The tensor meson has and decays strongly into two pions in about of its decays

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 tensor meson

f_2(1270)

has

J^P = 2^+

and decays strongly into two pions in about

84\%

of its decays, two thirds of those as

\pi^+\pi^-

. Each pion has intrinsic parity

P(\pi) = -1

and spin

0

. ((a)) Find the orbital angular momentum

L

of the two-pion final state. ((b)) Compute the total parity of the final state and state whether the decay is allowed by parity.

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