| DATE: |
2010-06-03 13:00 - 15:00 |
| PLACE: |
Kenkyu Honkan 1F Meeting Room 1 |
| TITLE: |
Cosmological constant, q-theory, and new TeV-scale physics |
| CONTACT: |
KIMURA Tetsuji, tetsuji AT post.kek.jp |
| SPEAKER: |
Prof. Frans R. Klinkhamer (University of Karlsruhe) |
| LANGUAGE: |
English |
| ABSTRACT: |
It has been suggested previously that the observed cosmological constant ĻĢ corresponds to the remnant vacuum energy density of dynamical processes taking place at a cosmic age set by the mass scale M ∼ Eew of massive particles with electroweak interactions. Here, a simple modification of the nondissipative dynamic equations of q-theory is presented, which produces a remnant vacuum energy density (effective cosmological constant) of the correct order of magnitude. Combined with the observed value of ĻĢ, a first estimate of the required value of the energy scale Eew ranges from 3 to 9 TeV, depending on the number of ultramassive particles and assuming a dissipative coupling constant of order unity. If correct, this estimate implies the existence of new TeV-scale physics beyond the standard model. |
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