The light scalar meson (also called the ) has and decays strongly into
PHYSICS · Multi-part · Fermi University Physics · Particle Physics & Quantum Fields · Symmetry, groups and the quark model · Symmetry, groups and the quark model
Particle Physics, Ch Parity, charge conjugation, time reversal and CPT
Problem
The light scalar meson f0(500) (also called the σ) has JP=0+ and decays strongly into π+π−. Each pion has intrinsic parity P(π)=−1 and spin 0.
((a)) Find the orbital angular momentum L of the two-pion final state, given that the parent has spin 0.
((b)) Compute the total parity of the final state and state whether the decay is allowed by parity.