Speaker
Zvi Citron
(Ben-Gurion University of the Negev (IL))
Description
We will present the final measurement studying the relationship between the production of hard and soft particles through the correlation of Upsilon meson states (including $\Upsilon$(1S), $\Upsilon$(2S), and $\Upsilon$(3S)) with the inclusive-charged particle yields. The analysis is performed using the full-luminosity ATLAS Run-2 13 TeV $pp$ collision data. A description of the technical challenges and solutions associated with a heavy-ion style analysis in high-pileup $pp$ data will be shown. Per-event charged particle multiplicity is found to be smaller in association with excited $\Upsilon$ states compared to that with a ground state at low $\Upsilon$ transverse momentum. The physics implications will be discussed.
| Category | Experiment |
|---|---|
| Collaboration (if applicable) | ATLAS Collaboration |
Primary author
Zvi Citron
(Ben-Gurion University of the Negev (IL))
