Transverse momentum dependence in double parton scattering

Understand

In this review, we describe the status of transverse momentum dependence (TMD) in double parton scattering (DPS).

• The different regions of TMD DPS are discussed, and expressions given for the DPS cross section contributions that make use of as much perturbative information as possible.
• The regions are then combined with each other as well as with single parton scattering to obtain a complete expression for the cross section.
• Particular emphasis is put on the differences and similarities to transverse momentum dependence in single parton scattering.