Quote:
Originally Posted by Profpat |
Pat, Thank you very much for this information, you are a treasure trove. Personally, I do not go for the extreme, and I have to place this with other extreme examples found in science, as a creation found in the lab. What is interesting, though, is that it exists for just a fragment of time in quite a narrow pentaquark state. From June 2008 Wikipedia:
"Several experiments since 2003 have been claimed to reveal a pentaquark with a
mass of about 1540
MeV, presumably composed of two up quarks, two down quarks and an anti-strange quark (uudds). This is the minimal quark composition of an object with baryon number 1, and positive
strangeness."
From this information, I could propose that it does behave much like the pentaist pyramid, in which the top is actually not much more than a name tag (but real as a name tag is a real attribute). Yet I would have to dig in deeper to get a better grip on the data. What I find interesting is that the positive strangeness pentaquark contains an anti-strange quark. Though exactly how it should be, this is revealing. Still, it is difficult for my brain to quickly find an example that fits the situation perfectly.