论文标题

异常,CPT和瘦素发生

Anomalies, CPT and Leptogenesis

论文作者

Sarkar, Sarben

论文摘要

除了粒子物理的标准模型之外,我们将物理学的不同难题汇集在一起​​。在我们的模型男生生中,中微子质量,强CP和暗物质难题是相关的。连接这些难题的常见成分是kalb-ramond场,这是封闭字符串理论中引力多重组中的两种形式。 Leptons是我们需要使用Vierbein形式主义将其融入引力自由度的费米。 Kalb-Ramond背景提供的扭转的存在使我们首先建立了一个有效的模型,涉及爱因斯坦 - 卡丹的重力公式,这是一种轨距理论,其中与费米子耦合是通过协证衍生物,其次是与CPT违规的机制。这张图是从紧凑到四个维度后从封闭的骨弦理论获得的低能弦有效作用出现的。可以使用伪级重力轴鉴定四个维度的Kalb-Ramond场。由于存在轴向异常,因此该轴可以将其与Gluon场相结合,并以这种方式可以与强大的CP问题和轴子暗物质建立联系。

We bring together different puzzles in physics beyond the Standard Model of particle physics. Within our model baryogenesis, neutrino mass, strong CP and dark matter puzzles are related. The common ingredient in connecting these puzzles is the Kalb-Ramond field, a two form present in the gravitational multiplet in the theory of closed strings. Leptons are fermions which we need to couple to gravitational degrees of freedom using a vierbein formalism. The presence of torsion provided by a Kalb-Ramond background leads us to firstly an effective model involving the Einstein-Cartan formulation of gravity, a gauge theory, in which coupling to fermions is via a covariant derivative and secondly to a mechanism for CPT violation. This picture emerges from a low energy string effective action obtained from a closed bosonic string theory after compactification to four dimensions. The Kalb-Ramond field in four dimensions can be identified with a pseudoscalar gravitational axion. Because of the presence of an axial anomaly this axion can couple with the gluon field, and in this way allows a connection with the strong CP problem and axionic dark matter.

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