Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2011-02-03
Physics
High Energy Physics
High Energy Physics - Phenomenology
Scientific paper
The forward-backward asymmetry A_{FB}^t in top quark production at the Tevatron has been seen to be anomalously large both by CDF and D0. Parton-level asymmetries as large as 50%, with a large error bar, have been extracted from the data. It is important to measure other quark asymmetries if possible, as these would help clarify the source of any new physics behind A_{FB}^t. In this note it is argued that asymmetries in b\bar b and c\bar c should be accessible to the Tevatron experiments, using the full data sets. A crude study suggests that muon asymmetries in high-p_T dijet events, with suitable use of muon and jet kinematics and (inefficient) heavy flavor tagging, might allow detection of A_{FB}^c and A_{FB}^b ~ 0.3. Were it possible to make heavy flavor tagging at high p_T efficient, or mistags rare, then the sensitivity of the measurement of A_{FB}^b could be significantly better.
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