FIZIKA B 19 (2010) 3, 125134
CLASSICAL ELECTRON MODEL WITH NONSTATIC CONFORMAL SYMMETRY
I. RADINSCHI^{a}, F. RAHAMAN^{b}, M. KALAM^{c} and K. CHAKRABORTY^{d}
^{a}Department of Physics, "Gh. Asachi" Technical University, Iasi, 700050, Romania
^{b}Department of Mathematics, Jadavpur University, Kolkata700 032, India
^{c}Department of Physics, Aliah University, SectorV, Salt Lake, Kolkata  700091, India
^{d}Department of Physics, Govt. Training College, Hooghly  712103, West Bengal, India
Electronic addresses: radinschi@yahoo.com,
farook_rahaman@yahoo.com,
mehedikalam@yahoo.co.in,
kchakraborty28@yahoo.com
Received 21 December 2009; Revised manuscript received 9 October 2010
Accepted 15 December 2010 Online 24 January 2011
Lorentz proposed a classical model of electron in which it was
assumed the electron to have only `electromagnetic mass'. We modelled
electron as a charged anisotropic perfect fluid sphere admitting
nonstatic conformal symmetry. We find that the pressure
and density fail to be regular at the origin, but the effective
gravitational mass is regular everywhere and vanishes in the
limit r→0, i.e. it does not have the
problem of singularity. Further, we have matched the interior metric
with the exterior (ReissnerNordström) metric and determine the
values of the parameters k and r_{0} (occurring in the
solutions) as functions of mass, charge and radius of the
sphericallysymmetric charged object, i.e. electron.
PACS numbers: 04.20.q, 02.40.k, 04.20.Jb
UDC 539.124
Keywords: Electron, nonstatic conformal symmetry, EinsteinMaxwell equations
