Some novel considerations about the collective coordinates approximation for the scattering of ${\varphi }^4$ kinks

Carlos F. S. Pereira, Gabriel Luchini, Tadeu Tassis +1

The collective coordinates approximation for the kink/anti-kink scattering in the $1+1$ dimensional ${\varphi }^4$ model is considered and we discuss how the results found in the current li…