面向低能反质子与原子核湮灭过程的研究
仪器与探测器
2025-03-18 v1 核实验
摘要
ASACUSA 设施正在进行一项关于反质子在薄固体靶上静止湮灭的研究，该设施现具备一条用于 250 eV 低速提取的专用束线。实验将采用新技术，如与硅传感器耦合的 Timepix4 ASIC，来测量薄固体靶中产生的各种粒子射流的总多重性、能量和角分布。一个由七个 Timepix4 探测器组成的探测系统正在建设中，覆盖了大部分立体角。利用蒙特卡洛模拟，已开发出一种从单平面探测器中的粒子轨迹进行三维湮灭顶点重建的算法。这些测量将使人们能够研究反质子-原子核相互作用及其对原子核质量的依赖关系和分支比。结果将用于评估并潜在地改进各种模拟模型。
引用
@article{arxiv.2503.04868,
title = {Towards a Study of Low Energy Antiproton Annihilations on Nuclei},
author = {Viktoria Kraxberger and Marcus Bumbar and Angela Gligorova and Claude Amsler and Matias Bayo and Horst Breuker and Matti Cerwenka and Giovanni Costantini and Rafael Ferragut and Marco Giammarchi and Giulia Gosta and Hiroyuki Higaki and Eric D. Hunter and Carina Killian and Naofumi Kuroda and Marco Leali and Giancarlo Maero and Chloe Malbrunot and Valerio Mascagna and Yasuyuki Matsuda and Stefano Migliorati and Daniel Murtagh and Amit Nanda and Lilian Nowak and Massimiliano Romé and Martin C. Simon and Minori Tajima and Valerio Toso and Stefan Ulmer and Luca Venturelli and Alina Weiser and Eberhard Widmann and Yasunori Yamazaki},
journal= {arXiv preprint arXiv:2503.04868},
year = {2025}
}
备注
Submitted to PoS, Proceedings for the International Conference on Exotic Atoms and Related Topics and Conference on Low Energy Antiprotons, EXA/LEAP2024