Citation

Je. Kim et al., Self-tuning solution of the cosmological constant problem with antisymmetric tensor field, NUCL PHYS B, 613(1-2), 2001, pp. 306-329

Citations number

53

Language

INGLESE

art.tipo

Article

Categorie Soggetti

Physics

Journal title

NUCLEAR PHYSICS B

ISSN journal

0550-3213
→ ACNP

Volume

613

Issue

1-2

Year of publication

2001

Pages

306 - 329

Database

ISI

SICI code

0550-3213(20011008)613:1-2<306:SSOTCC>2.0.ZU;2-E

Abstract

We present a self-tuning solution of the cosmological constant problem with
one extra dimension which is curved with a warp factor. To separate out th
e extra dimension and to have a self-tuning solution, a three index antisym
metric tensor field is introduced with the 1/H-2 term in the Lagrangian. Th
e standard model fields are located at the y = 0 brane. The existence [1] o
f the self-tuning solution (which results without any fine tuning among par
ameters in the Lagrangian) is crucial to obtain a vanishing cosmological co
nstant in a 4D effective theory. The de-Sitter and anti-de-Sitter space sol
utions are possible. The de-Sitter space solutions have horizons. Restricti
ng to the spaces which contain the y = 0 brane, the vanishing cosmological
constant is chosen in the most probable universe. For this interpretation t
o be valid, the existence of the self-tuning solution is crucial in view of
the phase transitions. In this paper, we show explicitly a solution in cas
e the brane tension shifts from one to another value. We also discuss the c
ase with the H-2 term which leads to one-fine-tuning solutions at most. (C)
2001 Published by Elsevier Science B.V.