The plan for a super $η$ factory at Huizhou accelerator complex
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arXiv
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| Main Authors: | , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866909416350023680 |
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| author | Chen, Xu-Rong He, Xiong-Hong Hu, Qiang Lin, De-Xu Liu, Yang Qiu, Hao Sun, Xu Tian, Ye Wang, Rong Zhang, Hong-Lin Zhang, Ya-Peng Zhao, Cheng-Xin |
| author_facet | Chen, Xu-Rong He, Xiong-Hong Hu, Qiang Lin, De-Xu Liu, Yang Qiu, Hao Sun, Xu Tian, Ye Wang, Rong Zhang, Hong-Lin Zhang, Ya-Peng Zhao, Cheng-Xin |
| contents | As an approximate Goldstone boson with zero quantum number and zero standard model charge, the decay processes of long-lived $η$ meson offer a unique opportunity to explore new physics beyond the standard model and new sources of CP violation, as well as test the low-energy QCD theory and measure the fundamental parameters of light quarks. To pursue these goals in the physics frontiers, we propose a plan to construct a super $η$ factory at HIAF high-energy terminal or at CiADS after its energy upgrade. The high-intensity proton beam at HIAF enables the production of a vast number of $η$ samples, exceeding $10^{13}$ events per year in the first stage, utilizing multiple layers of thin targets made of light nucleus. This paper presents the physics goals, the first-version conceptual design of the spectrometer, and some preliminary simulation results. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2407_00874 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | The plan for a super $η$ factory at Huizhou accelerator complex Chen, Xu-Rong He, Xiong-Hong Hu, Qiang Lin, De-Xu Liu, Yang Qiu, Hao Sun, Xu Tian, Ye Wang, Rong Zhang, Hong-Lin Zhang, Ya-Peng Zhao, Cheng-Xin High Energy Physics - Phenomenology As an approximate Goldstone boson with zero quantum number and zero standard model charge, the decay processes of long-lived $η$ meson offer a unique opportunity to explore new physics beyond the standard model and new sources of CP violation, as well as test the low-energy QCD theory and measure the fundamental parameters of light quarks. To pursue these goals in the physics frontiers, we propose a plan to construct a super $η$ factory at HIAF high-energy terminal or at CiADS after its energy upgrade. The high-intensity proton beam at HIAF enables the production of a vast number of $η$ samples, exceeding $10^{13}$ events per year in the first stage, utilizing multiple layers of thin targets made of light nucleus. This paper presents the physics goals, the first-version conceptual design of the spectrometer, and some preliminary simulation results. |
| title | The plan for a super $η$ factory at Huizhou accelerator complex |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2407.00874 |