论文标题
Electroweak-Flavour和Quark-Lepton统一：家庭非全日制路径
Electroweak-flavour and quark-lepton unification: a family non-universal path
论文作者
论文摘要
我们通过$ su（4）\ times sp（4）_l \ times sp（4）_l \ times sp（4）_r $ gauge组，介绍了标准模型的家庭非宇宙扩展，其中前两个家庭具有Quark-Lepton和Electroweak-Flavour Unification，而Quark-Lepton sp（4）_l \ times sp（4）_r pati salification，而Quark-Lepton的第三个家庭则是Quark-Lepton Unification。通过交错的对称性破坏步骤，该结构为观察到的羊式质量和混合的分层模式提供了自然的解释，同时为涉及前两代人的风味变化过程提供了自然抑制。对称性链中的最后一步是一个非宇宙4321模型，其特征是矢量leptoquark自然耦合到第三代。希格斯行业的稳定性指向TEV周围的4321 $ \ to $ sm对称性量表，在$ b $物理和对撞机过程中，具有有趣的现象学后果，与其他已知的4321个完成的过程不同。
We present a family-non-universal extension of the Standard Model where the the first two families feature both quark-lepton and electroweak-flavour unification, via the $SU(4) \times Sp(4)_L \times Sp(4)_R$ gauge group, whereas quark-lepton unification for the third family is realised à la Pati-Salam. Via staggered symmetry breaking steps, this construction offers a natural explanation for the observed hierarchical pattern of fermion masses and mixings, while providing a natural suppression for flavour-changing processes involving the first two generations. The last-but-one step in the symmetry-breaking chain is a non-universal 4321 model, characterised by a vector leptoquark naturally coupled mainly to the third generation. The stability of the Higgs sector points to a 4321$\to$SM symmetry-breaking scale around the TeV, with interesting phenomenological consequences in $B$ physics and collider processes that differ from those of other known 4321 completions.
