Sirunyan, A.M. and Choudhury, S and Komaragiri, JR and Tiwari, PC and Tumasyan, A and Adam, W and Ambrogi, F and Bergauer, T (2020) Evidence for WW production from double-parton interactions in proton–proton collisions at √s=13TeV. In: European Physical Journal C, 80 (1).
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Abstract
A search for WW production 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 13TeV. The analyzed data set corresponds to an integrated luminosity of 77.4fb-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. © 2020, CERN for the benefit of the CMS collaboration.
| Item Type: | Journal Article |
|---|---|
| Publication: | European Physical Journal C |
| Publisher: | Springer |
| Additional Information: | The copyright of the article belongs to the Author(s). |
| Keywords: | CMS; Physics; WW production |
| Department/Centre: | Division of Physical & Mathematical Sciences > Centre for High Energy Physics Division of Physical & Mathematical Sciences > Physics |
| Date Deposited: | 12 Dec 2022 06:20 |
| Last Modified: | 12 Dec 2022 06:20 |
| URI: | https://eprints.iisc.ac.in/id/eprint/79116 |
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