论文标题

自发的peccei-quinn对称性破裂使无菌中微子,斧头和$χ$ boson成为暗物质颗粒的候选者

Spontaneous Peccei-Quinn symmetry breaking renders sterile neutrino, axion and $χ$boson to be candidates for dark matter particles

论文作者

Xue, She-Sheng

论文摘要

我们研究了无菌右中微子部门的Peccei-Quinn(PQ)对称性,以及标准模型的仪表对称性。由于四边形的相互作用,这些对称性在Electroweak量表上的自发断裂会产生顶级夸克dirac质量和无菌 - 中性群落质量。顶级夸克频道产生了巨大的希格斯,$ w^\ pm $和$ z^0 $ bosons。无菌中微子通道产生最重的无菌中微子主要质量,无菌Nambu-goldstone轴(或Maparon)和大量的标量$χ$ boson。四边形操作员有效地诱导其微小的耦合到SM颗粒。我们表明,无菌QCD轴是强大CP问题的PQ解决方案。最轻,最重的无菌中微子($ m_n^e \ sim 10^2 $ keV和$ m_n^τ\ sim 10^2 $ gev),无菌QCD轴($ m_a <10^{ - 8} $ g_} $χ$ boson($m_χ\ sim 10^2 $ gev)可以是暗物质粒子的候选者,对于它们的微小耦合的约束以及从$ W $ -BOSON衰减宽度,Xenon1T和Precision-Precision-flocision-fincerision-nloctrenture-Contruction-Continture-Contrescture-contenture-nircanters实验中推断出的长寿命。与SM颗粒的轴轴和$χ$玻色子耦合低于当前的实验室实验和天体物理观测值所达到的值,直接或间接检测到暗物质颗粒。

We study the Peccei-Quinn (PQ) symmetry of the sterile right-handed neutrino sector and the gauge symmetries of the Standard Model. Due to four-fermion interactions, spontaneous breaking of these symmetries at the electroweak scale generates top-quark Dirac mass and sterile-neutrino Majorana mass. The top quark channel yields massive Higgs, $W^\pm$ and $Z^0$ bosons. The sterile neutrino channel yields the heaviest sterile neutrino Majorana mass, sterile Nambu-Goldstone axion (or majoron) and massive scalar $χ$boson. Four-fermion operators effectively induce their tiny couplings to SM particles. We show that a sterile QCD axion is the PQ solution to the strong CP problem. The lightest and heaviest sterile neutrinos ($m_N^e\sim 10^2$ keV and $m_N^τ\sim 10^2$ GeV), a sterile QCD axion ($m_a< 10^{-8}$ eV, $g_{aγ}< 10^{-13} {\rm GeV}^{-1}$) and a Higgs-like $χ$boson ($m_χ\sim 10^2$ GeV) can be dark matter particle candidates, for the constraints of their tiny couplings and long lifetimes inferred from the $W$-boson decay width, Xenon1T and precision fine-structure-constant experiments. The axion and $χ$boson couplings to SM particles are below the values reached by current laboratory experiments and astrophysical observations for directly or indirectly detecting dark matter particles.

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