arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1902.06758hep-ph
收藏

没有新粒子的自然

Naturalness without new particles

Anson Hook

摘要:

我们证明了解决自然性问题的物理学不需要采取新粒子的形式,有时可以表现为高维算子。作为一个原则的证明,我们提出了一个简单的模型,新粒子的规模是参数分离的估计通过自然参数应用到自四次耦合。在本例中,新粒子出现在远高于尺度$m/\sqrtλ$的地方,其中$m$是粒子的质量,$λ$是它的自四次耦合。负责解决自然性问题的移位对称性涉及高维算子而不是新粒子。

英文摘要:

We demonstrate that the physics which resolves naturalness problems need not take the form of new particles and can sometimes manifest itself as higher dimensional operators. As a proof of principle, we present a simple model where the scale of new particles is parametrically separated from that estimated via naturalness arguments applied to self-quartic couplings. In this example, new particles appear far above the scale $m/\sqrtλ$, where $m$ is the mass of the particle and $λ$ is its self-quartic coupling. The shift symmetry responsible for resolving the naturalness problem involves higher dimensional operators rather than new particles.

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。

↑