Correlation Between Mean pT and Charged Particle Multiplicity in pp Collisions at √s = 0.9, 2.76 and 7 TeV with ALICE

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Théâtre National (Centre Bonlieu)

Théâtre National

Centre Bonlieu

Board: 31
Poster Jets


Philipp Luettig (CERN)


The study of transverse momentum distributions of charged particles in pp collisions at the LHC provides information about both soft and hard contributions to particle production. Charged particle transverse momentum distributions in pp collisions at 0.9, 2.76 and 7 TeV have been measured at mid-rapidity (|eta|$<$ 0.8) by ALICE. We present the energy dependence of the inclusive average transverse momentum $<$pT$>$ and the correlation between $<$pT$>$ and the charged particle multiplicity. The results are compared to simulations with Monte Carlo event generators. In this poster, details of the extrapolation to pT = 0 as well as the procedure to correct the measured multiplicity to a true multiplicity are presented. Moreover, possible energy-independent scaling properties of the correlation between $<$pT$>$ and multiplicity are discussed.

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