Abstract
A dual charged solution carrying both electric and magnetic charge is formulated in SU(2) × U(1) gauge theory without making use of the topological characteristics of Higgs fields. When Dirac quantisation condition is imposed, two consequences follow: (i) Weinberg angle is restricted to the value sin2 θ = 1/2 and (ii) the solution cannot have fractional electric change, but must have integer items the basic electric charge of the theory. The infinity inherent in the theory is removed at the classical level by the use of gravitational effects by obtaining the same solution in the curved space-time. The resultant metric is of Reissner-Nordström form.
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Ramachandran, R., Raval, V.M. Dual charged solution in curved space-time. Pramana - J Phys 9, 507–514 (1977). https://doi.org/10.1007/BF02846256
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DOI: https://doi.org/10.1007/BF02846256