Particle Astrophysics

粒子天体物理学

• 批准号: 1000230524-2014
• 负责人: Kraus, Christine
• 金额: $ 7.29万
• 依托单位: Laurentian University of Sudbury
• 依托单位国家: 加拿大
• 项目类别: Canada Research Chairs
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=642818
• 关键词: Particle; Astrophysics

SNOLAB is an international laboratory for particle astrophysics research. SNO+ is a multipurpose neutrino detector, located 2 km deep underground in Vale's Creighton mine which will be used to study tiny particles called neutrinos from the sun, a nearby supernova, the earth or close-by reactors. The detector consists of a large acrylic vessel filled with a liquid organic scintillator and surrounded by light sensitive detectors (photomultipliers). By adding an additional element, in this case Tellurium into the detector volume, a very rare decay can be observed and the results can be used to deepen our understanding of the properties of neutrinos. If the neutrino is its own antiparticle, a so-called Majorana particle, we have observed a symmetry violation, which could contribute to our understanding of why we have significantly more matter than antimatter in our universe. Neutrinos and their properties are the key to a number of open questions in the field of particle astrophysics today.

SNOLAB是一个粒子天体物理研究的国际实验室。SnO+是一种 多用途中微子探测器，位于淡水河谷Creighton矿地下2公里深处 它将被用来研究来自太阳、附近的超新星、地球或附近反应堆的被称为中微子的微小粒子。探测器由一个装满液体有机闪烁体的大型丙烯酸容器组成，周围环绕着光敏探测器(光电倍增管)。通过在探测器体积中添加额外的元素，在这种情况下是碲，可以观察到非常罕见的衰变，结果可以用来加深我们对中微子性质的理解。如果中微子是它自己的反粒子，即所谓的马约拉纳粒子，我们观察到了对称性破坏，这可能有助于我们理解为什么我们的宇宙中物质比反物质多得多。中微子及其性质是当今粒子天体物理学领域一些悬而未决的问题的关键。