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We study the cosmology of the Randall-Sundrum brane-world where the Einstein-Hilbert action is modified by curvature correction terms: a four-dimensional scalar curvature from induced gravity on the brane, and a five-dimensional…

High Energy Physics - Theory · Physics 2009-11-10 G. Kofinas , R. Maartens , E. Papantonopoulos

It is shown that a localized four-dimensional Einstein term, induced by quantum corrections, modifies significantly the law of gravity in a Randall-Sundrum brane world. In particular, the short-distance behavior of gravity changes from…

High Energy Physics - Theory · Physics 2010-02-03 E. Kiritsis , N. Tetradis , T. N. Tomaras

We consider a generalization of the Randall-Sundrum single brane-world scenario (RS2). More precisely, the generalization is described through curvature corrections, corresponding to a Gauss-Bonnet term in the bulk and a Hilbert-Einstein…

General Relativity and Quantum Cosmology · Physics 2013-05-30 Mariam Bouhmadi-Lopez , Pisin Chen , Yen-Wei Liu

We study the curvaton dynamics in brane-world cosmologies. Assuming that the inflaton field survives without decay after the end of inflation, we apply the curvaton reheating mechanism to Randall-Sundrum and to its curvature corrections:…

General Relativity and Quantum Cosmology · Physics 2009-11-11 Eleftherios Papantonopoulos , Vassilios Zamarias

We consider braneworld scenarios including the leading correction to the Einstein-Hilbert action suggested by superstring theory, the Gauss-Bonnet term. We obtain and study the complete set of equations governing the cosmological dynamics.…

High Energy Physics - Theory · Physics 2009-11-07 Cristiano Germani , Carlos F. Sopuerta

The brane-world scenario provides an intriguing possibility to explore the phenomenological cosmology implied by string/M theory. In this paper, we consider a modified Randall-Sundrum single brane model with two natural generalizations: a…

High Energy Physics - Theory · Physics 2014-05-06 Mariam Bouhmadi-Lopez , Yen-Wei Liu , Keisuke Izumi , Pisin Chen

A general analysis of the induced brane dynamics is performed when the intrinsic curvature term is included in the action. Such a term is known to cause dramatic changes and is generically induced by quantum corrections coming from the bulk…

High Energy Physics - Theory · Physics 2010-05-28 Georgios Kofinas

We explore the cosmological implications provided by the geodetic brane gravity action corrected by an extrinsic curvature brane term, describing a codimension-1 brane embedded in a 5D fixed Minkowski spacetime. In the geodetic brane…

General Relativity and Quantum Cosmology · Physics 2012-08-23 Rubén Cordero , Miguel Cruz , Alberto Molgado , Efraín Rojas

We modify Randall-Sundrum model of brane-world (with two branes) by adding the scalar curvature squared term in five dimensions. We find that it does not destabilize Randall-Sundrum solution to the hierarchy problem of the Standard Model in…

High Energy Physics - Theory · Physics 2016-11-09 Hiroshi Nakada , Sergei V. Ketov

We consider a single 3-brane sitting in between two different five dimensional spacetimes. On each side of the brane, the bulk is a solution to Gauss-Bonnet gravity, although the bare cosmological constant, funda mental Planck scale, and…

High Energy Physics - Theory · Physics 2009-11-10 Antonio Padilla

In this paper we study brane-world scenarios with a bulk scalar field, using a covariant formalism to obtain a 4D Einstein equation via projection onto the brane. We discuss, in detail, the effects of the bulk on the brane and how the…

High Energy Physics - Theory · Physics 2008-11-26 A. Mennim , R. A. Battye

A treatment of linearized gravity with the Einstein-Gauss-Bonnet interaction terms in $D\geq$ 5 is given in the Randall-Sundrum brane background. This Letter has outlined some interesting features of the brane world gravity and Newtonian…

High Energy Physics - Theory · Physics 2009-11-07 Ishwaree P. Neupane

The evolution of the cosmological perturbations is studied in the context of the Randall-Sundrum brane world scenario, in which our universe is realized on a three-brane in the five dimensional Anti-de Sitter(AdS) spacetime. We develop a…

High Energy Physics - Theory · Physics 2009-10-31 Kazuya Koyama , Jiro Soda

We study the effects of including brane localized curvature terms in the Randall-Sundrum (RS) model of the hierarchy. This leads to the existence of brane localized kinetic terms for the graviton. Such terms can be induced by brane and bulk…

High Energy Physics - Phenomenology · Physics 2009-11-10 H. Davoudiasl , J. L. Hewett , T. G. Rizzo

In the Randall-Sundrum (RS) brane-world model a singular delta-function source is matched by the second derivative of the warp factor. So one should take possible curvature corrections in the effective action of the RS models in a…

High Energy Physics - Theory · Physics 2014-11-18 Y. M. Cho , Ishwaree P. Neupane

We consider the Randall-Sundrum brane-world model with bulk-brane energy transfer where the Einstein-Hilbert action is modified by curvature correction terms: a four-dimensional scalar curvature from induced gravity on the brane, and a…

Astrophysics · Physics 2008-11-26 Shao-Feng Wu , Auttakit Chatrabhuti , Guo-Hong Yang , Peng-Ming Zhang

The effective four-dimensional, linearised gravity of a Randall-Sundrum-like brane world model is analysed. The model includes higher order curvature terms (such as the Gauss-Bonnet term) and a scalar field. The resulting brane worlds can…

High Energy Physics - Theory · Physics 2007-05-23 Stephen C. Davis

This paper presents some cosmological consequences of the five dimensional, two brane Randall-Sundrum brane scenario. The radius of the compact extra dimension is taken to be time dependent. It is shown that the cosmology consistent with…

High Energy Physics - Theory · Physics 2007-05-23 H. K. Jassal

The effects of higher order gravity terms on a dilatonic brane world model are discussed. For a single positive tension flat 3-brane, and one infinite extra dimension, we present a particular class of solutions with finite 4-dimensional…

High Energy Physics - Theory · Physics 2007-05-23 Stephen C. Davis

There are many interesting issues in the brane world with a large/warped extra dimension. We focus on the cosmological aspects. We review the cosmological solutions of the brane world and how the conventional four-dimensional cosmology is…

High Energy Physics - Phenomenology · Physics 2007-05-23 Hang Bae Kim
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