Speaker
Description
sPHENIX is a next-generation experiment at RHIC for jet and heavy-flavor physics which was fully commissioned during 2023 and 2024. Using its novel streaming-readout-capable, precision tracking system, sPHENIX collected 100 billion unbiased p+p collisions, and a further sample of minimum-bias Au-Au collisions, in Run-24. A key measurement of the sPHENIX heavy flavor physics program is the comparison of $\Lambda_c$ to $D^0$ differential yields in both Au+Au and p+p collisions, which probes questions related to the hadronization of heavy-flavor baryons compared to mesons in the Quark-Gluon Plasma medium and in vacuum. At RHIC energies, there is no previous measurement of the $\Lambda_c$ / $D^0$ baseline in p+p collisions, modern Monte Carlo event generators give widely different predictions, and the ratio in Au+Au is only poorly known. This talk presents a measurement from sPHENIX of the $\Lambda_c$/ $D^0$ ratio in p+p collisions and the status of the measurement in Au+Au collisions.
| Category | Experiment |
|---|---|
| Collaboration (if applicable) | sPHENIX Collaboration |
