First measurement of quarkonium polarization in nuclear collisions at the LHC


Acharya S., Adamová D., Adler A., Adolfsson J., Aggarwal M., Aglieri Rinella G., ...More

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol.815, 2021 (SCI-Expanded) identifier identifier

Abstract

The polarization of inclusive J/ψ and ϒ(1S) produced in Pb–Pb collisions at sNN=5.02 TeV at the LHC is measured with the ALICE detector. The study is carried out by reconstructing the quarkonium through its decay to muon pairs in the rapidity region 2.5