Cargando…

Performance of boosted object and jet substructure techniques in Run 1 and 2 ATLAS data

Hadronic decays of heavy particles with momenta much larger than their mass result in their decay products being reconstructable as a single large-radius jet. The study of the substructure of these jets allows the separation of these boosted decays with respect to more common jets from light-quarks...

Descripción completa

Detalles Bibliográficos
Autor principal: Schramm, Steven
Lenguaje:eng
Publicado: 2016
Materias:
Acceso en línea:https://dx.doi.org/10.22323/1.282.1155
http://cds.cern.ch/record/2229555
Descripción
Sumario:Hadronic decays of heavy particles with momenta much larger than their mass result in their decay products being reconstructable as a single large-radius jet. The study of the substructure of these jets allows the separation of these boosted decays with respect to more common jets from light-quarks and gluons. Several techniques have been developed by the phenomenology and experimental community to identify jets coming from hadronic decays of boosted top quarks, W, Z and Higgs bosons. The performance of several such techniques have been studied in ATLAS using fully-simulated Monte Carlo events, and validated on data using pure samples of top quarks, W bosons from top decays and dijet events. Results of these studies will be presented for Run 1 as well as Run 2 of the LHC.