2015/09/22 by W. K. Brooks
Physics and Astronomy · #ATLAS experiment #Atlas (anatomy) #Heavy ion #High-Energy Particle Collisions Research #Ion #Large Hadron Collider #Nuclear matter #Nuclear physics #Nucleon #Particle physics #Particle physics theoretical and experimental studies #Parton #Physics #Production (economics) #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quarkonium #Rapidity #hep-ex #nucl-ex
paper · pdf · doi:10.1016/j.nuclphysbps.2016.05.031
published as Nucl. Part. Phys. Proc. 276-278 (2016) 149-152 · Proceedings contribution for the HARD PROBES 2015 Conference at McGill University in Montreal, June 29 - July 3, 2015. Four pages. To be published in Nuclear Physics B Proceedings Supplement
arxiv created 2015/09/22 · openalex publication_date 2016/06/08 · arxiv updated 2016/09/29 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The production rates of heavy quarkonia in ion-ion collisions provide sensitive probes in the studies of the hot and dense matter formed in these collisions at high energies. However, a reference for understanding the behavior in the hot medium is necessary; p-A collisions open the possibility to study heavy quarkonia states in a smaller system of much lower average temperature. This is an important step in forming a baseline for understanding A-A collisions, as well as an investigation into the nature of modifications of the parton distributions in the nucleus. Using data collected at the LHC in 2013, we show results on the prompt J/Ψ and Ψ(2S) nuclear modification factors and the double ratio, Ψ(2S) divided by J/Ψ in p-Pb divided by the same in p-p, in p-Pb collisions at 5.02 TeV. The charmonia states were reconstructed via the dimuon decay channel and the yield is analyzed differentially in bins of transverse momentum, rapidity, and event activity.