This article does a great job with the background, explaining the tetraquark quite well, but there’s not much about quark stars except to suggest that things are going to get interesting.
Originally shared by Brian Koberlein
CERN has discovered an exotic particle they think is a tetraquark. What’s a tetraquark? And how does it relate to astrophysics? Find out in the latest article I’ve written for Universe Today.
http://www.universetoday.com/111110/how-cerns-discovery-of-exotic-particles-may-affect-astrophysics/