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Transverse Single-Spin Asymmetries of Midrapidity Direct Photons and Neutral Mesons at PHENIX
by Nicole Lewis
This is not the latest submitted version.
Submission summary
| Authors (as registered SciPost users): | Nicole Lewis |
| Submission information | |
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| Preprint Link: | https://arxiv.org/abs/2107.10079v1 (pdf) |
| Date submitted: | July 22, 2021, 5:24 p.m. |
| Submitted by: | Nicole Lewis |
| Submitted to: | SciPost Physics Proceedings |
| Proceedings issue: | 28th Annual Workshop on Deep-Inelastic Scattering (DIS) and Related Subjects (DIS2021) |
| Ontological classification | |
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| Academic field: | Physics |
| Specialties: |
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| Approach: | Experimental |
Abstract
Results are presented for the transverse single-spin asymmetries of direct photons, neutral pions, and eta mesons for $|\eta|<0.35$ from $p^\uparrow + p$ collisions with $\sqrt{s} = 200$ GeV at PHENIX. As hadrons, $\pi^0$ and $\eta$ mesons are sensitive to both initial- and final-state effects and at midrapidity probe the dynamics of gluons along with a mix of quark flavors. Because direct photon production does not include hadronization, the direct photon TSSA is only sensitive to initial-state effects and at midrapidity provides a clean probe of the gluon dynamics in transversely polarized protons. All three of these results will help constrain the collinear twist-3 trigluon correlation function as well as the gluon Sivers function, improving our knowledge of spin-dependent gluon dynamics in QCD.
Current status:
Reports on this Submission
Report
First, x_F should be defined when it is used. Second, if possible, it would be good to move the inset plots in Figs. 1 and 2 to be stand-alone plots. If it is overly cumbersome to regenerate the figures, the paper can be published as is.
Author: Nicole Lewis on 2022-03-18 [id 2296]
(in reply to Report 1 on 2022-02-28)Apologies for the delay, I just resubmitted these proceedings and x_F is now defined. Unfortunately I am not able to regenerate Figs. 1 and 2 such that the inserts are stand alone plots. Their current format matches what is in the published paper: arXiv:2011.14170. Thank you.