Testing the hypothesis of vector X17 boson by D meson, Charmonium, and $ϕ$ meson decays
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arXiv
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| Autori principali: | , , |
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| Natura: | Preprint |
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2025
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| _version_ | 1866917412306157568 |
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| author | Lee, Fei-Fan Uyen, Lam Thi Thuc Lin, Guey-Lin |
| author_facet | Lee, Fei-Fan Uyen, Lam Thi Thuc Lin, Guey-Lin |
| contents | The recent ATOMKI experiments provided evidence pointing towards the existence of an X17 boson in the anomalous nuclear transitions of Beryllium-8, Helium-4, and Carbon-12. In this work, we consider X17 boson contributions to the previously measured $D$ meson decays which include $D_s^{*+} \rightarrow D_s^+ e^+ e^-$, $D_s^{*+} \rightarrow D_s^+ γ$, $D^{*0} \rightarrow D^0 e^+ e^-$, and $D^{*0} \rightarrow D^0 γ$, as well as the measured decays of $ψ(2S) \rightarrow η_c e^+ e^-$, $ψ(2S) \rightarrow η_c γ$, $ϕ\rightarrow ηe^+ e^-$, and $ϕ\rightarrow ηγ$. Using the data of the above meson decays, we perform a fitting to the coupling parameters $\varepsilon_u, \varepsilon_c$, and $\varepsilon_s$ by treating the couplings $\varepsilon_u$ and $\varepsilon_c$ as independent from each other rather than assuming the generation universality $\varepsilon_u =\varepsilon_c$. It is found that the above fitting renders $|\varepsilon_c|=7.6\times 10^{-3}$, $|\varepsilon_s|=2.4\times 10^{-3}$ and a huge magnitude for $\varepsilon_u$, which is in serious tension with $\left|\varepsilon_u\right|$ determined from ATOMKI measurements. Using our fitted range for $\varepsilon_c$ and the range for $\varepsilon_d$ from ATOMKI measurements, we predict the range for $D^{*+} \rightarrow D^{+} e^+ e^-$ decay rate. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_13530 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Testing the hypothesis of vector X17 boson by D meson, Charmonium, and $ϕ$ meson decays Lee, Fei-Fan Uyen, Lam Thi Thuc Lin, Guey-Lin High Energy Physics - Phenomenology High Energy Physics - Experiment The recent ATOMKI experiments provided evidence pointing towards the existence of an X17 boson in the anomalous nuclear transitions of Beryllium-8, Helium-4, and Carbon-12. In this work, we consider X17 boson contributions to the previously measured $D$ meson decays which include $D_s^{*+} \rightarrow D_s^+ e^+ e^-$, $D_s^{*+} \rightarrow D_s^+ γ$, $D^{*0} \rightarrow D^0 e^+ e^-$, and $D^{*0} \rightarrow D^0 γ$, as well as the measured decays of $ψ(2S) \rightarrow η_c e^+ e^-$, $ψ(2S) \rightarrow η_c γ$, $ϕ\rightarrow ηe^+ e^-$, and $ϕ\rightarrow ηγ$. Using the data of the above meson decays, we perform a fitting to the coupling parameters $\varepsilon_u, \varepsilon_c$, and $\varepsilon_s$ by treating the couplings $\varepsilon_u$ and $\varepsilon_c$ as independent from each other rather than assuming the generation universality $\varepsilon_u =\varepsilon_c$. It is found that the above fitting renders $|\varepsilon_c|=7.6\times 10^{-3}$, $|\varepsilon_s|=2.4\times 10^{-3}$ and a huge magnitude for $\varepsilon_u$, which is in serious tension with $\left|\varepsilon_u\right|$ determined from ATOMKI measurements. Using our fitted range for $\varepsilon_c$ and the range for $\varepsilon_d$ from ATOMKI measurements, we predict the range for $D^{*+} \rightarrow D^{+} e^+ e^-$ decay rate. |
| title | Testing the hypothesis of vector X17 boson by D meson, Charmonium, and $ϕ$ meson decays |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2501.13530 |