Leptogenesis from the bottom-up
نویسندگان
چکیده
In this work we analyze the relevance of the different low energy phases for the CP asymmetry of the Universe. To this end, we develop a parametrization of the see-saw mechanism in terms of low energy data that will allow us to study leptogenesis from a bottom-up perspective. We find that the relevant phases for leptogenesis depend on the particular scenario, and we classify the different possibilities in connection to lepton flavour violation. We find that the phase that would be measured at the neutrino factory is relevant for leptogenesis over much of the parameter space where this phase can be measured.
منابع مشابه
A Comparative Study of Effect of Bottom-up and Top-down Instructional Approaches on EFL Learners’ Vocabulary Recall and Retention
This quasi-experimental study investigated the effect of bottom-up and top-down instructional approaches on English as a foreign language (EFL) vocabulary recall and retention. To this end, 44 high school students from two intact classes were assigned to bottom-up (n = 21) and top-down (n = 23) groups. The participants were exposed to 20 hours of explicit vocabulary instruction during 10 weeks ...
متن کاملThe effect of bottom-up and top-down auditory program training on the development of children's auditory processing skills
Although there have been several previous investigations on the role of auditory training for the development of auditory processing skills, it still remains unknown whether children with auditory processing difficulties can get improved auditory skills after exposure to a multi-modal training experience comprising both visual and tactile stimuli. The present study, therefore, attempted to use ...
متن کاملThe effect of bottom-up and top-down auditory program training on the development of children's auditory processing skills
Although there have been several previous investigations on the role of auditory training for the development of auditory processing skills, it still remains unknown whether children with auditory processing difficulties can get improved auditory skills after exposure to a multi-modal training experience comprising both visual and tactile stimuli. The present study, therefore, attempted to use ...
متن کاملEffect of Metacognitive Strategy Training and Perfectionism on Listening Comprehension Sub-Processes
The present study aimed to examine any possible relevance of perfectionism as a personal trait variable, in moderating the effectiveness of meta-cognitive instruction on bottom-up and top-down sub-processes of listening comprehension with a sample of EFL learners in Iranian context. To this end, 94 female EFL learners were selected from among 136 EFL learners at Andisheh Language Institute in M...
متن کاملFlavoured Soft Leptogenesis
We study the impact of flavour in “soft leptogenesis” (leptogenesis induced by soft supersymmetry breaking terms). We address the question of how flavour effects can affect the region of parameters in which successful soft leptogenesis induced by CP violation in the right-handed sneutrino mixing is possible. We find that for decays which occur in the intermediate to strong washout regimes for a...
متن کامل