Factorizes NRQCD production matrix elements for S- and P-wave quarkonia into wavefunctions and universal chromo-electric/magnetic gluon correlators via hybrid vNRQCD/pNRQCD and Hubbard-Stratonovich transformation at leading velocity order.
Modeling the TMD shape function in $J/\psi$ electroproduction
2 Pith papers cite this work. Polarity classification is still indexing.
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abstract
The next-to-leading order hard function for quarkonium electroproduction is calculated within the framework of transverse-momentum-dependent (TMD) factorization in the low-transverse-momentum regime. The structure of the TMD shape function in quarkonium leptoproduction is analyzed through its operator-level definition. Particular attention is given to the convolution of the unpolarized TMD gluon distribution with the TMD shape function, thereby illustrating the latter's phenomenological role. Building on this framework, we provide predictions for the unpolarized differential cross-section of $J/\psi$ electroproduction at the future Electron-Ion Collider in the region of small transverse momentum.
fields
hep-ph 2years
2026 2verdicts
UNVERDICTED 2representative citing papers
Using EFT techniques on a hybrid vNRQCD/pNRQCD Lagrangian, the work factorizes LDMEs and derives new constraints on TMD soft transition functions for S-wave quarkonia.
citing papers explorer
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Factorizing quarkonium production matrix elements using effective field theory
Factorizes NRQCD production matrix elements for S- and P-wave quarkonia into wavefunctions and universal chromo-electric/magnetic gluon correlators via hybrid vNRQCD/pNRQCD and Hubbard-Stratonovich transformation at leading velocity order.
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Factorizing quarkonium LDMEs and TMDSTFs using effective field theory
Using EFT techniques on a hybrid vNRQCD/pNRQCD Lagrangian, the work factorizes LDMEs and derives new constraints on TMD soft transition functions for S-wave quarkonia.