626 research outputs found
Quantization of bosonic fields with two mass and spin states
We investigate bosonic fields possessing two mass and spin states. The
density matrix in the first order formalism is obtained. The quantization of
fields in the first order formulation is performed and propagators are found.Comment: 9 page
Vacuum Birefringence Caused by Arbitrary Spin Particles
We study the propagation of a linearly polarized laser beam in the external
transverse magnetic field taking into consideration the vacuum polarization by
arbitrary spin particles. Induced ellipticity of the beam are evaluated using
the effective Lagrangian. With the help of the PVLAS experimental data, we
obtain bounds on masses of charged higher spin particles contributed to
ellipticity.Comment: 5 pages, substantial changes, shortened version matches new PVLAS
data, accepted in Mod.Phys.Lett.
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