The meson has quark content .

PHYSICS · Multi-part · Fermi University Physics · Quantum Mechanics · Particle Physics & Quantum Fields · Particles, interactions and experiment

Particle Physics, Ch Hadrons: baryons, mesons and their quark content

Problem

The

K^0

meson has quark content

d\bar s

. ((a)) Compute its charge

Q

, baryon number

B

and strangeness

S

by summing over the quark and the antiquark. ((b)) State the two totals allowed when two spin-

1/2

labels are combined, and say which total is the measured ground-state spin of the

K^0

(mass

497.6\,\mathrm{MeV}/c^2

), given it is the same type of particle as the

\pi^+