A search for an excited bottom quark decaying to a top quark and W boson in pp collisions at $\sqrt{s}$ = 13 TeV

A search is performed for the production of an excited b quark, b*, decaying to a top quark and a W boson in all-hadronic final states. The data analyzed was recorded with the CMS detector at the LHC in proton-proton collisions at $\sqrt{s}$ = 13 TeV. Since this search covers b* masses in excess of 1 TeV, the hadronic decay products are expected to have high momentum and will thus merge producing a single hadronic jet for each the top and W. This search uses jet substructure algorithms to distinguish the top quark and W boson jets from standard model QCD background. The remaining QCD background is estimated using a data driven technique that interpolates background behavior from events with an enhanced QCD multijet component and small signal contamination.