Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/7243
Title: Constraints on the double-parton scattering cross section from same-sign W boson pair production in proton-proton collisions at ?s=8 TeV
Authors: CMS Collaboration
Karapınar, Güler
Keywords: WW production
Multiple-parton interactions
Large Hadron Collider (LHC)
Issue Date: Feb-2018
Publisher: Springer Verlag
Source: Sirunyan, A.M., Tumasyan, A., Adam, W., Ambrogi, F., Asilar, E., Bergauer, T., Brandstetter, J. ...CMS Collaboration (2018). Constraints on the double-parton scattering cross section from same-sign W boson pair production in proton-proton collisions at √s=8 TeV. Journal of High Energy Physics, 2018(2). doi:10.1007/JHEP02(2018)032
Abstract: A first search for same-sign WW production via double-parton scattering is performed based on proton-proton collision data at a center-of-mass energy of 8 TeV using dimuon and electron-muon final states. The search is based on the analysis of data corresponding to an integrated luminosity of 19.7 fb−1. No significant excess of events is observed above the expected single-parton scattering yields. A 95% confidence level upper limit of 0.32 pb is set on the inclusive cross section for same-sign WW production via the double-parton scattering process. This upper limit is used to place a 95% confidence level lower limit of 12.2 mb on the effective double-parton cross section parameter, closely related to the transverse distribution of partons in the proton. This limit on the effective cross section is consistent with previous measurements as well as with Monte Carlo event generator predictions.
URI: https://doi.org/10.1007/JHEP02(2018)032
https://hdl.handle.net/11147/7243
ISSN: 1126-6708
1029-8479
Appears in Collections:Mathematics / Matematik
Rectorate / Rektörlük
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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