Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2001-12-05
Phys.Rev. D65 (2002) 103511
Physics
High Energy Physics
High Energy Physics - Phenomenology
7pages,1figure
Scientific paper
10.1103/PhysRevD.65.103511
We propose in this paper a scenario of spontaneous baryogenesis in cosmological models of Quintessence by introducing a derivative coupling of the Quintessence scalar $Q$ to the baryon current $J_B^{\mu}$ or the current of the baryon number minus lepton number $J_{B-L}^{\mu}$. We find that with a dimension-5 operator ${\partial_\mu Q} J_{B-L}^{\mu}$ suppressed by the Planck mass $M_{pl}$ or the Grand Unification Scale $M_{GUT}$, baryon number asymmetry $n_B/s \sim 10^{-10}$ can be naturally explained {\it via} leptogenesis. We study also the isocurvature baryon number fluctuation generated in our model.
Feng Bo
Li Mingzhe
Wang Xiulian
Zhang Xinmin
No associations
LandOfFree
Quintessence and Spontaneous Leptogenesis does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Quintessence and Spontaneous Leptogenesis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quintessence and Spontaneous Leptogenesis will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-174316