The lambda and omega baryons have this property, and first-order weak interactions usually change this property by 1.
In 2001, the KEK PS E373 created of particles that consist of a doublet of this property in the NIAGRA event. Farhi and Jaffe created a model of stable matter with this property. The horizontal lines on a baryon decuplet diagram show particles with equal amounts of this property, which was postulated when a certain particle had a measured lifetime 13 orders of magnitude greater than its predicted lifetime. The lambda and omega baryons have this property, and first-order weak interactions usually change this property by 1. Adding this property to the baryon number, multiplying the quantity by one-half, and adding the isospin gives the hypercharge according to the original Gell-Mann-Nishijima formula. K-mesons contain this particle along with either an up or down quark or antiquark. For 10 points, name this second-generation quark flavor discovered along with charm.
In 2001, the KEK PS E373 created of particles that consist of a doublet of this property in the NIAGRA event.
{Strangeness} (accept {strange quark})