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Experimental Discrimination between Charge<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mn>2</mml:mn><mml:mi>e</mml:mi><mml:mo>/</mml:mo><mml:mn>3</mml:mn></mml:math>Top Quark and Charge<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mn>4</mml:mn><mml:mi>e</mml:mi><mml:mo>/</mml:mo><mml:mn>3</mml:mn></mml:math>Exotic Quark Production Scenarios
We present the first experimental discrimination between the 2e/3 and 4e/3 top quark electric charge scenarios, using top quark pairs (ttĀÆ) produced in ppĀÆ collisions at s=1.96 TeV by the Fermilab Tevatron Collider. We use 370 pbā1 of data collected by the D0 experiment and select events with at least ā¦