Search for pair production of vector-like t and b quarks in single-lepton final states using boosted jet substructure in proton-proton collisions at root s=13 tev
文献类型：期刊论文
| 作者 | Sirunyan, A. M.1; Tumasyan, A.1; Adam, W.2; Ambrogi, F.2; Asilar, E.2; Bergauer, T.2; Brandstetter, J.2; Brondolin, E.2; Drag-Icevic, M.2; Eroe, J.2 |
| 刊名 | Journal of high energy physics
 |
| 出版日期 | 2017-11-15 |
| 期号 | 11页码:48 |
| ISSN号 | 1029-8479 |
| 关键词 | Hadron-hadron scattering (experiments) Heavy quark production Vector-like quarks |
| DOI | 10.1007/jhep11(2017)085 |
| 通讯作者 | Sirunyan, a. m.() |
| 英文摘要 | A search for pair production of massive vector-like t and b quarks in proton-proton collisions at root s = 13 tev is presented. the data set was collected in 2015 by the cms experiment at the lhc and corresponds to an integrated luminosity of up to 2.6 fb(-1). the t and b quarks are assumed to decay through three possible channels into a heavy boson (either a w, z or higgs boson) and a third generation quark. this search is performed in final states with one charged lepton and several jets, exploiting techniques to identify w or higgs bosons decaying hadronically with large transverse momenta. no excess over the predicted standard model background is observed. upper limits at 95% confidence level on the t quark pair production cross section are set that exclude t quark masses below 860 gev in the singlet, and below 830 gev in the doublet branching fraction scenario. for other branching fraction combinations with b (t -> th) + b(t -> bw) >= 0.4, lower limits on the t quark range from 790 to 940 gev. limits are also set on pair production of singlet vector-like b quarks, which can be excluded up to a mass of 730 gev. the techniques showcased here for understanding highly-boosted final states are important as the sensitivity to new particles is extended to higher masses. |
| WOS关键词 | HADRON COLLIDERS ; CROSS-SECTION ; PP COLLISIONS ; PLUS PLUS ; BOSON ; ENERGIES ; FERMION ; MODELS ; LHC |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Particles & Fields |
| 语种 | 英语 |
| 出版者 | SPRINGER |
| WOS记录号 | WOS:000415660000001 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2178299 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Sirunyan, A. M. |
| 作者单位 | 1.Yerevan Phys Inst, Yerevan, Armenia 2.Inst Hochenergiephys, Vienna, Austria 3.Inst Nucl Problems, Minsk, Byelarus 4.Univ Antwerp, Antwerp, Belgium 5.Vrije Univ Brussel, Brussels, Belgium 6.Univ Libre Bruxelles, Brussels, Belgium 7.Univ Ghent, Ghent, Belgium 8.Catholic Univ Louvain, Louvain La Neuve, Belgium 9.Univ Mons, Mons, Belgium 10.Ctr Brasileiro Pesquisas Fis, Rio De Janeiro, Brazil |
| 推荐引用方式 GB/T 7714 | Sirunyan, A. M.,Tumasyan, A.,Adam, W.,et al. Search for pair production of vector-like t and b quarks in single-lepton final states using boosted jet substructure in proton-proton collisions at root s=13 tev[J]. Journal of high energy physics,2017(11):48. |
| APA | Sirunyan, A. M..,Tumasyan, A..,Adam, W..,Ambrogi, F..,Asilar, E..,...&Butler, P. H..(2017).Search for pair production of vector-like t and b quarks in single-lepton final states using boosted jet substructure in proton-proton collisions at root s=13 tev.Journal of high energy physics(11),48. |
| MLA | Sirunyan, A. M.,et al."Search for pair production of vector-like t and b quarks in single-lepton final states using boosted jet substructure in proton-proton collisions at root s=13 tev".Journal of high energy physics .11(2017):48. |
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