High-multiplicity final states and transverse-momentum dependent parton showering at hadron colliders

Abstract

If large-angle multigluon radiation gives significant contributions to parton showers in the LHC high-energy region, appropriate generalizations of parton branching methods are required for Monte Carlo simulations of exclusive high-multiplicity final states. We discuss the use in this context of transverse-momentum dependent kernels which factorize in the region of high energies. We give examples based on ep and p pbar multi-jet data, and point to possible developments for distributions associated with massive final states at the LHC.

8 pages. Latex. Presented at Photon 2009

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• Forward jets in hadron-hadron collisions
• Introduction to Forward Physics and Cosmic Rays at ISMD 2010
• Soft Gluons and Jets at the LHC
• Precision DIS data and TMD parton distributions