对这些正电子有一个可能解释，就是它们来自同一种暗物质以正、反物质形式出现的一对粒子的碰撞（物质湮灭），这样的暗物质又被称为“大质量弱相互作用粒子”（WIMP）。
One possible explanation for these positrons is the mutual annihilation of the matter and antimatter forms of a type of dark matter called weakly interacting massive particles, also known as WIMPs.
据称，在两个弱作用大质量粒子碰撞时会发生湮灭，并且放出伽马射线，类似费尔米卫星的探测器能够捕捉到这种信号。
These annihilations are thought to occur when two WIMPs collide, generating gamma-rays which can be picked up by detectors such as those on board Fermi.
正电子与人体组织中的电子发生作用而湮灭，产生两个伽玛射线光子。
These positrons then come into contact with electrons in the body, and the two annihilate, releasing two gamma-ray photons.
反物质，首先是由保罗·狄拉克(Paul Dirac)于1931年所预先估计出来的，它有着与正常物质相反的电荷，可以在一瞬间内与正物质能量的相互作用而湮灭。
Antimatter, first predicted by physicist Paul Dirac in 1931, has the opposite charge of normal matter and annihilates completely in a flash of energy upon interaction with normal matter.
因此，单模光场与此介质相互作用的哈密顿量正比于光场的湮灭算符与产生算符和的四次方。
Therefore interaction Hamitonian of the single mode light field with the medium is proportional to the fourth power of the annihilation operator plus creation operator.
古典人文教育注重个人在教育中的主体作用，然而，“群体”道德湮灭人在现实生活中的主体性。
The ancient humanistic education concerned a subjective role of the individual in the education, however, the group morality deprived a individual of the subjectivity in a realistic life.
古典人文教育注重个人在教育中的主体作用，然而，“群体”道德湮灭人在现实生活中的主体性。
The ancient humanistic education concerned a subjective role of the individual in the education, however, the group morality deprived a individual of the subjectivity in a realistic life.
应用推荐