Evidence for WW production from double-parton interactions in proton-proton collisions at root s=13 TeV
- Title
- Evidence for WW production from double-parton interactions in proton-proton collisions at root s=13 TeV
- Author
- 김태정
- Keywords
- CMS; Physics; WW production
- Issue Date
- 2020-01
- Publisher
- SPRINGER
- Citation
- EUROPEAN PHYSICAL JOURNAL C, v. 80, no. 1, article no. 41
- Abstract
- A search forWWproduction from double-parton scattering processes using same-charge electron-muon and dimuon events is reported, based on proton-proton collision data collected at a center-of-mass energy of 13 TeV. The analyzed data set corresponds to an integrated luminosity of 77.4 fb-1, collected using the CMS detector at the LHC in 2016 and 2017. Multivariate classifiers are used to discriminate between the signal and the dominant background processes. A maximum likelihood fit is performed to extract the signal cross section. This leads to the first evidence for WW production via double-parton scattering, with a significance of 3.9 standard deviations. The measured inclusive cross section is 1.41 +/- 0.28 (stat) +/- 0.28 (syst) pb.
- URI
- https://link.springer.com/article/10.1140/epjc/s10052-019-7541-6https://repository.hanyang.ac.kr/handle/20.500.11754/160592
- ISSN
- 1434-6044; 1434-6052
- DOI
- 10.1140/epjc/s10052-019-7541-6
- Appears in Collections:
- COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > PHYSICS(물리학과) > Articles
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