# Symbol over a line

• Nov 18th 2013, 06:31 AM
topsquark
Symbol over a line
Say that I want to put a W stacked on top of a line, say \overline. For example, I want to specify that an interaction
 http://www.texify.com/img/%5CLARGE%5...2B%20e%5E-.gif
is mediated by a Z particle. I want to put a small Z over the arrow.

-Dan
• Nov 23rd 2013, 11:40 AM
DavidB
Re: Symbol over a line
I think you use overset:

For example,
Code:

\overset{z}{\rightarrow}
displays as follows

$\overset{z}{\rightarrow}$
• Nov 23rd 2013, 04:58 PM
topsquark
Re: Symbol over a line
Quote:

Originally Posted by DavidB
I think you use overset:

For example,
Code:

\overset{z}{\rightarrow}
displays as follows

$\overset{z}{\rightarrow}$

$e^- + e^- \overset{Z^0}{\longrightarrow} e^- + e^-$

That's the one! Thanks.

-Dan