重光子搜寻实验
高能物理 - 实验
2022-03-17 v1
摘要
重光子搜寻（HPS）实验旨在搜寻质量范围20 MeV/至220 MeV/、与标准模型光子动力学混合且耦合的新矢量玻色子。除了探索难以用高能对撞机探测的轻质量弱耦合物理的普遍重要性外，此搜寻的主要动机在于亚GeV热遗迹构成暗物质的可能性，该情形需要一个新的相当轻的介质子，其中具有隐藏规范对称性、“暗”、“隐藏 sector”或“重”光子的模型尤其具吸引力。HPS利用其对照电荷的小耦合，通过类似于固定靶中轫致辐射的过程产生这些重光子，并在紧凑谱仪中探测其随后衰变至对的可见特征。除了在巨大QED本底上搜寻共振外，HPS能够精确测量衰变长度，从而对暗光子及其他长寿命新物理具有独特灵敏度。在2015和2016年于JLab CEBAF完成工程运行后，2019和2021年的物理运行已提供数据集，目前正在分析中以搜寻暗光子及其他新现象。
引用
@article{arxiv.2203.08324,
title = {The Heavy Photon Search Experiment},
author = {Nathan Baltzell and Marco Battaglieri and Mariangela Bondi and Sergei Boyarinov and Cameron Bravo and Stephen Bueltmann and Volker Burkert and Pierfrancesco Butti and Tongtong Cao and Massimo Carpinelli and Andrea Celentano and Gabriel Charles and Chris Cuevas and Annalisa D'Angelo and Domenico D'Urso and Natalia Dashyan and Marzio De Napoli and Raffaella De Vita and Alexandre Deur and Miriam Diamond and Raphael Dupre and Rouven Essig and Vitaliy Fadeyev and R. Clive Field and Alessandra Filippi and Sarah Gaiser and Nerses Gevorgyan and Norman Graf and Mathew Graham and Michel Guidal and Ryan Herbst and Maurik Holtrop and John Jaros and Robert Johnson and Valery Kubarovsky and Dominique Marchand and Luca Marsicano and Takashi Maruyama and Samantha McCarty and Jeremy McCormick and Bryan McKinnon and Omar Moreno and Carlos Munoz-Camacho and Timothy Nelson and Silvia Niccolai and Rory O'Dwyer and Rafayel Paremuzyan and Emrys Peets and Nunzio Randazzo and Benjamin Raydo and Benjamin Reese and Philip Schuster and Gabriele Simi and Valeria Sipala and Matthew Solt and Alic Spellman and Stepan Stepanyan and Holly Szumila-Vance and Lauren Tompkins and Natalia Toro and Maurizio Ungaro and Hakop Voskanyan},
journal= {arXiv preprint arXiv:2203.08324},
year = {2022}
}
备注
Submitted to the Proceedings of the US Community Study on the Future of Particle Physics (Snowmass 2021)