Abstract
A measurement of jet substructure observables is presented using tt events in the lepton+jets channel from proton-proton collisions at s=13 TeV recorded by the CMS experiment at the LHC, corresponding to an integrated luminosity of 35.9 fb-1. Multiple jet substructure observables are measured for jets identified as bottom, light-quark, and gluon jets, as well as for inclusive jets (no flavor information). The results are unfolded to the particle level and compared to next-to-leading-order predictions from powheg interfaced with the parton shower generators pythia 8 and herwig 7, as well as from sherpa 2 and Dire 2. A value of the strong coupling at the Z boson mass, αS(mZ)=0.115-0.013+0.015, is extracted from the substructure data at leading-order plus leading-log accuracy.
Original language | English |
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Article number | 092014 |
Journal | Physical Review D |
Volume | 98 |
Issue number | 9 |
DOIs | |
Publication status | Published - 2018 Nov 1 |
Bibliographical note
Publisher Copyright:© 2018 CERN, for the CMS Collaboration. Published by the American Physical Society.
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics