Search for dark matter produced with an energetic jet or a hadronically decaying W or Z boson 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 | 2017 |
| 期号 | 7页码:14 |
| 关键词 | Jet substructure Dark matter Hadron-Hadron scattering (experiments) Exotics Higgs physics |
| ISSN号 | 1029-8479 |
| DOI | 10.1007/JHEP07(2017)014 |
| 文献子类 | Article |
| 英文摘要 | A search for dark matter particles is performed using events with large missing transverse momentum, at least one energetic jet, and no leptons, in proton-proton collisions at root S = 13TeV collected with the CMS detector at the LHC. The data sample corresponds to an integrated luminosity of 12.9 fb(-1). The search includes events with jets from the hadronic decays of a W or Z boson. The data are found to be in agreement with the predicted background contributions from standard model processes. The results are presented in terms of simpli fi ed models in which dark matter particles are produced through interactions involving a vector, axial-vector, scalar, or pseudoscalar mediator. Vector and axial-vector mediator particles with masses up to 1.95TeV, and scalar and pseudoscalar mediator particles with masses up to 100 and 430 GeV respectively, are excluded at 95% con fi dence level. The results are also interpreted in terms of the invisible decays of the Higgs boson, yielding an observed (expected) 95% con fi dence level upper limit of 0.44 (0.56) on the corresponding branching fraction. The results of this search provide the strongest constraints on the dark matter pair production cross section through vector and axial-vector mediators at a particle collider. When compared to the direct detection experiments, the limits obtained from this search provide stronger constraints for dark matter masses less than 5, 9, and 550 GeV, assuming vector, scalar, and axial-vector mediators, respectively. The search yields stronger constraints for dark matter masses less than 200 GeV, assuming a pseudoscalar mediator, when compared to the indirect detection results from Fermi-LAT. |
| WOS关键词 | LHC ; COMPUTATION ; CANDIDATES |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000405104000002 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/284496]  |
| 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 dark matter produced with an energetic jet or a hadronically decaying W or Z boson at root S=13 TeV[J]. JOURNAL OF HIGH ENERGY PHYSICS,2017(7):14. |
| APA | CMS Collaboration.(2017).Search for dark matter produced with an energetic jet or a hadronically decaying W or Z boson at root S=13 TeV.JOURNAL OF HIGH ENERGY PHYSICS(7),14. |
| MLA | CMS Collaboration."Search for dark matter produced with an energetic jet or a hadronically decaying W or Z boson at root S=13 TeV".JOURNAL OF HIGH ENERGY PHYSICS .7(2017):14. |
入库方式： OAI收割
来源：高能物理研究所
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