Calculation of the Z+jet cross section including transverse momenta of initial partons

Understand

We perform calculations of Z+jet cross-section taking into account the transverse momenta of the initial partons.

• Transverse Momentum Dependent (TMD) parton densities obtained with the Parton Branching method are used and higher order corrections are included via TMD parton showers in the initial state.
• The predictions are compared to measurements of forward Z+jet production of the LHCb collaboration at $\sqrt{s}=7$ TeV.
• We show that the results obtained in kT-factorization are in good agreement with results obtained from a NLO calculation matched with traditional parton showers.