Student seminars

#StudentSeminar: The top-quark mass measurement using tt+1jet events in the dileptonic final state with the full Run 2 data set at √s = 13 TeV with the ATLAS experiment.

by Luis Monsonis Romero (CSIC)

Europe/Madrid
1001-Primera-1-1-1 - Paterna. Seminario (Universe)

1001-Primera-1-1-1 - Paterna. Seminario

Universe

60
Description

We present a measurement of the top quark pole mass, based on a method developed at IFIC where the mass is determined from the normalized differential cross section for associated production of a top quark pair with an energetic jet. The new result is based on the di-lepton channel, using 140/fb of pp collision data at sqrt(s) = 13 TeV, collected by the ATLAS experiment in run 2 of the Large Hadron Collider. The top quark pole mass is extracted by comparing the measured differential cross section to fixed-order predictions for the pp -> ttbar + jet process and the 2->7 process that includes top quark decay and non-resonant contributions.
 

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