9th International Workshop on Multiple Partonic Interactions at the LHC

New results on multiplicity and event shape dependence of particle production in pp collisions

12 Dec 2017, 18:00

15m

Conference Hall (Hotel Peterhoff, Shimla, India)

WG5: High Multiplicities

Speaker

Mr Sushanta Tripathy (Indian Institute of Technology Indore (IN))

Description

Event shape observables are important tools to get an insight into the physics behind collective phenomena in high multiplicity pp collisions at LHC energies. They can be used to disentangle the contributions from hard and soft processes to particle production. We report measurements with the ALICE detector at the LHC of the production of inclusive and identified charged particles as a function of charged particle multiplicity and transverse spherocity in pp collisions at $\sqrt{s}=13\text{TeV}$. The results include the transverse momentum ($p_{\mathrm{T}}$) distributions of pions, kaons and protons as well as the $⟨p_{\mathrm{T}}⟩$ and particle yield ratios. The results are compared to predictions from QCD inspired event generators such as EPOS-LHC, PYTHIA 6 and PYTHIA 8.

Presentation materials

Event_shape_Spherocity_MPI_Sushanta.pdf