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arXiv 1111.6411hep-phastro-ph.COhep-th
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质量曲率模量为O($10-10^2$ TeV)的膨胀曲率情况下的Affleck-Dine重子生成

Affleck-Dine baryogenesis in inflating curvaton scenario with O($10-10^2$TeV) mass moduli curvaton

Kazuyuki Furuuchi, Chia-Min Lin

摘要:

本文研究了在膨胀曲率情况下的阿弗莱克-戴恩重子生成,其中曲率是一个质量为O($10-10^2$ TeV)的模场.一个具有这样质量的模场被认为是不存在Polonyi问题的,而且它的衰变产物可以解释目前的冷暗物质丰度。在我们的方案中,它进一步解释了原始曲率扰动和现在的重子密度。目前的观测约束的重子等曲率扰动,这严重限制了AD重子与原来的振荡模曲率的情况下,实际上可以忽略不计的约束,如果我们用膨胀曲率取代振荡曲率。

英文摘要:

We study the Affleck-Dine (AD) baryogenesis in the inflating curvaton scenario, when the curvaton is a moduli field with O($10-10^2$TeV) mass. A moduli field with such mass is known to be free from the Polonyi problem, and furthermore its decay products can explain the present cold dark matter abundance. In our scenario, it further explains the primordial curvature perturbation and the present baryon density all together. The current observational bound on the baryon isocurvature perturbation, which severely constrains the AD baryogenesis with the original oscillating moduli curvaton scenario, is shown to put practically negligible constraint if we replace the oscillating curvaton with the inflating curvaton.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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