Dereli, TekinŞenikoğlu, Yorgo2024-07-122024-07-122022Dereli, T. and Şenikoğlu, Y. (2022). Dark range of ? in brans-dicke gravity. Journal of Physics: Conference Series, 2191(1), s.1-8.1742-658810.1088/1742-6596/2191/1/0120102-s2.0-85124945540https://doi.prg/10.1088/1742-6596/2191/1/012010https://hdl.handle.net/20.500.12415/3259The variational field equations of Brans-Dicke scalar-tensor theory of gravitation that is coupled to a mass-varying sterile neutrino field are presented in Riemannian and non-Riemannian setting in the language of exterior differential forms over four-dimensional spacetime. In a gravitational plane wave geometry in Rosen coordinates, with the scalar field set equal to a constant, the field equations admit ghost neutrino solutions. These correspond to Majorana spinor configurations for which the total neutrino stress-energy-momentum tensor vanishes. We show here that in the absence of a sterile neutrino in the gravitational wave geometry, there are scalar field configurations for which the total scalar field stress-energy-momentum tensor vanishes for negative values of the Brans-Dicke parameter ?3/2 < ? < 0.eninfo:eu-repo/semantics/openAccessBrans-DickeTheoryTensorArticle81N/A12191