sPHENIX cold QCD topical group

["Perepelitsa, Dennis" <dvp AT bnl.gov>]

Hi Greg,

Thanks for the draft.

I guess since this is the APS March/April “Global” meeting, the abstract is likely to just be accepted and we do not need too much careful tweaking.

If I could make one suggestion, it would be to write “analysis” -> “analysis status”. It seems plausible that sPHENIX could converge on a Preliminary pi0/eta A_N on that March timescale, but since we have not even officially formed PPGs yet (a topic for discussion in the PCM tomorrow), it might be prudent to describe it as the status report.

I hope you can also pick a snappy title!

Dennis

On Oct 17, 2024, at 12:55 PM, Mattson, Gregory William <mattson5 AT illinois.edu> wrote:

Hello everyone,

I would like to propose an abstract for a talk at the APS meeting in March 2025, focusing on the pi0 and eta A_N measurement. The abstract submission deadline is next Friday, Oct 25. Please let me know if you have any feedback or suggestions.

Thanks,
Greg 

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The sPHENIX experiment is a new detector at the Relativistic Heavy Ion Collider at Brookhaven National Laboratory. Designed for precision measurements of jet and heavy-flavor observables, sPHENIX provides precision vertexing, tracking, and electromagnetic and hadronic calorimetry in the central pseudorapidity region |eta| < 1.1 with full azimuthal coverage. In addition to measurements of the quark-gluon plasma produced in heavy ion collisions, sPHENIX also enables new and improved measurements in cold QCD. This talk will describe the analysis of transverse single-spin asymmetries in pi0 and eta meson production using transversely polarized p+p collision data taken by sPHENIX in 2024. These asymmetries are sensitive to twist-3 multi-parton correlators, which are linked to the Sivers TMD PDF. Comparisons to existing results from the PHENIX experiment and to theoretical models will be shown.

Dennis V. Perepelitsa
Associate Professor, Physics Department
University of Colorado Boulder