Speaker
Description
Asymmetric p+A collisions serve as a baseline for the understanding of the nucleus-nucleus collisions. Traditionally, they have been employed to observe the differences between the elementary and heavy-ion collision experiments. The heavy flavor production in p+A collision is well explained by cold nuclear matter effects in earlier experiments such as SPS and RHIC. The recent observation of heavy quarkonium production in p+Pb collision at CERN LHC indicates the possible existence of Quark-Gluon Plasma (QGP) in such small system. In this work, we performed pNRQCD calculation to calculate $\psi(2S)$ enhancement and also incorporated other hot nuclear matter effects to explain the yields of different charmonium states in p+Pb collisions at LHC energy,$\sqrt{s_{NN}}\; = \;5.02\; TeV$. We proposed here that the relative enhancement of $\psi(2S)$ vis a vis $J/\psi$, especially at high transverse momentum ($p_{T}$), is a possible clean probe for indicating QGP formation in such a small systems at LHC energies. The $\psi(2S)$ suppression effects observed at ALICE, is also qualitatively explained in the present work.
| Content type | Theory |
|---|---|
| Collaboration | N/A |
| Centralised submission by Collaboration | Presenter name already specified |
