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2 decay amplitudes, I

truecm

The strong interaction, S-wave, phase shifts for scattering are defined as:

where I denotes the total isospin and a c.o.m. energy equal to the Kaon mass is understood. In fact, since a 2 state cannot transform into 3 or 4 states by energy conservation, Eq. (2.1) can be rewritten as:

2 decay amplitudes of and are defined according to:

(The factor is inserted to simplify later formulae). Symmetry relations are as follows.

Writing, for fixed I:

the symmetry properties of the various components of the amplitude are those given in the Table.

Tab.2

In this case, we may have CP conserved and CPT violated or viceversa. B is exclusively a signal of CPT violation.



Carlos E.Piedrafita