Search for long-lived particles that decay into final states containing two electrons or two muons in proton-proton collisions at root s=8Tev
DC Field | Value | Language |
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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 | Fruehwirth, R | - |
dc.contributor.author | Kim, Tae Jeong | - |
dc.date.accessioned | 2022-07-07T04:44:46Z | - |
dc.date.available | 2022-07-07T04:44:46Z | - |
dc.date.created | 2021-05-13 | - |
dc.date.issued | 2015-03 | - |
dc.identifier.issn | 1550-7998 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/143227 | - |
dc.description.abstract | A search is performed for long-lived particles that decay into final states that include a pair of electrons or a pair of muons. The experimental signature is a distinctive topology consisting of a pair of charged leptons originating from a displaced secondary vertex. Events corresponding to an integrated luminosity of 19.6 (20.5) fb(-1) in the electron (muon) channel were collected with the CMS detector at the CERN LHC in proton-proton collisions at root s TeV. No significant excess is observed above standard model expectations. Upper limits on the product of the cross section and branching fraction of such a signal are presented as a function of the long-lived particle's mean proper decay length. The limits are presented in an approximately model-independent way, allowing them to be applied to a wide class of models yielding the above topology. Over much of the investigated parameter space, the limits obtained are the most stringent to date. In the specific case of a model in which a Higgs boson in the mass range 125-1000 GeV/c(2) decays into a pair of long-lived neutral bosons in the mass range 20-350 GeV= c(2), each of which can then decay to dileptons, the upper limits obtained are typically in the range 0.2-10 fb for mean proper decay lengths of the long-lived particles in the range 0.01-100 cm. In the case of the lowest Higgs mass considered (125 GeV/c(2)), the limits are in the range 2-50 fb. These limits are sensitive to Higgs boson branching fractions as low as 10(-1). | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | AMER PHYSICAL SOC | - |
dc.title | Search for long-lived particles that decay into final states containing two electrons or two muons in proton-proton collisions at root s=8Tev | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, Tae Jeong | - |
dc.identifier.doi | 10.1103/PhysRevD.91.052012 | - |
dc.identifier.scopusid | 2-s2.0-84927587727 | - |
dc.identifier.wosid | 000352154400001 | - |
dc.identifier.bibliographicCitation | PHYSICAL REVIEW D, v.91, no.5, pp.11 - 25 | - |
dc.relation.isPartOf | PHYSICAL REVIEW D | - |
dc.citation.title | PHYSICAL REVIEW D | - |
dc.citation.volume | 91 | - |
dc.citation.number | 5 | - |
dc.citation.startPage | 11 | - |
dc.citation.endPage | 25 | - |
dc.type.rims | ART | - |
dc.type.docType | 정기 학술지(기타) | - |
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, Particles & Fields | - |
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