W.
dc.contributor.authorAndrejkovic, J.W.
dc.contributor.authorBenato, L.
dc.contributor.authorBergauer, T.
dc.contributor.authorChatterjee, S.
dc.contributor.authorDamanakis, K.
dc.contributor.authorDragicevic, M.
dc.contributor.authorHussain, P.S.
dc.contributor.authorJeitler, M.
dc.contributor.authorKrammer, N.
dc.contributor.authorLi, A.
dc.contributor.authorLiko, D.
dc.contributor.authorMikulec, I.
dc.contributor.authorSchieck, J.
dc.contributor.authorSchöfbeck, R.
dc.contributor.authorSchwarz, D.
dc.contributor.authorSonawane, M.
dc.contributor.authorWaltenberger, W.
dc.contributor.authorWulz, C.-E.
dc.contributor.authorJanssen, T.
dc.contributor.authorVan Laer, T.
dc.contributor.authorVan Mechelen, P.
dc.contributor.authorBreugelmans, N.
dc.contributor.authorD’Hondt, J.
dc.contributor.authorDansana, S.
dc.contributor.authorDe Moor, A.
dc.contributor.authorDelcourt, M.
dc.contributor.authorHeyen, F.
dc.contributor.authorLowette, S.
dc.contributor.authorMakarenko, I.
dc.contributor.authorMüller, D.
dc.contributor.authorTavernier, S.
dc.contributor.authorTytgat, M.
dc.contributor.authorVan Onsem, G.P.
dc.contributor.authorVan Putte, S.
dc.contributor.authorVannerom, D.
dc.contributor.authorBilin, B.
dc.contributor.authorClerbaux, B.
dc.contributor.authorDas, A.K.
dc.contributor.authorDe Bruyn, I.
dc.contributor.authorDe Lentdecker, G.
dc.contributor.authorEvard, H.
dc.contributor.authorFavart, L.
dc.contributor.authorGianneios, P.
dc.contributor.authorJaramillo, J.
dc.contributor.authorKhalilzadeh, A.
dc.contributor.authorKhan, F.A.
dc.contributor.authorLee, K.
dc.date.accessioned2026-10-18T20:25:36.341537533Z
dc.date.available2026-10-18T20:25:36.341537533Z
dc.date.issued2026
dc.description.abstractA novel machine-learning-based flavor-tagging algorithm combining same-side and opposite-side tagging is used to obtain the equivalent of 27 500 tagged (Formula presented) decays from (Formula presented) collisions at (Formula presented), collected by the CMS experiment and corresponding to an integrated luminosity of (Formula presented). A time- and flavor-dependent angular analysis of the (Formula presented) final state, consistent with a (Formula presented) decay, is used to measure parameters of the (Formula presented) system. The weak phase is measured to be (Formula presented), which, combined with the (Formula presented) CMS result, gives (Formula presented). This value differs from zero by 3.2 standard deviations, providing the first evidence for mixing-induced (Formula presented) violation in (Formula presented) decays. All measured physics parameters are found to agree with standard model predictions where available. © 2026 CERN, for the CMS Collaboration.
dc.description.sponsorshipWe congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC and thank the technical and administrative staffs at CERN and at other CMS institutes for their contributions to the success of the CMS effort. In addition, we gratefully acknowledge the computing centers and personnel of the Worldwide LHC Computing Grid and other centers for delivering so effectively the computing infrastructure essential to our analyses. Finally, we acknowledge the enduring support for the construction and operation of the LHC, the CMS detector, and the supporting computing infrastructure provided by the following funding agencies: SC (Armenia), BMBWF and FWF (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, FAPERGS, and FAPESP (Brazil); MES and BNSF (Bulgaria); CERN; CAS, MoST, and NSFC (China); MINCIENCIAS (Colombia); MSES and CSF (Croatia); RIF (Cyprus); SENESCYT (Ecuador); ERC PRG, RVTT3, and MoER TK202 (Estonia); Academy of Finland, MEC, and HIP (Finland); CEA and CNRS/IN2P3 (France); SRNSF (Georgia); BMBF, DFG, and HGF (Germany); GSRI (Greece); NKFIH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); MSIP and NRF (Republic of Korea); MES (Latvia); LMTLT (Lithuania); MOE and UM (Malaysia); BUAP, CINVESTAV, CONACYT, LNS, SEP, and UASLP-FAI (Mexico); MOS (Montenegro); MBIE (New Zealand); PAEC (Pakistan); MES and NSC (Poland); FCT (Portugal); MESTD (Serbia); MCIN/AEI and PCTI (Spain); MOSTR (Sri Lanka); Swiss Funding Agencies (Switzerland); MST (Taipei); MHESI and NSTDA (Thailand); TUBITAK and TENMAK (Turkey); NASU (Ukraine); STFC (United Kingdom); DOE and NSF (USA).
dc.identifier.doi10.1103/ctqx-vxrj
dc.identifier.issn0031-9007
dc.identifier.issue18
dc.identifier.pmid42172397
dc.identifier.scopus2-s2.0-105038901708
dc.identifier.startpage181801
dc.identifier.urihttps://rdlopen.rawdatalibrary.net/r/ebyu/10378
dc.identifier.volume136
dc.language.isoen
dc.publisherAmerican Physical Society
dc.relation.ispartofPhysical Review Letters
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectDecay (organic)
dc.subjectLearning systems
dc.subjectAngular analysis
dc.subjectFinal state
dc.subjectIntegrated luminosity
dc.subjectMachine-learning
dc.subjectModel prediction
dc.subjectStandard deviation
dc.subjectStandard model
dc.subjectarticle
dc.subjectdiagnosis
dc.subjecthuman
dc.subjectMixing
dc.titleFirst Evidence for Mixing-Induced (Formula presented) Violation in (Formula presented) Decays in (Formula presented) Collisions at (Formula presented)
dc.typeArticle
dspace.entity.typePublication
rdl.citation.scopus1
rdl.oa.statusgold
rdl.source.indexSCOPUS