Search for high-mass resonances in dilepton final states in proton-proton collisions at root s=13 TeV
文献类型：期刊论文
| 作者 | CMS Collaboration |
| 刊名 | JOURNAL OF HIGH ENERGY PHYSICS
 |
| 出版日期 | 2018 |
| 期号 | 6页码:120 |
| 关键词 | Beyond Standard Model Hadron-Hadron scattering (experiments) Lepton production Particle and resonance production |
| ISSN号 | 1029-8479 |
| DOI | 10.1007/JHEP06(2018)120 |
| 文献子类 | Article |
| 英文摘要 | A search is presented for new high-mass resonances decaying into electron or muon pairs. The search uses proton-proton collision data at a centre-of-mass energy of 13TeV collected by the CMS experiment at the LHC in 2016, corresponding to an integrated luminosity of 36 fb(-1). Observations are in agreement with standard model expectations. Upper limits on the product of a new resonance production cross section and branching fraction to dileptons are calculated in a model-independent manner. This permits the interpretation of the limits in models predicting a narrow dielectron or dimuon resonance. A scan of different intrinsic width hypotheses is performed. Limits are set on the masses of various hypothetical particles. For the Z(SSM)' (Z(psi)') particle, which arises in the sequential standard model (superstring-inspired model), a lower mass limit of 4.50 (3.90) TeV is set at 95% confidence level. The lightest Kaluza-Klein graviton arising in the Randall-Sundrum model of extra dimensions, with coupling parameters k/(M) over bar (Pl) of 0.01, 0.05, and 0.10, is excluded at 95% con fi dence level below 2.10, 3.65, and 4.25TeV, respectively. In a simpli fi ed model of dark matter production via a vector or axial vector mediator, limits at 95% con fi dence level are obtained on the masses of the dark matter particle and its mediator. |
| WOS关键词 | PP COLLISIONS ; NARROW RESONANCES ; LHC ; SPECTRA ; CHANNEL ; MODELS ; MADDM ; BOSON ; ERA |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000437349300001 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/286085]  |
| 专题 | 高能物理研究所_粒子天体物理中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | CMS Collaboration. Search for high-mass resonances in dilepton final states in proton-proton collisions at root s=13 TeV[J]. JOURNAL OF HIGH ENERGY PHYSICS,2018(6):120. |
| APA | CMS Collaboration.(2018).Search for high-mass resonances in dilepton final states in proton-proton collisions at root s=13 TeV.JOURNAL OF HIGH ENERGY PHYSICS(6),120. |
| MLA | CMS Collaboration."Search for high-mass resonances in dilepton final states in proton-proton collisions at root s=13 TeV".JOURNAL OF HIGH ENERGY PHYSICS .6(2018):120. |
入库方式： OAI收割
来源：高能物理研究所
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