Accessing TMDs through the Cahn Effect
ORAL
Abstract
We investigate the proton's intrinsic transverse-momentum distributions via the Cahn effect within the framework of transverse-momentum–dependent (TMD) factorization. The Cahn effect generates a characteristic azimuthal cosϕ modulation between the leptonic and hadronic planes in semi-inclusive deep inelastic scattering (SIDIS). In this talk, we analyze in detail the TMD parton distribution functions that contribute to this modulation and their nontrivial relations, which are constrained by the so-called equation-of-motion (EOM) relations. Our findings advance the ongoing program of TMD phenomenology and are directly relevant to SIDIS measurements at Jefferson Lab and the COMPASS experiment at CERN.
*This work is supported in part by the DOE Office of Science Nuclear Theory Program under grant No. DE-SC0026320
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Publication: "Transverse-momentum-dependent factorization at next-to-leading power and the Cahn Effect" - To be submitted for publication.
Related to the work - https://doi.org/10.48550/arXiv.2211.13209
Presenters
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Owen Page
- Pennsylvania State University