Exploring the Discovery Reach for a 95 GeV Scalar in Future $e^+e^-$ Collisions
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| Main Authors: | , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866914138976944128 |
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| author | Kumar, Mukesh Sharma, Pramod Mosala, Karabo Mellado, Bruce |
| author_facet | Kumar, Mukesh Sharma, Pramod Mosala, Karabo Mellado, Bruce |
| contents | The observed indications for a new scalar resonance with a mass around 95\,GeV, initially reported by LEP and supported by CMS and ATLAS in di-photon, $ττ$, and $W^+ W^-$ channels, motivate exploring its discovery potential at future electron-positron colliders. This study focuses on the production of the new scalar ($S$) via $e^+ e^- \rightarrow ZS $ with $Z \rightarrow μ^+ μ^- $ and $S \rightarrow b \bar{b}$ and optimizes the signal recognition using the recoil-mass method. By employing deep neural networks for signal-background discrimination, we demonstrate that a 95\,GeV scalar, mixing with the Standard Model Higgs by an angle of $\sim$0.1, can be observed with a 5$σ$ significance at $\sqrt{s}$ = 250\,GeV or 200\,GeV with 5~ab$^{-1}$ of integrated luminosity. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2511_03479 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Exploring the Discovery Reach for a 95 GeV Scalar in Future $e^+e^-$ Collisions Kumar, Mukesh Sharma, Pramod Mosala, Karabo Mellado, Bruce High Energy Physics - Phenomenology The observed indications for a new scalar resonance with a mass around 95\,GeV, initially reported by LEP and supported by CMS and ATLAS in di-photon, $ττ$, and $W^+ W^-$ channels, motivate exploring its discovery potential at future electron-positron colliders. This study focuses on the production of the new scalar ($S$) via $e^+ e^- \rightarrow ZS $ with $Z \rightarrow μ^+ μ^- $ and $S \rightarrow b \bar{b}$ and optimizes the signal recognition using the recoil-mass method. By employing deep neural networks for signal-background discrimination, we demonstrate that a 95\,GeV scalar, mixing with the Standard Model Higgs by an angle of $\sim$0.1, can be observed with a 5$σ$ significance at $\sqrt{s}$ = 250\,GeV or 200\,GeV with 5~ab$^{-1}$ of integrated luminosity. |
| title | Exploring the Discovery Reach for a 95 GeV Scalar in Future $e^+e^-$ Collisions |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2511.03479 |