{'fraction_non_alphanumeric': 0.011527377521613832, 'fraction_numerical': 0.004322766570605188, 'mean_word_length': 4.515873015873016, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Top Quark Mass Measurement with the Matrix Element Method in the Lepton + Jets Final State at DØ Run II

We present a measurement of the top quark mass with the Matrix Element method in the lepton+jets final state. As the jet energy scale represents the dominant source of systematic uncertainty, the Matrix Element likelihood is extended by an additional parameter, which is defined as a global scale factor relative to the reference scale. The top quark mass is obtained from a fit which yields the combined statistical and systematic jet energy scale uncertainty. Using a data set of 370 pb of data taken with the DØ experiment at Tevatron Run II, the mass of the top quark is measured to be