Publications
about the Spin structure of Elementary Particles 

The
spin structure of elementary particles has been considered a pure quantum
mechanical and relativistic property. This
can be included as a complementary property of the Atomic Principle.
The atomic principle admits that matter cannot be divided indefinitely.
After a finite number of steps in the division of matter we reach an ultimate
object, an elementary particle. But the distinction between an elementary
particle and a bound system of particles is that an elementary particle,
if not annihilated with its antiparticle, can never be modified its structure
by any interaction. An electron, when accelerated, remains an electron.
This means that an elementary particle cannot have excited states and,
if not destroyed, its possible states are only kinematical modifications
of any one of them. If the state of an elementary particle changes, it
is possible to find another inertial observer who describes the particle
in the same state as before. For the description of an elementary particle
it is sufficient the description given by any arbitrary intertial observer.
It is the kinematical group of spacetime symmetries (the kinematical
group) which supplies the classical variables for describing
its states. Find here a DIDACTIC DEMO of the proposed electron structure where you can analyze the interaction of two electrons, including the formation of a bound pair of spin 1. For the numerical computation of the interaction between two spinning electrons, their scattering and the formation of bound pairs, you can use the Mathematica package ellaborated by Juan Barandiaran, entitled 

PAPERS  
Lecture
Notes of the Kinematical formalism of elementary spinning particles (pdf) Considerations
about photons and antiphotons The
center of mass and center of charge of the electron Is
General Relativity a restricted theory? Is
General Relativity a restricted theory? Is
General Relativity a v/c > 0 limit of a Finsler geometry? Is
General Relativity a simplified theory? The
center of mass and center of charge of the electron Is
General Relativity a simpler theory? The mechanism of tunneling and formation of bound pairs of electrons (pdf) A lacking term in the proton spin (pdf) Measuring the internal clock of the electron On the kinematics of the centre of charge of a spinning particle Kinematical
formalism of elementary particles (pdf) Kinematical
formalism of elementary spinning particles (pdf) An
interaction Lagrangian for two spin 1/2 elementary Dirac particles (pdf) Kinematical
theory of spinning particles: The interaction Lagrangian for two spin
1/2 elementary Dirac particles(pdf) The
spacetime symmetry group of a spin 1/2 elementary particle Kinematical
formalism of elementary spinning particles The
dynamical equation of the spinning electron Classical
elementary particles, spin, zitterbewegung and all that Spacetime
structure of classical and quantum mechanical spin Are
the electron spin and magnetic moment parallel or antiparallel vectors (pdf) Generalized
Lagrangians and spinning particles A
pure kinematical explanation of the gyromagnetic ratio g=2 of leptons
and charged bosons Is
there a classical spin contribution to the tunnel effect? Quantization
of generalized spinning particles. New derivation of Dirac’s equation
Classical
relativistic spinning particles Classical
particle systems: I Galilei free particle 

BOOKS  
