From freyablekman http://status.hackerposse.com/url/17743 on Twitter: #CMSPaper 1214: Ypsilon mesons have different masses depending on the spins of their b quark+antiquark. It's the first time Y's 3S state is seen in lead collisions. This results measures the quark-gluon plasma and how quarks stay together inside particles http://status.hackerposse.com/url/24362 http://s…