fanti_2_pubblicazione precedente_Measurement of the top quark pair production cross section in pp collisions at √s = 7 TeV in µ + τ final states with ATLAS

Abstract

We present an update of the results presented in 1, using 3.1 pb1. In this update the analysis underwent only minor modifications due to changes in the trigger. No resonances were found in the updated sample. We improved the limits set on the product of cross section and signal acceptance for excited-quark (q) production as a function of q mass. These exclude at the 95% CL the q mass interval 0.50 <1.53 TeV.