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arXiv 2110.05487hep-ph
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R-宇称破坏公理生成

R-Parity Violation Axiogenesis

Raymond T. Co, Keisuke Harigaya, Zachary Johnson, Aaron Pierce

摘要:

我们证明了在超对称$R$ -宇称破坏耦合的$B-L$破坏的辅助下,QCD轴子场的旋转可以产生所观测到的重子丰度。强的sphaleron过程将轴子场的角动量转换成夸克手征不对称,而$R$ -宇称违反耦合将其转换成宇宙的重子不对称。我们专注于无量纲的情况下,$R$奇偶违反耦合与纹理的大统一理论和评论更一般的情况。超对称粒子的轴子衰变常数和质量谱受到大爆炸核合成、质子衰变的$R$ -宇称破坏和Peccei-Quinn对称性破缺场的成功热化的约束。轴子暗物质可能是由轴子旋转产生的,对于$10^{10}$ GeV以下的轴子衰减常数,通过动力学失准机制,或通过传统的失准机制,对于$10^{11-12}$ GeV。可行的参数区域可以通过质子衰变和轴子搜索来探测。这种情况也可能与对撞机实验有关,包括寻找长寿粒子和观测引力波。

英文摘要:

We show that the rotation of the QCD axion field, aided by $B-L$ violation from supersymmetric $R$-parity violating couplings, can yield the observed baryon abundance. Strong sphaleron processes transfer the angular momentum of the axion field into a quark chiral asymmetry, which $R$-parity violating couplings convert to the baryon asymmetry of the Universe. We focus on the case of dimensionless $R$-parity violating couplings with textures motivated by grand unified theories and comment on more general scenarios. The axion decay constant and mass spectrum of supersymmetric particles are constrained by Big Bang nucleosynthesis, proton decay from the $R$-parity violation, and successful thermalization of the Peccei-Quinn symmetry breaking field. Axion dark matter may be produced by the axion rotation via the kinetic misalignment mechanism for axion decay constants below $10^{10}$ GeV, or by the conventional misalignment mechanism for $10^{11-12}$ GeV. The viable parameter region can be probed by proton decay and axion searches. This scenario may also have connections with collider experiments, including searches for long-lived particles, and observations of gravitational waves.

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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