Applied Physics and Mathematics Annotation << Back New insights in the standard model of quantum physics in Clifford Algebra (PART 2) C. Daviau J. Bertrand This is the second of three parts. It presents the first consequences of the extended invariance studied in the first part. We extend next this invariant theory to electro-weak and strong interactions. We present in this frame the experimental and theoretical recent works on magnetic monopoles. Keywords: invariance group, gauge invariance, electromagnetism, weak interactions, strong interactions, Clifford algebras, magnetic monopoles. Contacts: Еmail: bertrandjacques-m@orange.fr Pp. 20-49.