SciPost Submission Page
JAM small-x helicity phenomenology
by Daniel Adamiak
Submission summary
| Authors (as registered SciPost users): | Daniel Adamiak |
| Submission information | |
|---|---|
| Preprint Link: | https://arxiv.org/abs/2108.02070v2 (pdf) |
| Date submitted: | Aug. 10, 2021, 2:06 p.m. |
| Submitted by: | Adamiak, Daniel |
| Submitted to: | SciPost Physics Proceedings |
| Proceedings issue: | 28th Annual Workshop on Deep-Inelastic Scattering (DIS) and Related Subjects (DIS2021) |
| Ontological classification | |
|---|---|
| Academic field: | Physics |
| Specialties: |
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| Approaches: | Theoretical, Phenomenological |
Abstract
We present the first-ever description the world data on the gp,n1 structure function at small Bjorken x using evolution equations in x derived from first principles QCD. This is a Monte-Carlo analysis within the JAM global framework that allows us to fit all existing polarized DIS data below x<0.1 as well as predict future measurements of small x gp,n1 at the EIC. This is a necessary step in determining the quark helicity PDFs and, ultimately, the quark contribution to the proton spin.
Current status:
Awaiting resubmission
Reports on this Submission
Report
The proceeding presents a Monte Carlo-based analysis of the world data on polarized lepton-nucleon DIS at small Bjorken-x within the polarized quark dipole formalism. To our knowledge, this is the first successful description of the double-spin asymmetries in polarized DIS at x < 0.1 using the KPS small-x evolution equations.
The proceeding is nicely-written and the results presented here are worthy of publication.
Minor comments:
∙ on page 4, 2nd paragraph: at teh EIC. → at the EIC.
∙ on page 5, 1st paragraph (just before the Conclusion section): ΔΣ are given in 4. → ΔΣ are given in Fig. 4.
∙ on page 5, in the Conclusion section, 2nd paragraph: JAM smsall-x framework → JAM small-x framework
The proceeding is nicely-written and the results presented here are worthy of publication.
Minor comments:
∙ on page 4, 2nd paragraph: at teh EIC. → at the EIC.
∙ on page 5, 1st paragraph (just before the Conclusion section): ΔΣ are given in 4. → ΔΣ are given in Fig. 4.
∙ on page 5, in the Conclusion section, 2nd paragraph: JAM smsall-x framework → JAM small-x framework