Dijet imbalance in hadronic collisions

Understand

The imbalance of dijets produced in hadronic collisions has been used to extract the average transverse momentum of partons inside the hadrons.

• In this paper we discuss new contributions to the dijet imbalance that could complicate or even hamper this extraction.
• They are due to polarization of initial state partons inside unpolarized hadrons that can arise in the presence of nonzero parton transverse momentum.
• Transversely polarized quarks and linearly polarized gluons produce specific azimuthal dependences of the two jets that in principle are not suppressed.