General considerations of the cosmological constant and the stabilization of moduli in the brane-world picture

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Abstract

We argue that the brane-world picture with matter-fields confined to 4-d domain walls and with gravitational interactions across the bulk disallows adding an arbitrary constant to the low-energy, 4-d effective theory - which finesses the usual cosmological constant problem. The analysis also points to difficulties in stabilizing moduli fields; as an alternative, we suggest scenarios in which the moduli motion is heavily damped by various cosmological mechanisms and varying ultra-slowly with time.

Original languageEnglish (US)
Pages (from-to)41-47
Number of pages7
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume462
Issue number1-2
DOIs
StatePublished - Jan 1 1999

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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