I was looking at the wikipedia "List of particles" (http://en.wikipedia.org/wiki/List_of_particles) and I came across something called a "Branon." Wikipedia didn't have a page for it, but upon searching google I found a few papers on it. Still being in school, I could understand very little of the papers but I think it is a boson needed for either branes to keep their 7 extra dimensions "rolled up" or it is some kind of boson which is exchanged between different branes. I did see that it was a Dark Matter candidate as it would be a WIMP. Now that is a very big guess because in all honesty I understood almost none of the papers. But I would appreciate it if someone could possibly set me straight. What on earth is a branon?