Quark Matter 2015 - XXV International Conference on Ultrarelativistic Nucleus-Nucleus Collisions

Session

Quarkonia II

29-000

29 Sept 2015, 09:00

Kobe, Fashion Mart, Japan

Conveners

Quarkonia II

• Min Jung Kweon (Inha University (KR))

368. PHENIX measurement of the collision system and multiplicity dependence of heavy quarkonia production

Anthony Frawley (Florda State University)

29/09/2015, 09:00

Quarkonia

Contributed talk

The system size and multiplicity dependence of heavy quarkonia production in heavy ion collisions can be used to disentangle the effects of hot and cold nuclear matter on quarkonia production. In particular, color screening and recombination, which modify the yields of charmonia in the quark gluon plasma, can be studied in large systems. We present PHENIX results on J/$\psi$ production...

499. Charmonium production in Pb-Pb collisions with ALICE at the LHC

Hugo Denis Antonio Pereira Da Costa (CEA/IRFU,Centre d'etude de Saclay Gif-sur-Yvette (FR))

29/09/2015, 09:20

Quarkonia

Contributed talk

Charmonia (for instance J/ψ and ψ(2S)) are mesons formed of a charm and anti-charm quark pair. In high-energy hadronic collisions such as those delivered by the LHC between 2010 and 2013, charmonium production results from the hard scattering of two gluons, which occurs very early. In heavy ion collisions, charmonia can thus probe all states of the nuclear matter formed afterward and...

488. Upsilon production measurements in pp, p-Pb and Pb-Pb collisions with ALICE

Indranil Das (Saha Institute of Nuclear Physics (IN))

29/09/2015, 09:40

Quarkonia

Contributed talk

Quarkonium, i.e. bound states of heavy quark and antiquarks ($c\bar{c}$ or $b\bar{b}$), are important observables to study the properties of nuclear matter at extreme energy-densities, where Lattice QCD calculations predict a phase transition from hadronic matter to the Quark-Gluon Plasma (QGP). In high energy heavy-ion collisions, the QGP can be studied using the suppression of...

282. In-medium quarkonium properties from a lattice QCD based effective field theory

Alexander Rothkopf (Heidelberg University)

29/09/2015, 10:00

Quarkonia

Contributed talk

In order to understand the experimental data on quarkonium production in heavy ion collisions at RHIC and LHC it is necessary (though not sufficient) to pinpoint the properties of heavy quarkonium in the deconfined QGP medium, including their dissolution. Studying quarkonium spectral properties at non-zero temperature, directly in lattice QCD, have proven to be difficult and detailed...