Many years ago, atoms were considered as unbreakable. But now it is possible to split it. Similarly, can we split so called fundamental particles like election also?
Dear Dr Jayaram as. , I am not too sure of this but you can consider this from phys.org: Electrons may be seen as small magnets that also carry a negative electrical charge. ... However, in certain materials where the electrons are constrained in a quasi one-dimensional world, they appear to split into a magnet and an electrical charge, which can move freely and independently of each other.
We generally think of electrons as fundamental building blocks of atoms, elementary subatomic particles with no smaller components to speak of. But according to Swiss and German researchers reporting in Nature , we are wrong to think so. For the first time, the researchers have recorded an observation of an electron splitting into two different quasi-particles, each taking different characteristics of the original electron with it. Using samples of the copper-oxide compound Sr2CuO3, the researchers lifted some of the electrons belonging to the copper atoms out of their orbits and placed them into higher orbits by manipulating them with X-rays. Upon placing them in these higher--and higher-velocity--orbits, the electrons split into two parts, one called a spinon that carried the electron's spin with it, and another called an obitron that carried the electron's orbital momentum with it. ( Clay Dillow , Popular Science Site, 2012 )
Up to the energies probed by the LHC the answer is No.
This is how it's done:
https://cds.cern.ch/record/2232259/files/ATL-PHYS-PROC-2016-219.pdf
The electron is considered as a fundamental particle: one of the leptons in the Standard Model. Fundamental particle means that it cannot have internal constituents and therefore it cannot be formed by other particles. If the electron was a composite particle, then it would have a tiny but nonzero electric dipole moment, for example the neutron has an small electric dipole which can be measured. It never was measured such dipole in the electrons. A good paper for following these kind of measurements is
http://science.sciencemag.org/content/343/6168/269
On the other hand, the electron in Condensed Matter is not a particle bu a quasiparticle and most if we consider low dimensional systems. Tomonaga, Luttinger and many others showed that the spin-charge separation for electrons is got in 1-D systems as SrCuO2. But these is due to have fractional electronic phases where the electrons are not at all fundamental fermion particles.
https://www.nature.com/articles/nphys316
At the moment - we can not. However, it does it mean that a description of the electron state may be by some components with long weak interaction range, so that the resulting electron weak interaction is short (such as the Wan der Wald effect) - (we do observe it as far as I know).
electron is elementary particle ,thus not composed of other particles, for that the answer is no.
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