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作者 KBmax 在 PTT [ Physics ] 看板的留言(推文), 共422則
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1F推: 呃...有啊@@?10/23 02:50
3F推: 不就top down跟bottom up?10/19 02:36
1F推: alpha decay happens when the nuclear force, which is th09/26 01:10
2F→: e complication of the strong interaction, cannot compen09/26 01:10
3F→: sate the electrostatic repulsion between protons. There09/26 01:10
4F→: fore it’s a phenomenon at nuclear level, while the bet09/26 01:10
5F→: a decay, which is governed by weak interaction, is sort09/26 01:10
6F→: of process at fundamental particle level.09/26 01:10
7F推: roughly speaking, beta decay happens “inside” the nuc09/26 01:20
8F→: leons, where strength of weak interaction is still cons09/26 01:20
9F→: iderable, but alpha decay happens outside nucleons and09/26 01:20
10F→: inside a nuclei, where weak interaction is negligible.09/26 01:20
11F→: So we can rule out the weak interaction in alpha decay09/26 01:20
12F→: process.09/26 01:20
13F→: reminder: the range of weak interaction is about 1/Mw~09/26 01:21
14F→: 0.0025 fm, while the nuclear force range is about 1 fm09/26 01:21
15F→: which is the size of a nuclei.09/26 01:21
1F推: 八成聽不懂研究學者在講什麼,直接唬爛吧......05/23 11:23
18F推: 反正數學定理只有在具有物理意義的情況下 才會被重視吧,02/18 19:10
19F→: 事實上不少情況 數學定理本身和適用條件等都有機會對應到一02/18 19:10
20F→: 個物理圖像(只是想不想得到罷了02/18 19:10
20F推: 同意樓上而且這裡應該是沒有要討論Open quantum system 啦X11/01 22:17
21F→: D11/01 22:17
5F推: 樓上我還以為你說糖phone XDDD09/10 20:03
2F推: 或是你要找我這個物研所正取ㄧ幫你補也可以^_<08/22 11:54
56F推: 我自己也覺得這個問題很有趣,只是對量子達爾文主義這名字08/14 00:11
57F→: 有點感冒...有點太哲學到不太物理(名字的部分),很像平08/14 00:12
58F→: 行宇宙多重世界觀這種東西XD08/14 00:12
4F推: 已知用火05/15 11:11