Search for vector-like quarks in events with two oppositely charged leptons and jets in proton-proton collisions at root s=13TeV
- Title
- Search for vector-like quarks in events with two oppositely charged leptons and jets in proton-proton collisions at root s=13TeV
- Author
- 김태정
- Keywords
- PHYSICS; MASS
- Issue Date
- 2019-04
- Publisher
- SPRINGER
- Citation
- EUROPEAN PHYSICAL JOURNAL C, v. 79, NO 4, no. 364
- Abstract
- A search for the pair production of heavy vector-like partners T and B of the top and bottom quarks has been performed by the CMS experiment at the CERN LHC using proton-proton collisions at . The data sample was collected in 2016 and corresponds to an integrated luminosity of 35.9 production include those where one of the T quarks decays via TtZ and the other via TbW, tZ, or tH, where H is a Higgs boson. For the BB case, final states include those where one of the B quarks decays via BbZ and the other BtW, bZ, or bH. Events with two oppositely charged electrons or muons, consistent with coming from the decay of a Z boson, and jets are investigated. The number of observed events is consistent with standard model background estimations. Lower limits at 95% confidence level are placed on the masses of the T and B quarks for a range of branching fractions. Assuming 100% branching fractions for TtZ, and BbZ, T and B quark mass values below 1280 and 1130 respectively, are excluded.
- URI
- https://link.springer.com/article/10.1140%2Fepjc%2Fs10052-019-6855-8https://repository.hanyang.ac.kr/handle/20.500.11754/110648
- ISSN
- 1434-6044; 1434-6052
- DOI
- 10.1140/epjc/s10052-019-6855-8
- Appears in Collections:
- COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > PHYSICS(물리학과) > Articles
- Files in This Item:
- Search for vector-like quarks in events with two oppositely charged leptons and jets in proton-proton collisions at root s=13TeV.pdfDownload
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