Study of (w/z)h production and higgs boson couplings using h -> ww* decays with the atlas detector
文献类型：期刊论文
| 作者 | Aad, G.122,123; Abbott, B.155; Abdallah, J.217; Abdinov, O.14; Aben, R.148,149; Abolins, M.128; AbouZeid, O. S.225; Abramowicz, H.219; Abreu, H.218; Abreu, R.45 |
| 刊名 | Journal of high energy physics
 |
| 出版日期 | 2015-08-27 |
| 期号 | 8页码:65 |
| 关键词 | Hadron-hadron scattering Higgs physics |
| ISSN号 | 1029-8479 |
| DOI | 10.1007/jhep08(2015)137 |
| 通讯作者 | Aad, g.() |
| 英文摘要 | A search for higgs boson production in association with a w or z boson, in the h -> ww* decay channel, is performed with a data sample collected with the atlas detector at the lhc in proton-proton collisions at centre-of-mass energies root s = 7 tev and 8tev, corresponding to integrated luminosities of 4.5 fb(-1) and 20.3 fb(-1), respectively. the w h production mode is studied in two-lepton and three-lepton final states, while twolepton and four-lepton final states are used to search for the zh production mode. the observed significance, for the combined wh and zh production, is 2.5 standard deviations while a significance of 0.9 standard deviations is expected in the standard model higgs boson hypothesis. the ratio of the combined w h and z h signal yield to the standard model expectation, mu(vh), is found to be mu(vh) = 3.0(-1.1)(+1.3)(stat.)(-0.7)(+1.0) (sys.) for the higgs boson mass of 125.36 gev. the wh and zh production modes are also combined with the gluon fusion and vector boson fusion production modes studied in the h -> ww* -> l nu l nu decay channel, resulting in an overall observed significance of 6.5 standard deviations and mu f-gg+vbf+vh = 1.16(-0.15)(+0.16)(stat.)(-0.15)(+0.18)(sys.). the results are interpreted in terms of scaling factors of the higgs boson couplings to vector bosons (kappa(v)) and fermions (kappa(f)); the combined results are: vertical bar kappa(v)vertical bar = 1.06(-0.10)(+0.10), vertical bar kappa(f)vertical bar = 0.85(-0.20)(+0.26) |
| WOS关键词 | LHC ; MASS |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Particles & Fields |
| 语种 | 英语 |
| WOS记录号 | WOS:000363532000003 |
| 出版者 | SPRINGER |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2176462 |
| 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.Istanbul Aydin Univ, Istanbul, Turkey 6.TOBB Univ Econ & Technol, Div Phys, Ankara, Turkey 7.CNRS, IN2P3, LAPP, Annecy Le Vieux, France 8.Univ Savoie Mt Blanc, Annecy Le Vieux, France 9.Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA 10.Univ Arizona, Dept Phys, Tucson, AZ 85721 USA |
| 推荐引用方式 GB/T 7714 | Aad, G.,Abbott, B.,Abdallah, J.,et al. Study of (w/z)h production and higgs boson couplings using h -> ww* decays with the atlas detector[J]. Journal of high energy physics,2015(8):65. |
| APA | Aad, G..,Abbott, B..,Abdallah, J..,Abdinov, O..,Aben, R..,...&Hayden, D..(2015).Study of (w/z)h production and higgs boson couplings using h -> ww* decays with the atlas detector.Journal of high energy physics(8),65. |
| MLA | Aad, G.,et al."Study of (w/z)h production and higgs boson couplings using h -> ww* decays with the atlas detector".Journal of high energy physics .8(2015):65. |
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来源：高能物理研究所
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