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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/12410
Production of spin-1/2 particles in inhomogeneous cosmologies
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The production of spin-½ particles by small gravitational inhomogeneities is discussed by using a perturbative approach based on the evaluation of the scattering matrix. We compute the production of massive and massless particles by linear gravitational inhomogeneities in flat spacetime and the production of massless particles in an expanding universe described by the spatially flat Friedmann-Robertson-Walker models with small inhomogeneities. As in the case of scalar particles the total pair-creation probability is given in terms of geometric invariants of the spacetime.
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CAMPOS, Antonio and VERDAGUER OMS, Enric. Production of spin-1/2 particles in inhomogeneous cosmologies. Physical Review D. 1992. Vol. 45, num. 12, pags. 4428-4438. ISSN 0556-2821. [consulted: 9 of August of 2026]. Available at: https://hdl.handle.net/2445/12410