Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
| <mark>Journal publication date</mark> | 11/01/1999 |
|---|---|
| <mark>Journal</mark> | Nuclear Physics B |
| Issue number | 1-2 |
| Volume | 538 |
| Number of pages | 30 |
| Pages (from-to) | 321-350 |
| Publication Status | Published |
| <mark>Original language</mark> | English |
We demonstrate that B-ball decay in the MSSM can naturally solve the puzzle of why the densities of baryons and dark matter in the Universe are similar. This requires that the B-balls survive thermalization and decay below the freeze-out temperature of the neutralino LSP, typically 1-10 GeV, It is shown that this can happen if the baryon asymmetry originates from a squark condensate along the d = 6 u(c)d(c)d(c) D-flat direction of the MSSM scalar potential. For this to work the reheating temperature after inflation must be no greater than 10(3-5) GeV.