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Multidimensional partial wave analysis of SIDIS dihadron beam spin asymmetries at CLAS12
by C. Dilks
This Submission thread is now published as
|As Contributors:||Christopher Dilks|
|Arxiv Link:||https://arxiv.org/abs/2107.12965v1 (pdf)|
|Date submitted:||2021-07-28 16:35|
|Submitted by:||Dilks, Christopher|
|Submitted to:||SciPost Physics Proceedings|
Dihadron beam spin asymmetries provide a wide range of insights into nucleon structure and hadronization. Recent measurements at CLAS12 provide the first empirical evidence of nonzero $G_1^\perp$, the parton helicity-dependent dihadron fragmentation function (DiFF) encoding spin-momentum correlations in hadronization. These measurements also allow for a point-by-point extraction of the subleading-twist PDF $e(x)$ in a collinear framework. We observe different behavior of the asymmetries in different invariant mass regions, motivating a fully multidimensional study. The DiFFs also expand in terms of partial waves, each corresponding to the interference of dihadrons of particular polarizations. Altogether a fully multidimensional partial wave analysis is needed, and this presentation will summarize the efforts and results obtained thus far.
Published as SciPost Phys. Proc. 8, 152 (2022)
Submission & Refereeing History
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Reports on this Submission
Anonymous Report 1 on 2022-2-24 (Invited Report)
Results are very nicely summarized in the report. I recommend for publication as it is.