Searches for axion-like particles via $γγ$ fusion at future $\mathrm{e}^+\mathrm{e}^-$ colliders
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| Format: | Preprint |
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2023
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| _version_ | 1866916178887180288 |
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| author | Teles, Patricia Rebello d'Enterria, David Gonçalves, Victor P. Martins, Daniel E. |
| author_facet | Teles, Patricia Rebello d'Enterria, David Gonçalves, Victor P. Martins, Daniel E. |
| contents | Opportunities for searches for axion-like particles (ALPs) coupling to photons in $\mathrm{e}^+\mathrm{e}^-$ collisions at the Future Circular Collider (FCC-ee) and International Linear Collider (ILC) are investigated. We perform a study of the photon-fusion production of ALPs decaying into two photons, $\mathrm{e}^+\mathrm{e}^- \overset{γγ}{\longrightarrow} \mathrm{e}^{+}\;a(γγ)\;\mathrm{e}^{-}$, over the light-by-light continuum background, for the planned FCC-ee and ILC center-of-mass energies and integrated luminosities. An analysis of the feasibility measurements is presented using parametrized simulations for two types of detectors. Upper limits at 95% confidence level (CL) on the cross section for ALP production, $σ(γγ\to a \to γγ)$, and on the ALP-photon coupling are obtained over the $m_a \approx 0.1$--1000 GeV ALP mass range, and compared to current and future collider searches. Production cross sections down to $σ(γγ\to a \to γγ) \approx 1$ fb (1 ab) will be probed at $m_a\approx 1$ (300) GeV, corresponding to constraints on the axion-photon coupling as low as $g_\mathrm{aγγ} \approx 2\cdot10^{-3}$ TeV$^{-1}$. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2310_17270 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Searches for axion-like particles via $γγ$ fusion at future $\mathrm{e}^+\mathrm{e}^-$ colliders Teles, Patricia Rebello d'Enterria, David Gonçalves, Victor P. Martins, Daniel E. High Energy Physics - Experiment High Energy Physics - Phenomenology Opportunities for searches for axion-like particles (ALPs) coupling to photons in $\mathrm{e}^+\mathrm{e}^-$ collisions at the Future Circular Collider (FCC-ee) and International Linear Collider (ILC) are investigated. We perform a study of the photon-fusion production of ALPs decaying into two photons, $\mathrm{e}^+\mathrm{e}^- \overset{γγ}{\longrightarrow} \mathrm{e}^{+}\;a(γγ)\;\mathrm{e}^{-}$, over the light-by-light continuum background, for the planned FCC-ee and ILC center-of-mass energies and integrated luminosities. An analysis of the feasibility measurements is presented using parametrized simulations for two types of detectors. Upper limits at 95% confidence level (CL) on the cross section for ALP production, $σ(γγ\to a \to γγ)$, and on the ALP-photon coupling are obtained over the $m_a \approx 0.1$--1000 GeV ALP mass range, and compared to current and future collider searches. Production cross sections down to $σ(γγ\to a \to γγ) \approx 1$ fb (1 ab) will be probed at $m_a\approx 1$ (300) GeV, corresponding to constraints on the axion-photon coupling as low as $g_\mathrm{aγγ} \approx 2\cdot10^{-3}$ TeV$^{-1}$. |
| title | Searches for axion-like particles via $γγ$ fusion at future $\mathrm{e}^+\mathrm{e}^-$ colliders |
| topic | High Energy Physics - Experiment High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2310.17270 |