Feb 5 – 11, 2017
Hyatt Regency Chicago
America/Chicago timezone

Measurement of charmonia production in heavy-ion collisions with the ATLAS detector

Feb 7, 2017, 3:00 PM
Regency C

Regency C


Jorge Andres Lopez Lopez (Federico Santa Maria Technical University (CL))


The suppression of heavy charmonia states in heavy-ion collisions is a phenomenon understood as a consequence of QGP formation in the hot, dense system formed in heavy ion collisions at the LHC. In addition to hot matter effects in heavy-ion collisions , cold nuclear effects may also affect heavy charmonia production . Therefore, a full assessment requires detailed studies on the effects present in both A-A and p+A collisions. Based on p+Pb data collected in 2013 and pp and Pb+Pb data collected in 2015 at the LHC, the ATLAS experiment has studied prompt and non-prompt J/psi and psi(2S)productions via the di-muon decay final states. The production and excited-to-ground state ratios of heavy charmonia measured in both p+Pb and Pb+Pb collision data with respect to that measured in pp collision data will be presented in intervals of transverse momentum, rapidity and centrality.

Preferred Track Quarkonia
Collaboration ATLAS

Primary author

Jorge Andres Lopez Lopez (Federico Santa Maria Technical University (CL))

Presentation materials