Initial condition for the minimal isocurvature scenario.
Initial condition for the minimal isocurvature scenario.
复制标题
最小等曲率场景的初始条件。
DOI:
10.1103/physrevd.44.970
复制
发表时间:
1991
期刊:
影响因子:
--
通讯作者:
Yokoyama
中科院分区:
文献类型:
--
作者:
Sasaki;Yokoyama
We derive a proper expression for the power spectrum of baryon-number fluctuations arising from decay of a heavy Majorana lepton with space-dependent {ital CP} violation due to a spatially varying Majoron field. The spectrum is explicitly calculated in a power-law inflation model and found to be almost scale invariant on small scales and white noise on large scales. Under reasonable assumptions, we present a natural particle-physics model which provides an appropriate initial condition for the minimal isocurvature scenario of large-scale structure formation.