Exploring the Phase Space of Jet Splittings at ALICE using Grooming and Recursive Techniques

Hard splittings in the evolution of a hard scattered parton may be modified by the presence of a dense strongly interacting medium. Grooming procedures can be used to isolate such hard components of a jet and allows one to focus on the two subjets resulting from a sufficiently hard partonic splitting. Measurements of the symmetry parameter ( z g ), angular separation ( R g ) and number of splittings ( n SD ) of Soft Drop groomed jets are reported as measured with the ALICE Detector in pp and Pb–Pb collisions at s=7TeV and sNN=2.76TeV , respectively. The use of recursive splittings and their mappings to identify interesting regions of phase space in the zg−Rg plane are also discussed.