For example, the nuclear force is a strong force over short distances, but it rapidly weakens and becomes almost zero when the distance exceeds a certain point. In 1935, Hideki Yukawa predicted that the nuclear force occurs through the exchange of a particle he called a quantum ton, and, estimating from the range of the nuclear force, predicted that the mass of this particle was about 200 times that of an electron. In 1948, such a particle was actually discovered. Today, it is called a pion (a meson). *Some of the terminology that refers to the "range of nuclear force" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…たとえば核力は短距離では強い力だが,ある距離以上離れると急激に弱くなり,ほとんど0になってしまう。35年湯川秀樹は,核力は重量子と名づけた粒子の交換によって起こるとし,核力の到達範囲から推定してその粒子の質量は電子の200倍程度であると予言,48年実際にそのような粒子が発見された。今日π中間子と呼ばれるものである(中間子)。… ※「核力の到達範囲」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
<<: Saturation of nuclear forces
>>: Academic achievement survey - gakuryokuchosa
...The Schwarz–Christoffel formula is used to exp...
A Buddhist monk from India who translated Buddhis...
…When excited, the polarity of the inside and out...
Manabon refers to the kanji itself, as opposed to...
A provincial city located on the right bank of the...
A system in which workers who joined the company e...
...There are various types of subordinate clauses...
A large palm plant that is usually cultivated and ...
For example, the French word représentation, whic...
〘 noun 〙 The fat part under the skin of a whale. I...
...In these circumstances, it was difficult to or...
Joruri Gidayubushi (Japanese traditional chant). ...
〘Noun〙① In ancient Chinese thought, the five eleme...
〘Noun〙 The deity worshipped at the market. One of ...
?-955 A ruler of the Kara-Khanid dynasty. The prot...