Search for electroweak production of a vector-like quark decaying to a top quark and a higgs boson using boosted topologies in fully hadronic final states
文献类型：期刊论文
| 作者 | Sirunyan, A. M.1; Tumasyan, A.1; Adam, W.2; Asilar, E.2; Bergauer, T.2; Brandstetter, J.2; Brondolin, E.2; Dragicevic, M.2; Eroe, J.2; Flechl, M.2 |
| 刊名 | Journal of high energy physics
 |
| 出版日期 | 2017-04-21 |
| 期号 | 4页码:36 |
| 关键词 | Beyond standard model Hadron-hadron scattering (experiments) Top physics |
| ISSN号 | 1029-8479 |
| DOI | 10.1007/jhep04(2017)136 |
| 英文摘要 | A search is performed for electroweak production of a vector-like top quark partner t of charge 2/3 in association with a standard model top or bottom quark, using 2.3 fb(-1) of proton-proton collision data at tev collected by the cms experiment at the cern lhc. the search targets t quarks decaying to a top quark and a higgs boson in fully hadronic final states. for a t quark with mass above 1 tev the daughter top quark and higgs boson are highly lorentz-boosted and can each appear as a single hadronic jet. jet substructure and b tagging techniques are used to identify the top quark and higgs boson jets, and to suppress the standard model backgrounds. an excess of events is searched for in the t quark candidate mass distribution in the data, which is found to be consistent with the expected backgrounds. upper limits at 95% confidence level are set on the product of the single t quark production cross sections and the branching fraction , and these vary between 0.31 and 0.93 pb for t quark masses in the range 1000-1800 gev. this is the first search for single electroweak production of a vector-like t quark in fully hadronic final states. |
| WOS关键词 | GEANT4 |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Particles & Fields |
| 语种 | 英语 |
| WOS记录号 | WOS:000400131800001 |
| 出版者 | SPRINGER |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2177436 |
| 专题 | 高能物理研究所 |
| 作者单位 | 1.Yerevan Phys Inst, Yerevan, Armenia 2.Inst Hochenergiephys, Vienna, Austria 3.Inst Nucl Problems, Minsk, Byelarus 4.Natl Ctr Particle & High Energy Phys, Minsk, Byelarus 5.Univ Antwerp, Antwerp, Belgium 6.Vrije Univ Brussel, Brussels, Belgium 7.Univ Libre Bruxelles, Brussels, Belgium 8.Univ Ghent, Ghent, Belgium 9.Catholic Univ Louvain, Louvain La Neuve, Belgium 10.Univ Mons, Mons, Belgium |
| 推荐引用方式 GB/T 7714 | Sirunyan, A. M.,Tumasyan, A.,Adam, W.,et al. Search for electroweak production of a vector-like quark decaying to a top quark and a higgs boson using boosted topologies in fully hadronic final states[J]. Journal of high energy physics,2017(4):36. |
| APA | Sirunyan, A. M..,Tumasyan, A..,Adam, W..,Asilar, E..,Bergauer, T..,...&Uribe Estrada, C..(2017).Search for electroweak production of a vector-like quark decaying to a top quark and a higgs boson using boosted topologies in fully hadronic final states.Journal of high energy physics(4),36. |
| MLA | Sirunyan, A. M.,et al."Search for electroweak production of a vector-like quark decaying to a top quark and a higgs boson using boosted topologies in fully hadronic final states".Journal of high energy physics .4(2017):36. |
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