  We report measurements of forward jets and dijets produced in Cu+Au
collisions at $\sqrt{s_{NN}}=200$ GeV at the Relativistic Heavy Ion Collider.
We also report dijet production cross sections in p+p collisions at
$\sqrt{s}=510$ GeV. We use the invariant dijet mass to search for indications
of new particles. The p+p dijet results are compatible with string
fragmentation models tuned to fit LHC data. The Cu+Au jet results far exceed
Feynman scaling limits, and are compatible with models that incorporate string
fusion to increase parton energy, acting as a QCD accelerator. The Cu+Au dijet
results can be mostly explained by double parton scattering due to a parton
flux from multiple p+p interactions with $\sqrt{s}>>\sqrt{s_{NN}}$. Further
indication of the increased parton energy is obtained from evidence of single-
and double-$\Upsilon$(1S) production in the forward direction in Cu+Au
collisions. Finally, we report evidence for the production of a new resonance,
reconstructed from its dijet decay.
