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Direct Measurement of the Top Quark Mass
We measure the top quark mass mt using tt¯ pairs produced in the D0 detector by s=1.8TeVpp¯ collisions in a 125pb−1 exposure at the Fermilab Tevatron. We make a two constraint fit to mt in tt¯→bW+b¯W− final states with one W decaying to qq¯ and the other to eν or …