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| Autori principali: | , |
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| Natura: | Preprint |
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2026
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| Accesso online: | https://arxiv.org/abs/2605.01952 |
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| _version_ | 1866913084764848128 |
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| author | Xie, Xiupeng Lu, Zhun |
| author_facet | Xie, Xiupeng Lu, Zhun |
| contents | We study the twist-3 transverse momentum dependent distributions of gluons in a nucleon within a spectator model framework. In this model, the nucleon is described as emitting a virtual (time-like) gluon and an on-shell spectator particle, with the spectator mass treated continuously via a spectral function. The twist-3 gluon-gluon correlators, $Φ^{+i;+-}$ and $Φ^{ij;l+}$, are parameterized by a set of complex functions, whose real and imaginary parts correspond to T-even and T-odd components, respectively. We numerically check the equation of motion relation for these distributions and find that relation holds fairly well in the spectator model. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2605_01952 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Twist-3 transverse momentum dependent gluon distributions in a spectator model Xie, Xiupeng Lu, Zhun High Energy Physics - Phenomenology We study the twist-3 transverse momentum dependent distributions of gluons in a nucleon within a spectator model framework. In this model, the nucleon is described as emitting a virtual (time-like) gluon and an on-shell spectator particle, with the spectator mass treated continuously via a spectral function. The twist-3 gluon-gluon correlators, $Φ^{+i;+-}$ and $Φ^{ij;l+}$, are parameterized by a set of complex functions, whose real and imaginary parts correspond to T-even and T-odd components, respectively. We numerically check the equation of motion relation for these distributions and find that relation holds fairly well in the spectator model. |
| title | Twist-3 transverse momentum dependent gluon distributions in a spectator model |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2605.01952 |