University of Minnesota
School of Physics & Astronomy

Physics and Astronomy Calendar

Tuesday, September 23rd 2014
Speaker: Chunhui Chen, Iowa State
Subject: Production of high transverse momentum vector bosons reconstructed as single jets at ATLAS and its application to search for new particle at LHC

Highly boosted hadronically decaying particles have been widely used as a unique signature to search for new particle at LHC. In this talk, we present a measurement of the cross-section for high transverse momentum W and Z bosons produced in pp collisions and decaying to all-hadronic final states by the ATLAS experiment. The measurement is performed by reconstructing boosted W or Z bosons in single jets. The reconstructed jet mass is used to identify the W and Z bosons, and a jet substructure method based on energy cluster information in the jet center-of-mass frame is used to suppress the large multi-jet background. In this talk, we will also discuss potential applications of the jet substructure in the jet rest frame in searches for new particle at LHC.

Faculty Host: Yuichi Kubota

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