| Search for natural supersymmetry in events with top quark pairs and photons in pp collisions at root s=8 tev | |
| 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
 |
| 2018-03-27 | |
| 期号 | 3页码:38 |
| 关键词 | Hadron-hadron scattering (experiments) Supersymmetry |
| ISSN号 | 1029-8479 |
| DOI | 10.1007/jhep03(2018)167 |
| 英文摘要 | Results are presented from a search for natural gauge-mediated supersymmetry (susy) in a scenario in which the top squark is the lightest squark, the next-to-lightest susy particle is a bino-like neutralino, and the lightest susy particle is the gravitino. the strong production of top squark pairs can produce events with pairs of top quarks and neutralinos, with each bino-like neutralino decaying to a photon and a gravitino. the search is performed using a sample of pp collision data accumulated by the cms experiment at root s = 8 tev, corresponding to an integrated luminosity of 19.7 fb(-1). the final state consists of a lepton (electron or muon), jets, and one or two photons. the imbalance in transverse momentum in the events is compared with the expected spectrum from standard model processes. no excess event yield is observed beyond the expected background, and the result is interpreted in the context of a general model of gauge-mediated susy breaking that leads to exclusion of top squark masses below 650-730 gev. |
| WOS关键词 | FORTRAN CODE ; EXTENSION ; HIGGS ; MODEL ; NEUTRINO ; BREAKING ; DECAY ; MSSM ; MASS |
| 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:000430566400002 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2177611 |
| 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 natural supersymmetry in events with top quark pairs and photons in pp collisions at root s=8 tev[J]. Journal of high energy physics,2018(3):38. |
| APA | Sirunyan, A. M..,Tumasyan, A..,Adam, W..,Asilar, E..,Bergauer, T..,...&Ahmad, M..(2018).Search for natural supersymmetry in events with top quark pairs and photons in pp collisions at root s=8 tev.Journal of high energy physics(3),38. |
| MLA | Sirunyan, A. M.,et al."Search for natural supersymmetry in events with top quark pairs and photons in pp collisions at root s=8 tev".Journal of high energy physics .3(2018):38. |
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