Charged-particle multiplicities in proton–proton collisions at √s = 0.9 TeV, 2.76 TeV and 7 TeV, with ALICE at LHC

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Théâtre National (Centre Bonlieu)

Théâtre National

Centre Bonlieu

Board: 47
Poster Global and collective dynamics


Anton Alkin (Bogolyubov Inst. for Theor. Phys. (ITP)-Ukrainian Academy of Sci)


High-statistics measurements were performed at LHC, with the ALICE central barrel detectors, in the central pseudorapidity region (–1 ≤ η < 1) of multiplicity distributions, and pseudorapidity densities of primary charged particles produced in proton–proton collisions, at √s = 0.9 TeV, 2.76 TeV and 7 TeV. Measurements were obtained for two event classes: inelastic events (INEL) and non-single diffractive events (NSD). The data are compared to measurements from other experiments and to simulations with Monte Carlo event generators PYTHIA and PHOJET.

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