Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/6228
Title: Measurement of spin correlations in tt production using the matrix element method in the muon+jets final state in pp collisions at s=8 TeV
Authors: CMS Collaboration
Karapınar, Güler
Keywords: Large Hadron Collider (LHC)
Compact Muon Solenoid
Matrix element method
Issue Date: Jul-2016
Publisher: Elsevier Ltd.
Source: Khachatryan, V., Sirunyan, A.M., Tumasyan, A., Adam, W., Asilar, E., Bergauer, T.,...CMS Collaboration (2016). Measurement of spin correlations in tt production using the matrix element method in the muon+jets final state in pp collisions at √s=8 TeV. Physics Letters, Section B, 758, 321-346. doi:10.1016/j.physletb.2016.05.005
Abstract: The consistency of the spin correlation strength in top quark pair production with the standard model (SM) prediction is tested in the muon+jets final state. The events are selected from pp collisions, collected by the CMS detector, at a centre-of-mass energy of 8 TeV, corresponding to an integrated luminosity of 19.7 fb-1. The data are compared with the expectation for the spin correlation predicted by the SM and with the expectation of no correlation. Using a template fit method, the fraction of events that show SM spin correlations is measured to be 0.72±0.08(stat)+0.15 -0.13(syst), representing the most precise measurement of this quantity in the muon+jets final state to date.
URI: http://doi.org/10.1016/j.physletb.2016.05.005
http://hdl.handle.net/11147/6228
ISSN: 0370-2693
Appears in Collections:Mathematics / Matematik
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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