Top Mass Measurement using b-jet Energy Spectrum

In order to study the feasibility of measuring the mass of the Top quark using the b-jet energy spectrum, we have made a simulation study of the perfomance of this new technique. We were able to study different bias effects in determining the position of the peak in the energy spectrum. Two approaches have been considered in this scenario, selecting the second jet: Using the highest pT jet or the one ranking highest in the b-jet algorithm classification in events when at least two jets are identified as b jets. Jet energy scale is estimated to be the dominant systematic uncertainty in this new technique.