Twin Pati-Salam theory of flavour with a TeV scale vector leptoquark

被引:14
|
作者
King, Stephen F. [1 ]
机构
[1] Univ Southampton, Dept Phys & Astron, Southampton SO17 1BJ, Hants, England
基金
欧盟地平线“2020”;
关键词
Beyond Standard Model; GUT; Heavy Quark Physics; Quark Masses and SM Parameters; HANDED NEUTRINO DOMINANCE; SOLAR NEUTRINOS; MASSES; SYMMETRY; NUMBER; ANGLES;
D O I
10.1007/JHEP11(2021)161
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
We propose a twin Pati-Salam (PS) theory of flavour broken to the G(4321) gauge group at high energies, then to the Standard Model at low energies, yielding a TeV scale vector leptoquark U-1(mu)(3,1, 2/3) which has been suggested to address the lepton universality anomalies R-K(*) and R-D(*) in B decays. Quark and lepton masses are mediated by vectorlike fermions, with personal Higgs doublets for the second and third families, which may be replaced by a two Higgs doublet model (2HDM). The twin PS theory of flavour successfully accounts for all quark and lepton (including neutrino) masses and mixings, and predicts a dominant coupling of U-1(mu)(3, 1, 2/3) to the third family left-handed doublets. However the predicted mass matrices, assuming natural values of the parameters, are not consistent with the single vector leptoquark solution to the R-D( * ) anomaly, given its current value.
引用
收藏
页数:39
相关论文
共 33 条