https://wiki.enpg.cn:4433/index.php?action=history&feed=atom&title=%E5%BF%AB%E5%BA%A6
快度 - 版本历史
2026-05-31T18:44:35Z
本wiki的该页面的版本历史
MediaWiki 1.36.1
https://wiki.enpg.cn:4433/index.php?title=%E5%BF%AB%E5%BA%A6&diff=81&oldid=prev
Qinz18：创建页面，内容为“== Rapidity == First,we know: \[ arctanh(x)=\frac{1}{2}\ln\frac{1+x}{1-x} \] Then define: '''rapidity''' \[ w=arctanh{\frac{v}{c}}=arctanh{\frac{|p|c}{E}}=\frac…”
2021-09-04T02:03:03Z
<p>创建页面，内容为“== Rapidity == First,we know: \[ arctanh(x)=\frac{1}{2}\ln\frac{1+x}{1-x} \] Then define: '''rapidity''' \[ w=arctanh{\frac{v}{c}}=arctanh{\frac{|p|c}{E}}=\frac…”</p>
<p><b>新页面</b></p><div>== Rapidity ==<br />
<br />
First,we know:<br />
\[<br />
arctanh(x)=\frac{1}{2}\ln\frac{1+x}{1-x}<br />
\]<br />
<br />
Then define:<br />
<br />
'''rapidity'''<br />
\[<br />
w=arctanh{\frac{v}{c}}=arctanh{\frac{|p|c}{E}}=\frac{1}{2}\ln\frac{E+|p|c}{E-|p|c}<br />
\]<br />
<br />
'''pseudorapidity'''<br />
\[<br />
\eta=arctanh{\frac{v_z}{v}}=arctanh{\frac{|p_z|}{|p|}}=\frac{1}{2}\ln\frac{|p|+|p_z|}{|p|-|p_z|}=-\ln(\tan(\frac{\theta}{2}))<br />
\]<br />
<br />
'''rapidity in high energy experiment'''<br />
\[<br />
y=arctanh{\frac{v_z}{c}}=arctanh{\frac{|p_z|c}{E}}=\frac{1}{2}\ln\frac{E+|p_z|c}{E-|p_z|c}<br />
\]</div>
Qinz18