Understand
Heavy quarks provide a new dimension to QCD, allowing tests of fundamental theory, the nature of color confinement, and the production of new exotic multiquark states.
- I also discuss novel explanations for several apparently anomalous experimental results, such as the large $t \bar t$ forward-backward asymmetry observed in $p \bar p$ colisions at the Tevatron, the large rates for $\gamma$ or $Z$ plus high-$p_T$ charm jets observed at the Tevatron, the strong nuclear absorption of the $J/\psi$ observed in $pA$ collisions at the LHC, as well as fixed target experiments at high $x_F$.
- Precision measurements of the heavy quark distribution in hadrons at high $x$ are needed since intrinsic heavy quarks can play an important role in high $x$ phenomenology as well as predicting a new mechanism for high-$x_F$ Higgs production.
- The role of multi-parton interactions, such as di-gluon initiated subprocesses for forward quarkonium hadroproduction, is discussed.