We propose a mechanism called axiogenesis where the cosmological excess of baryons over antibaryons is generated from the rotation of the QCD axion. The Peccei-Quinn (PQ) symmetry may be explicitly broken in the early universe, inducing the rotation of a PQ charged scalar field. The rotation corresponds to the asymmetry of the PQ charge, which is converted into the baryon asymmetry via QCD and electroweak sphaleron transitions. In the concrete model we explore, interesting phenomenology arises due to the prediction of a small decay constant and the connections with new physics at the LHC and future colliders and with axion dark matter.

中文翻译：

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轴生

我们提出了一种称为“轴突发生”的机制，该机制是由于QCD轴突的旋转而产生的宇宙学上的重子超过抗重子。Peccei-Quinn（PQ）对称性可能在早期宇宙中被明确打破，从而引起PQ带电标量场的旋转。旋转对应于PQ电荷的不对称性，它通过QCD和电弱的sphaleron转换转换为重子不对称性。在我们探索的具体模型中，有趣的现象学是由于预测了一个小的衰减常数以及与大型强子对撞机和未来对撞机的新物理学以及与轴​​突暗物质的联系而产生的。