PICASSO专用气泡探测器的模拟
Simulation of Special Bubble Detectors for PICASSO
摘要：
PICASSO项目是一项依靠过热液滴技术的冷暗物质（CDM）搜索实验。探测器使用过热的氟里昂液滴（活性材料）分散并捕获在聚合凝胶中。这种检测技术是基于过热液滴在室温和环境压力下的相变。当液滴中的原子核与进入的亚原子粒子相互作用时，由核反冲引起相变。这包括CDM粒子候选者中性伴子（一种尚未发现的粒子，在粒子物理学的标准模型的扩展中预测）。进行模拟，以了解探测器对中子和α粒子的响应，以及在蒙特利尔实验室获得的相应数据。
英文摘要：
The PICASSO project is a cold dark matter (CDM) search experiment relying on the superheated droplet technique. The detectors use superheated freon liquid droplets (active material) dispersed and trapped in a polymerized gel. This detection technique is based on the phase transition of superheated droplets at about room temperature and ambient pressure. The phase transition is induced by nuclear recoils when an atomic nucleus in the droplets interacts with incoming subatomic particles. This includes CDM particles candidate as the neutralino (a yet-to-discover particle predicted in extensions of the Standard Model of particle physics). Simulations performed to understand the detector response to neutrons and alpha particles are presented along with corresponding data obtained at the Montreal Laboratory.
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