Help looking for a string theory equation.

[joeltopian]

ever since i heard about how string theory clames to be able to describe particles through string vibrations, i have been looking for the equation that relates particles to string vibrations, i.e., by using this equation i could as a example:"see what string vibration is a electron". do any of you know this equation, and can you please provide it?
thank you.
PS: i want the superstring one.

 

[suprised]

There is no simple equation that defines an electron. But can write down approximate equations for the mass spectrum for example, and other equations eq for the gauge charges and spins of the vibrations. All these depend on the specific vacuum state chosen. If the vacuum is chosen properly, then some of the vibrations can have the correct quantum numbers to describe an electron, say.