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Measurement of jet substructure observables in t t events from proton-proton collisions at s =13 TeV

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, ?S(mZ)=0.115-0.013+0.015, is extracted from the substructure data at leading-order plus leading-log accuracy.

Otras publicaciones de la misma revista o congreso con autores/as de la Universidad de Cantabria

 Fuente: Phys. Rev. D, Vol. 98, Num. 09, Pag. 092014 (2018)

Editorial: American Physical Society

 Fecha de publicación: 29/11/2018

Nº de páginas: 36

Tipo de publicación: Artículo de Revista

 DOI: 10.1103/PhysRevD.98.092014

ISSN: 1550-7998,1550-2368,2470-0010,2470-0029

Url de la publicación: https://doi.org/10.1103/PhysRevD.98.092014