Erdogan Akyazi, Gokhan Unel, Metin Yilmaz
The Matrix Element Method has been used originally to reduce statistical uncertainty of the top quark mass measurement in both D{\O} and CDF experiments at Tevatron with great success. After the method became more popular, it has also been applied to other analysis such as electroweak single top quark production, estimation of the longitudinal W boson helicity fraction in top quark decays and searches for the Higgs boson. It can also be applied to any mass analysis which includes exclusive decay channels at hadron colliders for BSM researches. In this work, mass analysis results for fourth family up-type quark with both Classic Cut-Based and Matrix Element Methods are compared. We show that even with very small number of events, Matrix Element Method gives better estimations for the mass value and its error, especially for event samples in which ratio of Signal and Background events is greater than 0.2.
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http://arxiv.org/abs/1206.7028
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