Regular Article - Theoretical Physics
The stability and gravitational Newtonian limit of a modified Randall–Sundrum model
Department of Physics, School of Sciences, Tarbiat Modares University, P.O. Box 14155-4838, Tehran, Iran
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Accepted: 29 December 2015
Published online: 19 January 2016
For a modified Randall–Sundrum model (Jones et al. in Phys. Rev. D 88:025048, 2013), the graviton equations are derived and the mass spectrum found. The latter includes a massless graviton and a continuum mass with a gap. There is no negative mass-squared in the spectrum, so the model is stable. The gravitational Newtonian limit is obtained with an exponentially suppressed modification from the extra dimension.
© The Author(s), 2016