Abstract
A framework for baryogenesis where CP violation lies in a gravitational interaction was presented. It was found that the expansion of the Universe promotes the microscopic CP violation to a dynamical violation of CPT that shifts the relative energies of particles and antiparticles. It was also found that the CP-conserving B-violating interaction in equilibrium create the asymmetry when the B-violating interaction decouples. The results show that a gravitational interaction between the derivative of the Ricci scalar curvature and the baryon-number current dynamically breaks CPT in expanding universe.
Original language | English (US) |
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Article number | 201301 |
Pages (from-to) | 201301-1-201301-4 |
Journal | Physical review letters |
Volume | 93 |
Issue number | 20 |
DOIs | |
State | Published - Nov 12 2004 |
All Science Journal Classification (ASJC) codes
- General Physics and Astronomy