Transverse momentum dependent factorization for SIDIS at next-to-leading power
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arXiv
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| Format: | Preprint |
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2023
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| _version_ | 1866909456116219904 |
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| author | Rodini, Simone Vladimirov, Alexey |
| author_facet | Rodini, Simone Vladimirov, Alexey |
| contents | The semi-inclusive deep-inelastic scattering (SIDIS) is the golden process for investigating the nucleon's transverse momentum-dependent (TMD) structure. We present the complete expression for SIDIS structure functions in the TMD factorization formalism at the next-to-leading power. All perturbative elements of the factorization theorem -- coefficient functions and evolution kernels -- are presented at one-loop accuracy. We found several differences with earlier derivations, which are due to accounting for nontrivial kinematics of the quark-gluon interference terms. As a side result, we present the definition and evolution of twist-three TMD fragmentation functions, including the leading-order evolution kernel. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2306_09495 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Transverse momentum dependent factorization for SIDIS at next-to-leading power Rodini, Simone Vladimirov, Alexey High Energy Physics - Phenomenology Nuclear Theory The semi-inclusive deep-inelastic scattering (SIDIS) is the golden process for investigating the nucleon's transverse momentum-dependent (TMD) structure. We present the complete expression for SIDIS structure functions in the TMD factorization formalism at the next-to-leading power. All perturbative elements of the factorization theorem -- coefficient functions and evolution kernels -- are presented at one-loop accuracy. We found several differences with earlier derivations, which are due to accounting for nontrivial kinematics of the quark-gluon interference terms. As a side result, we present the definition and evolution of twist-three TMD fragmentation functions, including the leading-order evolution kernel. |
| title | Transverse momentum dependent factorization for SIDIS at next-to-leading power |
| topic | High Energy Physics - Phenomenology Nuclear Theory |
| url | https://arxiv.org/abs/2306.09495 |