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arXiv 2509.03486hep-phhep-exnucl-ex
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利用几 MeV 质子束在地下深处探测轻标量玻色子

Probing a Light Scalar Boson with a few-MeV Proton Beam Deep Underground

Carlo Broggini, Giuseppe Di Carlo, Luca Di Luzio, Denise Piatti, Claudio Toni

AI总结:

本文提出利用 Gran Sasso 地下实验室的 3.5 MV 加速器产生几 MeV 质子束打靶,作为轻标量玻色子 $ϕ$ 的可控源,并结合大体积低本底探测器进行搜寻,为探测超出标准模型的新玻色子提供了新途径。

摘要:

我们提议利用位于地下 Gran Sasso 国家实验室的 Bellotti 离子束设施的 3.5 MV 加速器,研究低能质子-核相互作用中轻标量玻色子 $ϕ$ 的产生。几 MeV 质子束在合适靶材料上引发的核反应可作为 $ϕ$ 粒子的可控源。由于地处地下深处,该设施受益于显著的宇宙射线屏蔽,能够以极低的本底搜寻稀有过程。将使用 Gran Sasso 国家实验室中已运行或正在建造的大体积、低本底探测器来寻找产生的 $ϕ$ 粒子。该方法将可调谐的加速器产生机制与地下稀有事件搜索的卓越灵敏度相结合,为探测超出标准模型的轻标量玻色子提供了一条新途径。

英文摘要:

We propose to investigate the production of a light scalar boson $ϕ$ in low-energy proton-nucleus interactions using the 3.5 MV accelerator of the Bellotti Ion Beam Facility, located in the underground Gran Sasso National Laboratory. Nuclear reactions induced by a few-MeV proton beam on suitable target materials can act as a controlled source of $ϕ$ particles. Owing to the deep-underground location, the facility benefits from substantial cosmic-ray shielding, enabling searches for rare processes with minimal background. The produced $ϕ$ particles will be sought with large-volume, low-background detectors already operating or currently under construction at the Gran Sasso National Laboratory. This approach combines a tunable accelerator-based production mechanism with the exceptional sensitivity of underground rare-event searches, offering a novel avenue to probe light scalar bosons beyond the Standard Model.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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