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D=5 M-theory radion supermultiplet dynamics

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Title: D=5 M-theory radion supermultiplet dynamics
Authors: Lehners, JL
Stelle, KS
Item Type: Journal Article
Abstract: We show how the bosonic sector of the radion supermultiplet plus d = 4, N = 1 supergravity emerge from a consistent braneworld Kaluza-Klein reduction of D = 5 M– theory. The radion and its associated pseudoscalar form an SL(2, R)/U(1) nonlinear sigma model. This braneworld system admits its own brane solution in the form of a 2-supercharge supersymmetric string. Requiring this to be free of singularities leads to an SL(2,Z) identification of the sigma model target space. The resulting radion mode has a minimum length; we suggest that this could be used to avoid the occurrence of singularities in brane-brane collisions. We discuss possible supersymmetric potentials for the radion supermultiplet and their relation to cosmological models such as the cyclic universe or hybrid inflation.
Issue Date: 23-Jun-2003
Date of Acceptance: 28-Mar-2003
URI: http://hdl.handle.net/10044/1/78837
DOI: 10.1016/S0550-3213(03)00265-7
ISSN: 0550-3213
Publisher: Elsevier
Start Page: 273
End Page: 288
Journal / Book Title: Nuclear Physics B
Volume: 661
Issue: 1-2
Copyright Statement: © 2003 Elsevier Ltd. All rights reserved. This manuscript is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Licence http://creativecommons.org/licenses/by-nc-nd/4.0/
Keywords: Science & Technology
Physical Sciences
Physics, Particles & Fields
Physics
HETEROTIC M-THEORY
MEMBRANE INSTANTONS
STRING THEORY
BRANE
SUPERPOTENTIALS
SUPERGRAVITY
DIMENSIONS
Science & Technology
Physical Sciences
Physics, Particles & Fields
Physics
HETEROTIC M-THEORY
MEMBRANE INSTANTONS
STRING THEORY
BRANE
SUPERPOTENTIALS
SUPERGRAVITY
DIMENSIONS
hep-th
hep-th
astro-ph
0105 Mathematical Physics
0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
0206 Quantum Physics
Nuclear & Particles Physics
Publication Status: Published
Online Publication Date: 2003-04-23
Appears in Collections:Physics
Theoretical Physics