Measurement of jet substructure observables in t¯t events from proton-proton collisions at √s = 13 TeV
![Thumbnail](/xmlui/bitstream/handle/10679/6179/Measurement%20of%20jet%20substructure%20observables%20in%20t%c2%aft%20%20events%20from%20proton-proton%20collisions%20at%20%e2%88%9as%20%3d%2013%20TeV.pdf.jpg?sequence=4&isAllowed=y)
View/ Open
Type :
Article
Publication Status :
Published
Access :
openAccess
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.
Source :
Physical Review D
Date :
2018-11-29
Volume :
98
Issue :
9
Publisher :
American Physical Society
URI
http://hdl.handle.net/10679/6179https://journals.aps.org/prd/abstract/10.1103/PhysRevD.98.092014
Collections
Share this page