Search for electroweak production of charginos in final states with two t leptons in pp collisions at root s=8 tev
文献类型：期刊论文
| 作者 | Khachatryan, V.1; 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 |
| 刊名 | Journal of high energy physics
 |
| 出版日期 | 2017-04-04 |
| 期号 | 4页码:49 |
| 关键词 | Hadron-hadron scattering (experiments) Supersymmetry |
| ISSN号 | 1029-8479 |
| DOI | 10.1007/jhep04(2017)018 |
| 通讯作者 | Khachatryan, v.() |
| 英文摘要 | Results are presented from a search for the electroweak production of supersymmetric particles in pp collisions in final states with two t leptons. the data sample corresponds to an integrated luminosity between 18.1 fb(-1) and 19.6 fb(-1) depending on the final state of t lepton decays, at root s = 8 tev, collected by the cms experiment at the lhc. the observed event yields in the signal regions are consistent with the expected standard model backgrounds. the results are interpreted using simplified models describing the pair production and decays of charginos or t sleptons. for models describing the pair production of the lightest chargino, exclusion regions are obtained in the plane of chargino mass vs. neutralino mass under the following assumptions: the chargino decays into third-generation sleptons, which are taken to be the lightest sleptons, and the sleptons masses lie midway between those of the chargino and the neutralino. chargino masses below 420 gev are excluded at a 95% confidence level in the limit of a massless neutralino, and for neutralino masses up to 100 gev, chargino masses up to 325 gev are excluded at 95% confidence level. constraints are also placed on the cross section for pair production of t sleptons as a function of mass, assuming a massless neutralino. |
| WOS关键词 | HADRON COLLIDERS ; SUPERGAUGE TRANSFORMATIONS ; MEASURING MASSES ; CROSS-SECTION ; ENERGY |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Particles & Fields |
| 语种 | 英语 |
| WOS记录号 | WOS:000398449400010 |
| 出版者 | SPRINGER |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2177218 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Khachatryan, V. |
| 作者单位 | 1.Yerevan Phys Inst, Yerevan, Armenia 2.Inst Hochenergiephys, Vienna, Austria 3.Natl Ctr Particle & High Energy Phys, 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 | Khachatryan, V.,Sirunyan, A. M.,Tumasyan, A.,et al. Search for electroweak production of charginos in final states with two t leptons in pp collisions at root s=8 tev[J]. Journal of high energy physics,2017(4):49. |
| APA | Khachatryan, V..,Sirunyan, A. M..,Tumasyan, A..,Adam, W..,Asilar, E..,...&Oropeza Barrera, C..(2017).Search for electroweak production of charginos in final states with two t leptons in pp collisions at root s=8 tev.Journal of high energy physics(4),49. |
| MLA | Khachatryan, V.,et al."Search for electroweak production of charginos in final states with two t leptons in pp collisions at root s=8 tev".Journal of high energy physics .4(2017):49. |
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