标题： 重力波的规范重子数和轻子数特征 显示英文标题

标题： Gravitational Wave Signatures of Gauged Baryon and Lepton Number

摘要： 我们证明，在高能尺度上被破坏的新规范对称性理论中会出现新型的引力波特征。 具体来说，我们关注具有规范重子数和轻子数的模型，在这些模型中，中微子质量通过类型I跷跷板机制产生，通过一个重右旋中微子的衰变发生轻子生成，并且其中一个新的重子场是一个良好的暗物质候选者。 根据理论的标量内容，引力波谱包括宇宙弦、域壁和一阶相变的贡献。 我们表明，可能产生来自域壁的特征双峰信号，或者在平坦的宇宙弦背景上的尖锐域壁峰。 这些新特征在未来的实验范围内，例如宇宙探索者、爱因斯坦望远镜、DECIGO、大爆炸观测者和LISA。 显示英文摘要

摘要： We demonstrate that novel types of gravitational wave signatures arise in theories with new gauge symmetries broken at high energy scales. For concreteness, we focus on models with gauged baryon number and lepton number, in which neutrino masses are generated via the type I seesaw mechanism, leptogenesis occurs through the decay of a heavy right-handed neutrino, and one of the new baryonic fields is a good dark matter candidate. Depending on the scalar content of the theory, the gravitational wave spectrum consists of contributions from cosmic strings, domain walls, and first order phase transitions. We show that a characteristic double-peaked signal from domain walls or a sharp domain wall peak over a flat cosmic string background may be generated. Those new signatures are within the reach of future experiments, such as Cosmic Explorer, Einstein Telescope, DECIGO, Big Bang Observer, and LISA.