Search for lepton-flavour-violating decays of the Higgs boson
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Khachatryan, V | - |
dc.contributor.author | Sirunyan, AM | - |
dc.contributor.author | Tumasyan, A | - |
dc.contributor.author | Adam, W | - |
dc.contributor.author | Bergauer, T | - |
dc.contributor.author | Dragicevic, M | - |
dc.contributor.author | Eroe, J | - |
dc.contributor.author | Friedl, M | - |
dc.contributor.author | Fruhwirth, R | - |
dc.contributor.author | Kim, Tae Jeong | - |
dc.date.accessioned | 2022-07-07T04:02:02Z | - |
dc.date.available | 2022-07-07T04:02:02Z | - |
dc.date.created | 2021-05-14 | - |
dc.date.issued | 2015-10 | - |
dc.identifier.issn | 0370-2693 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/142904 | - |
dc.description.abstract | The first direct search for lepton-flavour-violating decays of the recently discovered Higgs boson (H) is described. The search is performed in the H -˃ mu tau(e) and H -˃ mu tau(h) channels, where tau(e) and tau(h) are tau leptons reconstructed in the electronic and hadronic decay channels, respectively. The data sample used in this search was collected in pp collisions at a centre-of-mass energy of root s = 8 TeV with the CMS experiment at the CERN LHC and corresponds to an integrated luminosity of 19.7 fb(-1). The sensitivity of the search is an order of magnitude better than the existing indirect limits. A slight excess of signal events with a significance of 2.4 standard deviations is observed. The p-value of this excess at M-H = 125 GeV is 0.010. The best fit branching fraction is beta(H -˃ mu tau) = (0.84(-0.37)(+0.39))%. A constraint on the branching fraction, beta(H -˃ mu tau) ˂ 1.51% at 95% confidence level is set. This limit is subsequently used to constrain the mu-tau Yukawa couplings to be less than 3.6 x 10(-3). | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.title | Search for lepton-flavour-violating decays of the Higgs boson | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, Tae Jeong | - |
dc.identifier.doi | 10.1016/j.physletb.2015.07.053 | - |
dc.identifier.scopusid | 2-s2.0-85041788268 | - |
dc.identifier.wosid | 000361562900048 | - |
dc.identifier.bibliographicCitation | PHYSICS LETTERS B, v.749, pp.337 - 362 | - |
dc.relation.isPartOf | PHYSICS LETTERS B | - |
dc.citation.title | PHYSICS LETTERS B | - |
dc.citation.volume | 749 | - |
dc.citation.startPage | 337 | - |
dc.citation.endPage | 362 | - |
dc.type.rims | ART | - |
dc.type.docType | 정기학술지(Article(Perspective Article포함)) | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | Y | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Astronomy & Astrophysics | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Astronomy & Astrophysics | - |
dc.relation.journalWebOfScienceCategory | Physics | - |
dc.relation.journalWebOfScienceCategory | NuclearPhysics | - |
dc.relation.journalWebOfScienceCategory | Particles & Fields | - |
dc.subject.keywordAuthor | CMS | - |
dc.subject.keywordAuthor | Higgs | - |
dc.subject.keywordAuthor | Lepton-flavour-violation | - |
dc.subject.keywordAuthor | Muons | - |
dc.subject.keywordAuthor | Physics | - |
dc.subject.keywordAuthor | Taus | - |
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