正负电子

正負電子

zhèngfùdiànzǐ

noun

Meanings

1 positrons and electrons
2 positive and negative electrons

Characters

particle (suffix)

Examples

北京正负电子对撞机是中国重要的高能物理实验装置。

Běijīng zhèngfù diànzǐ duìzhuàngjī shì Zhōngguó zhòngyào de gāonéng wùlǐ shíyàn zhuāngzhì.

The Beijing Electron-Positron Collider is an important high-energy physics facility in China.

正负电子相遇时会发生湮灭。

Zhèngfù diànzǐ xiāngyù shí huì fāshēng yānmiè.

When positrons and electrons meet, annihilation occurs.

Tips

culture

正负电子对撞机 (BEPC, Beijing Electron-Positron Collider) was the first major high-energy physics machine in China, operational from 1989 at the Institute of High Energy Physics (中科院高能所). Its data on the τ lepton mass remains one of the most cited Chinese physics results.

memory

正 (positive) + 负 (negative) + 电子 (electron). 正电子 alone = positron; 负电子 alone = (negatively charged) electron. Pairing them as 正负电子 means 'both kinds together'.

Stroke Order

正 zhèng

负 fù

电 diàn

子 zǐ