STI Publications - View Publication Form #15958
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Publication Information
Title | Azimuthal asymmetries in unpolarized SIDIS and Drell-Yan processes: a case study towards TMD factorization at subleading twist | ||||
Abstract | We consider the azimuthal distribution of the final observed hadron in semi-inclusive deep-inelastic scattering and the lepton pair in the Drell-Yan process. In particular, we focus on the $\cos \phi$ modulation of the unpolarized cross section and on its dependence upon transverse momentum. At low transverse momentum, for these observables we propose a factorized expression based on tree-level approach and conjecture that the same formula is valid in transverse-momentum dependent (TMD) factorization when written in terms of subtracted TMD parton distributions. Our formula correctly matches with the collinear factorization results at high transverse momentum, solves a long-standing problem and is a necessary step towards the extension of the TMD factorization theorems up to the subleading twist. | ||||
Author(s) | Alexei Prokudin, Alessandro Bacchetta, Marco Radici, M. Echevarria, C. Pisano, Giuseppe Bozzi | ||||
Publication Date | October 2019 | ||||
Document Type | Journal Article | ||||
Primary Institution | Thomas Jefferson National Accelerator Facility, Newport News | ||||
Affiliation | Theory & Comp Physics / THEORY CENTER / THEORY CENTER | ||||
Funding Source | Nuclear Physics (NP), NSF, ERC | ||||
Proprietary? | No | ||||
This publication conveys | Technical Science Results | ||||
Document Numbers |
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Associated with an experiment | No | ||||
Associated with EIC | No | ||||
Supported by Jefferson Lab LDRD Funding | No |
Journal Article
Journal Name | Physics Letters B |
Refereed | Yes |
Volume | 797 |
Issue | |
Page(s) | 134850 |
Attachments/Datasets/DOI Link
Document(s) |
cosphi_final.pdf
(STI Document)
1-s2.0-S0370269319305647-main.pdf
(Accepted Manuscript)
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DOI Link | |
Dataset(s) | (none) |
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