Search for w ' -> tb -> qqbb decays in pp collisions at root s=8 tev with the atlas detector
文献类型：期刊论文
| 作者 | Aad, G.120,121; Abbott, B.153; Abdallah, J.217; Khalek, S. Abdel157,158; Abdinov, O.; Aben, R.146,147; Abi, B.154; Abolins, M.; AbouZeid, O. S.225; Abramowicz, H.219 |
| 刊名 | European physical journal c
 |
| 出版日期 | 2015-04-24 |
| 卷号 | 75期号:4页码:23 |
| ISSN号 | 1434-6044 |
| DOI | 10.1140/epjc/s10052-015-3372-2 |
| 英文摘要 | A search for a massive w' gauge boson decaying to a top quark and a bottom quark is performed with the atlas detector in pp collisions at the lhc. the datasetwas taken at a centre-of-mass energy of root s = 8 tev and corresponds to 20.3 fb(-1) of integrated luminosity. this analysis is done in the hadronic decay mode of the top quark, where novel jet substructure techniques are used to identify jets from high-momentum top quarks. this allows for a search for high-mass w' bosons in the range 1.5-3.0 tev. b-tagging is used to identify jets originating from b-quarks. the data are consistent with standard model background-only expectations, and upper limits at 95% confidence level are set on the w' -> tb cross section times branching ratio ranging from 0.16 pb to 0.33 pb for left-handed w' bosons, and ranging from 0.10 pb to 0.21 pb for w' bosons with purely righthanded couplings. upper limits at 95% confidence level are set on the w'-boson coupling to tb as a function of the w' mass using an effective field theory approach, which is independent of details of particular models predicting a w' boson. |
| 语种 | 英语 |
| WOS记录号 | WOS:000355671700005 |
| 出版者 | SPRINGER |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/1639357 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Aad, G. |
| 作者单位 | 1.Univ Adelaide, Dept Phys, Adelaide, SA, Australia 2.SUNY Albany, Dept Phys, Albany, NY 12222 USA 3.Univ Alberta, Dept Phys, Edmonton, AB, Canada 4.Ankara Univ, Dept Phys, TR-06100 Ankara, Turkey 5.Gazi Univ, Dept Phys, Ankara, Turkey 6.TOBB Univ Econ & Technol, Div Phys, Ankara, Turkey 7.Turkish Atom Energy Commiss, Ankara, Turkey 8.CNRS, IN2P3, LAPP, Annecy Le Vieux, France 9.Univ Savoie, Annecy Le Vieux, France 10.Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA |
| 推荐引用方式 GB/T 7714 | Aad, G.,Abbott, B.,Abdallah, J.,et al. Search for w ' -> tb -> qqbb decays in pp collisions at root s=8 tev with the atlas detector[J]. European physical journal c,2015,75(4):23. |
| APA | Aad, G..,Abbott, B..,Abdallah, J..,Khalek, S. Abdel.,Abdinov, O..,...&Hamal, P..(2015).Search for w ' -> tb -> qqbb decays in pp collisions at root s=8 tev with the atlas detector.European physical journal c,75(4),23. |
| MLA | Aad, G.,et al."Search for w ' -> tb -> qqbb decays in pp collisions at root s=8 tev with the atlas detector".European physical journal c 75.4(2015):23. |
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