Energy and Momentum Conservation in a  K⁰ kaon decay process

 The process decay is:

Fig.1. This part of a bubble chamber picture (University of Birmingham) shows the main interaction of interest, which is the decay into and

According to the scheme:

Fig.2  A pion  decay process

Where the momentum conservation law in the  direction is written as:

           (2.1)

The energy conservation law is:

    (2.2)

where  is available either for  and .

These relations can be used experimentally to identify the initial particle which decays to the  and .

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