Accessing nucleon transversity with one-point energy correlators
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arXiv
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| Auteurs principaux: | , , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866913043820052480 |
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| author | Gao, Mei-Sen Kang, Zhong-Bo Li, Wanchen Shao, Ding Yu |
| author_facet | Gao, Mei-Sen Kang, Zhong-Bo Li, Wanchen Shao, Ding Yu |
| contents | We propose a novel probe of the nucleon's transversity distribution, $h_1^q$, using the one-point energy correlator (OPEC), an infrared-and-collinear safe jet substructure observable. We demonstrate that in transversely polarized $p^{\uparrow}p$ collisions, the OPEC exhibits a single-spin asymmetry (SSA) with a clean $\sin(ϕ_s - ϕ_n)$ angular dependence. This method probes SSA over a much wider kinematic range in the angular scale $θ_n$ compared to traditional measurements of hadron transverse momentum~$j_\perp$, establishing a complementary and systematically distinct channel to study the nucleon's three-dimensional structure at RHIC and the future Electron-Ion Collider. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_15809 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Accessing nucleon transversity with one-point energy correlators Gao, Mei-Sen Kang, Zhong-Bo Li, Wanchen Shao, Ding Yu High Energy Physics - Phenomenology High Energy Physics - Experiment Nuclear Experiment Nuclear Theory We propose a novel probe of the nucleon's transversity distribution, $h_1^q$, using the one-point energy correlator (OPEC), an infrared-and-collinear safe jet substructure observable. We demonstrate that in transversely polarized $p^{\uparrow}p$ collisions, the OPEC exhibits a single-spin asymmetry (SSA) with a clean $\sin(ϕ_s - ϕ_n)$ angular dependence. This method probes SSA over a much wider kinematic range in the angular scale $θ_n$ compared to traditional measurements of hadron transverse momentum~$j_\perp$, establishing a complementary and systematically distinct channel to study the nucleon's three-dimensional structure at RHIC and the future Electron-Ion Collider. |
| title | Accessing nucleon transversity with one-point energy correlators |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment Nuclear Experiment Nuclear Theory |
| url | https://arxiv.org/abs/2509.15809 |