Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.13091/5370
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dc.contributor.authorHayrapetyan, A.-
dc.contributor.authorTumasyan, A.-
dc.contributor.authorAdam, W.-
dc.contributor.authorAndrejkovic, J. W.-
dc.contributor.authorBergauer, T.-
dc.contributor.authorChatterjee, S.-
dc.contributor.authorDamanakis, K.-
dc.date.accessioned2024-04-20T13:05:04Z-
dc.date.available2024-04-20T13:05:04Z-
dc.date.issued2023-
dc.identifier.issn0031-9007-
dc.identifier.issn1079-7114-
dc.identifier.urihttps://doi.org/10.1103/PhysRevLett.131.091903-2-
dc.identifier.urihttps://hdl.handle.net/20.500.13091/5370-
dc.description.abstractA search for the rare ri -> mu(+) mu(-) mu(+) mu(-) double-Dalitz decay is performed using a sample of proton-proton collisions, collected by the CMS experiment at the CERN LHC with high-rate muon triggers during 2017 and 2018 and corresponding to an integrated luminosity of 101 fb(-1). A signal having a statistical significance well in excess of 5 standard deviations is observed. Using the eta -> mu+ mu(-) decay as normalization, the branching fraction B(eta -> mu(+) mu(-) mu(+) mu(-) = [5.0 +/- 0.8 (stat) +/- 0.7 (syst) +/- 0.7(B-2 mu)] x 10(-9) is measured, where the last term is the uncertainty in the normalization channel branching fraction. This work achieves an improved precision of over 5 orders of magnitude compared to previous results, leading to the first measurement of this branching fraction, which is found to agree with theoretical predictions.en_US
dc.description.sponsorshipRIF (Cyprus); SENESCYT (Ecuador); MoER, ERC PUT; ERDF (Estonia); Academy of Finland; MEC; CEA; CNRS/IN2P3 (France); BMBF; DFG; HGF (Germany); NKFIH (Hungary); DAE; DST; IPM; SFI (Ireland); INFN (Italy); NRF (Republic of Korea); MES (Latvia); MOE; UM (Malaysia); BUAP; CONACYT; UASLP-FAI (Mexico); MBIE (New Zealand); PAEC (Pakistan); FCT (Portugal); NASU (Ukraine); DOE; NSF (USA)en_US
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 WorldwideLHC 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: 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); MoER, ERC PUT, and ERDF (Estonia); Academy of Finland, MEC, and HIP (Finland); CEA and CNRS/IN2P3 (France);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); LAS (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); ENMAK (Turkey); NASU (Ukraine);STFC (United Kingdom); DOE and NSF (USA).r (Croatia) ; RIF (Cyprus) ; SENESCYT (Ecuador) ; MoER, ERC PUT, and ERDF (Estonia) ; Academy of Finland, MEC, and HIP (Finland) ; CEA and CNRS/IN2P3 (France) ; 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) ; LAS (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) ; ENMAK (Turkey) ; NASU (Ukraine) ; STFC (United Kingdom) ; DOE and NSF (USA) .en_US
dc.language.isoenen_US
dc.publisherAmer Physical Socen_US
dc.relation.ispartofPhysical Review Lettersen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectDegenerate Electronic Statesen_US
dc.subjectPolyatomic-Moleculesen_US
dc.subjectQuantum Simulationsen_US
dc.subjectUltracold Atomsen_US
dc.subjectInformationen_US
dc.subjectStabilityen_US
dc.subjectGatesen_US
dc.titleObservation of the Rare Decay of the η Meson to Four Muons [2]en_US
dc.typeArticleen_US
dc.identifier.doi10.1103/PhysRevLett.131.091903-2-
dc.departmentKTÜNen_US
dc.authoridKaur, Manjit/0000-0002-3440-2767-
dc.identifier.volume131en_US
dc.identifier.issue9en_US
dc.identifier.wosWOS:001127288800001en_US
dc.institutionauthor…-
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextNo Fulltext-
item.languageiso639-1en-
item.openairetypeArticle-
item.grantfulltextnone-
item.cerifentitytypePublications-
Appears in Collections:WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collections
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