Axion-like Particle Search with a Light-Shining-Through-Walls Setup at a $γ$-$γ$ Collider
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866909967047458816 |
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| author | Yan, Zi-Yao Feng, Jie |
| author_facet | Yan, Zi-Yao Feng, Jie |
| contents | In this work, we have explored a practical extension of the conventional light-shining-through-walls technique by making direct use of the high-intensity $γ$-ray beam available at a $γ$-$γ$ collider. The energetic and highly collimated photon flux produced via inverse Compton scattering naturally provides an efficient ALP production stage, while the addition of a regeneration region downstream enables a complete LSW configuration without introducing new experimental complexities. This approach therefore represents an experimentally simple and infrastructure-compatible method for enhancing laboratory sensitivity to axion-like particles. Under conservative assumptions, we find that one year of operation can probe ALP-photon couplings down to $g_{aγγ}\simeq 3.82\times 10^{-5} \,\mathrm{GeV^{-1}}$ for $m_a\lesssim 0.1 \,\mathrm{eV}$ when an additional magnetic region is included upstream of the beam dump, improving upon previous laboratory LSW limits by up to an order of magnitude. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2512_15192 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Axion-like Particle Search with a Light-Shining-Through-Walls Setup at a $γ$-$γ$ Collider Yan, Zi-Yao Feng, Jie High Energy Physics - Phenomenology In this work, we have explored a practical extension of the conventional light-shining-through-walls technique by making direct use of the high-intensity $γ$-ray beam available at a $γ$-$γ$ collider. The energetic and highly collimated photon flux produced via inverse Compton scattering naturally provides an efficient ALP production stage, while the addition of a regeneration region downstream enables a complete LSW configuration without introducing new experimental complexities. This approach therefore represents an experimentally simple and infrastructure-compatible method for enhancing laboratory sensitivity to axion-like particles. Under conservative assumptions, we find that one year of operation can probe ALP-photon couplings down to $g_{aγγ}\simeq 3.82\times 10^{-5} \,\mathrm{GeV^{-1}}$ for $m_a\lesssim 0.1 \,\mathrm{eV}$ when an additional magnetic region is included upstream of the beam dump, improving upon previous laboratory LSW limits by up to an order of magnitude. |
| title | Axion-like Particle Search with a Light-Shining-Through-Walls Setup at a $γ$-$γ$ Collider |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2512.15192 |