中微子

This property, often called "helicity," serves to differentiate the neutrino from its antiparticle.

这种性质通常称为"螺旋性"，可以用来区分中微子和它的反粒子。

The studies on SNP in particle physics and in astrophysics are also discussed respectively.

对太阳中微子问题可从粒子物理和天体物理两个方面进行研究。

But I did do some reading and here is what I found. A neutrino is a particle that comes from beta decay and has three different types called flavors.

但是我有一些涉猎，并且发现：中微子是由β衰败产生的，并且具有三种不同的味。

Electron neutrinos are generated whenever neutrons change into protons, the two forms of beta decay.

电子型中微子在中子转化为原子时被生成，即两种贝塔衰变的模式。

It is shown that baryogenesis via leptogenesis occurs quite naturally, with a single phase (determined from neutrino oscillation data) appearing in leptonic asymmetry and in neutrinoless double beta decay.

而且能很自然地由轻子数破坏产生重子不对称的实验观测值。很有趣的是这类模型中出现在轻子不守恒和无中微子双beta衰变中的相位是一样的。

A neutrino hit a proton in a hydrogen bubble chamber.

一个中微子击中了氢气泡室中的一个质子。

This work is sometimes said to have influenced Paul Dirac in his creation of the Dirac equation for the relativistic electron, though Dirac stated that he invented these same matrices himself independently at the time, without Pauli's influence.

泡利的主要成就是在量子力学、量子场论和基本粒子理论方面，特别是泡利不相容原理的建立和β衰变中的中微子假说等，对理论物理学的发展做出了重要贡献。1945年，泡利因他在1925年即25岁时的"发现不相容原理"，获诺贝尔物理学奖。

There is a good chance that this outward diffusion of neutrinos and antineutrinos plays a crucial role in the supernova explosion.

中微子和反中微子的这种向外的散射很可能在超新星爆发中起着关键的作用。

But the relatively low-energy muons produced in the atmosphere can travel only a few kilometres. So by building neutrino arrays like ANTARES and IceCube deep under water or ice, astronomers can make sure that most of the muons they detect were actually produced by cosmic neutrinos.

在大气层中产生的能量较低的μ介子穿梭距离只有几公里，也就是说，制造类似&心宿二&和&冰块&这样深埋水下或冰层下的中微子望远镜阵列，能够确定探测到的绝大多数μ介子是否由宇宙中微子产生。

For instance, the electron neutrino is created from the change from proton to neutron while the electron antineutrino is formed from the change of a neutron to a proton.

例如，电子中微子是由质子转变成中子时产生的，儿电子反中微子则有中子转变为质子是产生。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。