8–14 Sept 2013
Hotel Louxo - Illa da Toxa - Galicia (Spain)
Europe/Zurich timezone

ALICE Measurements in p-Pb collisions: Multiplicity, Centrality and Implications for Binary Scaling

10 Sept 2013, 17:30
15m
Hotel Louxo - Illa da Toxa - Galicia (Spain)

Hotel Louxo - Illa da Toxa - Galicia (Spain)

Speaker

Dr Alberica Toia (Universita e INFN (IT))

Description

Measurements of particle production in proton-nucleus collisions provide a reference to disentangle final state effects, i.e. signatures of the formation of a deconfined hot medium, from initial state effects, already present in cold nuclear matter. Since many initial state effects are expected to vary as a function of the number of collisions suffered by the incoming projectile, it is crucial to estimate event-by-event the centrality of the collision. In p-Pb collisions, the low particle multiplicities and the large multiplicity fluctuations influence the way collisions are categorized into different centrality classes using a particle multiplicity distribution. We present ALICE measurements of particle production in p-Pb collisions at sqrt(s_NN)=5.02 TeV, including the pseudo-rapidity and transverse momentum dependence, we discuss the event classification in centrality classes and its implications for the measurements of nuclear modification factors.

Author

Dr Alberica Toia (Universita e INFN (IT))

Presentation materials