9–15 Jun 2019
Bari, Italy
Europe/Zurich timezone

Quarkonium measurements at forward rapidity with ALICE at the LHC

13 Jun 2019, 15:20
20m
Sala Europa (Villa Romanazzi Carducci)

Sala Europa

Villa Romanazzi Carducci

Contributed talk Heavy Flavour

Speaker

Wadut Shaikh (Saha Institute of Nuclear Physics (IN))

Description

Heavy quarks are produced at the first instant of a nucleus­-nucleus collision and therefore are an important tool to study the subsequent high energy­-density medium formed in ultra-­relativistic heavy­-ion collisions. A series of experimental efforts for understanding the properties of the Quark­-Gluon Plasma (QGP), a medium consisting of a deconfined state of quarks and gluons, are based on measuring the bound states of heavy quark­-antiquark pairs known as quarkonia. However, the medium modification of heavy­-flavour hadron production includes also the contribution of cold nuclear matter effects such as shadowing or nuclear break­up in addition to the QGP effects. Proton­-nucleus collisions, where no QGP is expected, are used to measure cold nuclear matter effects on quarkonium production. Finally, quarkonium measurements in proton­-proton collisions are used as reference for both heavy­-ion and proton­-ion collisions. ALICE measurements of quarkonia at forward rapidity for various energies and colliding systems (pp, p­Pb, Pb­-Pb and Xe­-Xe) during the LHC Run­ 1 and Run­ 2 periods will be discussed. Recent ALICE results of quarkonium nuclear modification factor, elliptic flow and polarization using the 2018 Pb­-Pb data sample will be specially highlighted. A comparison of the results among the LHC experiments and theoretical models will be also presented.

Track Heavy Flavour
Collaboration name ALICE

Primary author

Wadut Shaikh (Saha Institute of Nuclear Physics (IN))

Presentation materials