Nuclear, Particle and Weak Interaction Physics of the Big Bang and Stellar Collapse

大爆炸和恒星塌缩的核、粒子和弱相互作用物理学

• 批准号: 0653626
• 负责人: George Fuller
• 金额: $ 41.69万
• 依托单位: University of California-San Diego
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-07-01 至 2011-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0653626&HistoricalAwards=false
• 关键词: Nuclear; Particle; Weak; Interaction; Physics; Nuclear; Particle; Weak; Interaction; Physics

Neutrinos are ghostlike particles that experience notoriously weak interactions with matter. So, it may come as a surprise that neutrinos likely are responsible for much of the heavy lifting in astrophysical environments like the early universe and the gravitational collapse of massive stars and associated supernova explosions. Neutrinos can influence and even bring about the creation of the elements in these environments, from helium and deuterium nuclei in the Big Bang to iodine, gold, and uranium nuclei in the last wisp of material blown off the surface of a newly created neutron star. All this can happen because neutrinos more than make up for their feeble individual interactions with huge numbers.

中微子是幽灵般的粒子，臭名昭著地与物质相互作用。因此，令人惊讶的是，中微子可能是造成早期宇宙等天体物理环境中的许多繁重繁重的原因，以及大型恒星和相关的超新星爆炸的重力崩溃。中微子可以影响甚至带来这些环境中元素的创造，从大爆炸中的氦气和氘核到碘，黄金和铀核中的最后一批材料，从新创建的中子星的表面吹来。所有这一切都可能发生，因为中微子更多地弥补了他们与大量数量的微弱的个人互动。