论文标题
绳子派生的$ su（5）$的宇宙学
Cosmology of the string derived flipped $SU(5)$
论文作者
论文摘要
我们研究了绳索衍生的超对称性翻转$ su（5）$模型的宇宙学，在自由词热的杂音构造的背景下，允许在所有弦真真空度上的扰动理论中有效的超级驱动理论中有效的超级效果，所有弦乐模量均具有固定值。该模型具有3代手性家族和Higgs领域，从而导致与低能量数据一致的粒子现象学，这在过去已经进行了广泛的研究。在这里，我们表明，它还可以基于源自弦理论的无尺度有效超级重力以及适当的诱导超电势被弦乐量表的五个力量抑制。它利用了低能频谱中存在的两个量规单程手性超级场地：流动性$ y $，被确定为混合r的中微子的状态的超级球员，以及goldstino $ z $以及表格$ w_i = m_i = m_i z（y-λy^2）$ cal（y-λy^2）$ cal $ w_i = m_i = m_i = m_i^ins $ cal a $ r. o} \ left（1 \右）$参数和$ m_i $通过破坏异常的$ u（1）_a $ gauge对称性，以杂丝弦chiral vacua的特征，以第五顺序生成的通货膨胀量。产生的标量电势会导致Starobinsky型通胀。我们的结果很容易被推广到具有相似属性的大型模型。
We study the cosmology of a string derived supersymmetric flipped $SU(5)$ model in the context of free-fermionic heterotic constructions that allow full calculability of the effective supergravity in perturbation theory around the fermionic vacuum where all string moduli have fixed values. The model has 3 generations of chiral families and a Higgs sector leading to particle phenomenology consistent with low energy data, that has been extensively studied in the past. Here, we show that it can also accommodate a novel successful cosmology, based on the no-scale effective supergravity derived from string theory as well as an appropriate induced superpotential suppressed by five powers of the string scale. It utilises two gauge singlet chiral superfields present in the low energy spectrum: the inflaton $y$, identified as the superpartner of a state mixed with R-handed neutrinos, and the goldstino $z$ with a superpotential of the form $W_I=M_I z(y-λy^2)$ (in supergravity units) where $λ$ is a dimensionless ${\cal O}\left(1\right)$ parameter and $M_I$ the mass scale of inflation generated at 5th order by the breaking of an anomalous $U(1)_A$ gauge symmetry, characteristic of heterotic string chiral vacua. The resulting scalar potential leads to Starobinsky type inflation. Our results can be easily generalised to a large class of models with similar properties.
