Year: 2011
Type: article
Abstract: Quarkonia have been studied in different collision systems and energy in order to understand the effects of the hot and dense medium created in heavy-ion collisions. CMS is well suited to measure quarkonia decays to muons given the muon identification and charged particle tracking capability. We report here prompt, non-prompt and ϒ production measured by the CMS experiment in pp collisions at TeV. In addition, the and ϒ production in Pb–Pb at TeV and pp collisions at the same per nucleon energy are measured and compared. Prompt and non-prompt contributions are separated for the first time in heavy-ion collisions, as is the ground from the excited states in the ϒ family. Suppression in Pb–Pb at TeV is quantified for prompt , and ϒ(1 S ), as well as the relative suppression of ϒ(2 S +3 S ) compared to ϒ(1 S ).
Author: Catherine Silvestre
Institution: Laboratoire de Physique Subatomique et de Cosmologie
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Award: CMS PROJECT COORDINATION
OpenAlex ID: W2007179377