Fragmentation of J/$\psi$-jets in PbPb collisions with the CMS experiment

Jun 4, 2020, 1:50 PM
20m
https://cern.zoom.us/j/98296793721

https://cern.zoom.us/j/98296793721

Oral Presentation Heavy Flavor and Quarkonia Parallel

Speaker

Batoul Diab (Centre National de la Recherche Scientifique (FR))

Description

J/$\psi$ mesons have been found to be produced with more jet activity than predicted by models in pp collisions at the LHC. J/$\psi$ production has long been known to be modified in nuclear collisions, via Debye screening, as well as by other effects. Indirect evidence, in particular, the non-vanishing $v_{2}$ of J/$\psi$ at large transverse momentum, however, suggests that jet quenching may also play an important role in J/$\psi$ suppression. We present the first measurement of reconstructed J/$\psi$-jets in heavy-ion collisions. We measure the jet fragmentation function of jets containing a J/$\psi$ meson, to study the dependence of quenching effects on the degree of associated hadro-production inside the jet.

Collaboration (if applicable) CMS
Track Heavy Flavor and Quarkonia
Contribution type Contributed Talk

Primary author

Serguei Petrushanko (M.V. Lomonosov Moscow State University (RU))

Presentation materials