Search for dark matter produced in association with a Higgs boson decaying to gamma gamma or tau(+)tau(-) 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 | 9页码:46 |
| 关键词 | Dark matter Hadron-Hadron scattering (experiments) |
| ISSN号 | 1029-8479 |
| DOI | 10.1007/JHEP09(2018)046 |
| 文献子类 | Article |
| 英文摘要 | A search for dark matter particles is performed by looking for events with large transverse momentum imbalance and a recoiling Higgs boson decaying to either a pair of photons or a pair of tau leptons. The search is based on proton-proton collision data at a center-of-mass energy of 13 TeV collected at the CERN LHC in 2016 and corresponding to an integrated luminosity of 35.9 fb(-1). No significant excess over the expected standard model background is observed. Upper limits at 95% confidence level are presented for the product of the production cross section and branching fraction in the context of two benchmark simplified models. For the Z'-two-Higgs-doublet model (where Z' is a new massive boson mediator) with an intermediate heavy pseudoscalar particle of mass m(A) = 300 GeV and m(DM) = 100 GeV, the Z' masses from 550 GeV to 1265 GeV are excluded. For a baryonic Z' model, with m(DM) = 1 GeV, Z' masses up to 615 GeV are excluded. Results are also presented for the spin-independent cross section for the dark matter-nucleon interaction as a function of the mass of the dark matter particle. This is the first search for dark matter particles produced in association with a Higgs boson decaying to two tau leptons. |
| WOS关键词 | ATLAS DETECTOR ; COLLISIONS ; LHC ; CONSTRAINTS ; PARTICLE |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000444676300003 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/286328]  |
| 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 in association with a Higgs boson decaying to gamma gamma or tau(+)tau(-) at root s=13 TeV[J]. JOURNAL OF HIGH ENERGY PHYSICS,2018(9):46. |
| APA | CMS Collaboration.(2018).Search for dark matter produced in association with a Higgs boson decaying to gamma gamma or tau(+)tau(-) at root s=13 TeV.JOURNAL OF HIGH ENERGY PHYSICS(9),46. |
| MLA | CMS Collaboration."Search for dark matter produced in association with a Higgs boson decaying to gamma gamma or tau(+)tau(-) at root s=13 TeV".JOURNAL OF HIGH ENERGY PHYSICS .9(2018):46. |
入库方式： OAI收割
来源：高能物理研究所
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