You may have seen the recent articles about possible new evidence for strange matter stars. These stars would be similar to neutron stars except they are made of matter with 1 up quark, 1 down quark, and 1 strange quark. From my reading on the subject it seems that the huge pressure in a strange star is what keeps the strange matter stable. It is my understanding that small amounts of strange matter are not stable and decay in a small fraction of a second.
My first question is whether my understanding is correct so far.
Yesterday in the Dallas Morning News there was a story about two Southern Methodist University scientists who have examined seismic records and claim to have found evidence that two strange quark matter nuggets zipped through the earth in the fall of 1993. These nuggets were perhaps a millimeter across but weighed about a ton and would not have interacted with normal matter. The article states that strange quark matter is the most stable form of matter in the universe.
As I type this, I think I may have figured out the answer. Maybe.
A strange particle (the u/d/s kind) is the another name for a lambda particle, right? Lambda particles decay very quickly (I think).
Is the answer to my confusion that strange matter refers to atoms of multiple strange particles and that is the form of matter that is stable?
If that is correct, how many strange particles would exist in stable strange matter?