Question

Find the strangeness `S` and the hypercharge `Y` of a neutral elementry particle whose isotopic spin projection is `T_(z)= +1//2` and baryon charge `B= +1`. What particle is this.

Answer 1

From the Gell-Mann Nishijama formula
`Q=T_(Ƶ)+(Y)/(2)`
we get `O=(1)/(2)+(Y)/(2) or Y=-1`
Also `Y=B+Simplies S-2`. Thus the particle is `=^(o)0`