论文标题
超对称模型中的高质量斧头
High Quality Axion in Supersymmetric Models
论文作者
论文摘要
在这项工作中，我们讨论了超出标准模型（BSM）以外的物理动机的对称性的使用如何保证高质量的斧头。我们避免引入对称性，仅用于解决轴突质量问题。相反，我们依赖于BSM中其他问题的良好动机：超对称性，$ u（1）_ {\ rm b-l} $和离散的R-Mystry $ z__ {nr} $。我们表明，这些相互作用也可以保证轴突的高质量，即使是重力固定质量和轴衰变的常数，均高达$ M_ {3/2} = \ Mathcal {O}（10）{\ rm tev} $和$ f_ {a} = \ {a} = \ nathcal {o} {o}（o}（10^{15}）$ gev这项工作的要点取决于这样的观察，即MSSM对混合异常的贡献$ z_ {nr} - [su（2）_ {l}]^{2} $和$ z_ {nr} - [su（su（3）_ {c}] _ {c}]^{2} $ n y ne une deulte $ z $ nr}引入新物质领域。我们进行了介绍，以实现零混合异常，从逻辑上讲，它支持所需的足够大的$ n $对于$ z_ {nr} $。该机制有效地使$ z_ {nr} $等于$ u（1）_ {r} $，因此为轴承质量问题提供了逻辑上完整的解决方案。
In this work, we discuss how the use of the symmetries well motivated in physics beyond the Standard model (BSM) can guarantee the high quality axions. We avoid to introduce symmetries only useful for addressing the axion quality problem. Rather, we rely on symmetries well motivated by other issues in BSM: supersymmetry, $U(1)_{\rm B-L}$ and the discrete R-symmetry $Z_{NR}$. We show that the interplay among these guarantees the high quality of the axion even for the gravitino mass and axion decay constant as large as $m_{3/2}=\mathcal{O}(10){\rm TeV}$ and $F_{a}=\mathcal{O}(10^{15}){\rm GeV}$ respectively. The key point of this work relies on the observation that the MSSM contribution to the mixed anomalies $Z_{NR}-[SU(2)_{L}]^{2}$ and $Z_{NR}-[SU(3)_{c}]^{2}$ is not enough for gauging $Z_{NR}$ for $N\neq6$, which necessitates the introduction of new matter fields. We make the introduction to achieve zero mixed anomalies, which logically supports a desired large enough $N$ for $Z_{NR}$. This mechanism effectively makes $Z_{NR}$ equal to $U(1)_{R}$ and thus offers a logically complete solution to the axion quality problem.
