Search for low mass vector resonances decaying into quark-antiquark pairs in proton-proton collisions at root s=13 TeV | |
CMS Collaboration | |
刊名 | JOURNAL OF HIGH ENERGY PHYSICS |
2018 | |
期号 | 1页码:97 |
关键词 | Jet substructure Hadron-Hadron scattering (experiments) Dark matter Jets |
ISSN号 | 1029-8479 |
DOI | 10.1007/JHEP01(2018)097 |
文献子类 | Article |
英文摘要 | A search for narrow vector resonances decaying into quark-antiquark pairs is presented. The analysis is based on data collected in proton-proton collisions at root s = 13 TeV with the CMS detector at the LHC, corresponding to an integrated luminosity of 35.9 fb(-1). The hypothetical resonance is produced with sufficiently high transverse momentum that its decay products are merged into a single jet with two-prong substructure. A signal would be identified as a peak over a smoothly falling background in the distribution of the invariant mass of the jet, using novel jet substructure techniques. No evidence for such a resonance is observed within the mass range of 50-300 GeV. Upper limits at 95% confidence level are set on the production cross section, and presented in a mass-coupling parameter space. The limits further constrain simplified models of dark matter production involving a mediator interacting between quarks and dark matter particles through a vector or axial-vector current. In the framework of these models, the results are the most sensitive to date, extending for the first time the search region to masses below 100 GeV. |
WOS关键词 | DARK-MATTER ; P(P)OVER-BAR COLLISIONS ; PARTICLES ; COLLIDER ; COMPUTATION ; DIJETS ; BOSONS |
WOS研究方向 | Physics |
语种 | 英语 |
WOS记录号 | WOS:000423442300001 |
内容类型 | 期刊论文 |
源URL | [http://ir.ihep.ac.cn/handle/311005/285593] |
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 low mass vector resonances decaying into quark-antiquark pairs in proton-proton collisions at root s=13 TeV[J]. JOURNAL OF HIGH ENERGY PHYSICS,2018(1):97. |
APA | CMS Collaboration.(2018).Search for low mass vector resonances decaying into quark-antiquark pairs in proton-proton collisions at root s=13 TeV.JOURNAL OF HIGH ENERGY PHYSICS(1),97. |
MLA | CMS Collaboration."Search for low mass vector resonances decaying into quark-antiquark pairs in proton-proton collisions at root s=13 TeV".JOURNAL OF HIGH ENERGY PHYSICS .1(2018):97. |
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