$\Upsilon$ production in hadronic collisions with ALICE at the LHC

21 May 2014, 10:00
20m
platinum (darmstadtium)

platinum

darmstadtium

Schlossgraben 1 64283 Darmstadt Germany
Contributed Talk Open Heavy Flavour and Quarkonia Heavy flavor

Speaker

Javier Castillo Castellanos (CEA/IRFU,Centre d'etude de Saclay Gif-sur-Yvette (FR))

Description

ALICE is the LHC experiment devoted to the study of heavy-ion collisions. The main purpose of ALICE is to investigate the properties of the deconfined state of nuclear matter, the Quark-Gluon Plasma (QGP). Quarkonium measurements play a crucial role in this investigation. In particular, the sequential suppression of the quarkonium states by colour screening has long been suggested as a signature and thermometer of the QGP. The first results on quarkonium suppression in Pb-Pb collisions at the LHC seem to indicate that for charmonia both regeneration and colour screening mechanisms play a role while for bottomonia the regeneration mechanism should be small. Initial state effects can play a role in bottomonium production in Pb-Pb collisions and thus should be studied using proton-nucleus collisions, where no deconfined state is expected to be created. $\Upsilon$ production can be measured in ALICE in the dimuon decay channel using the forward muon spectrometer. We will present the latest results on $\Upsilon$ production in pp, p-Pb and Pb-Pb collisions at LHC energies measured by the ALICE experiment at forward-rapidity.
On behalf of collaboration: ALICE

Primary author

Javier Castillo Castellanos (CEA/IRFU,Centre d'etude de Saclay Gif-sur-Yvette (FR))

Presentation Materials