| pion decay modes -
03-28-2007, 02:59 PM
The three species of pions are p+, p-, and p°. Each of these is involved in at the least one mode of particle creation and annihilation. Neglecting their probabilities the following symmetrical reactions are all theoretically possible: (1) p- + p « n, (2) p+ + n « p, and (3) p° + e+ « p. The question to be asked is why the proton (p) appears in all reactions? The neutron (n) appears twice, while all species of pions and the positron only appear once? Time independence: [∂E(g)]²=[∂F(a)×∂r(a)]·[∂F(b)×∂r(b)] and Mass independence: ¶a(t)·¶r(t)=c² |