General self-tuning solutions and no-go theorem

Journal Article · Fri Mar 01 00:00:00 EST 2013 · Journal of Cosmology and Astroparticle Physics

DOI:https://doi.org/10.1088/1475-7516/2013/03/022· OSTI ID:22282960

Förste, Stefan ^[1]; Kim, Jihn E. ^[2]

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1. Bethe Center for Theoretical Physics and Physikalisches Institut der Universität Bonn, Nussallee 12, 53115 Bonn (Germany)
2. Department of Physics, Kyung Hee University, Seoul 130-701 (Korea, Republic of)

We consider brane world models with one extra dimension. In the bulk there is in addition to gravity a three form gauge potential or equivalently a scalar (by generalisation of electric magnetic duality). We find classical solutions for which the 4d effective cosmological constant is adjusted by choice of integration constants. No go theorems for such self-tuning mechanism are circumvented by unorthodox Lagrangians for the three form respectively the scalar. It is argued that the corresponding effective 4d theory always includes tachyonic Kaluza-Klein excitations or ghosts. Known no go theorems are extended to a general class of models with unorthodox Lagrangians.

• OSTI ID: 22282960
• Journal Information: Journal of Cosmology and Astroparticle Physics, Vol. 2013, Issue 03; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1475-7516
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
BRANES
COSMOLOGICAL CONSTANT
COSMOLOGY
DUALITY
EXCITATION
GRAVITATION
KALUZA-KLEIN THEORY
LAGRANGIAN FUNCTION
MATHEMATICAL SOLUTIONS
POTENTIALS
SCALARS
TACHYONS