From the post "Particle Wave Duality, Seriously MP",
\(\psi =\cfrac { mc^{ 2 } }{ 12\pi } \cfrac { 1 }{ x^{ 3 } }\)
\(\int _{ a }^{ b\rightarrow\infty }{ \psi }\, \partial x=\cfrac { mc^{ 2 } }{24 \pi } \cfrac { 1 }{ a^{2} }=+finite\) --- (*)
where \(a\) is the radius of the particle. The wave \(\psi\) was found to be of finite extend. This is the boundary between wave and particle; beyond \(x_b\) where \(\psi\) is small as delimited by (*), the particle cease to have wave property.
\(\psi_b=\cfrac { mc^{ 2 } }{ 12\pi } \cfrac { 1 }{ x_b^{ 3 } }\)
where \(\psi_b\rightarrow0\)
Theoretically.
