Creating the fermion mass hierarchies with multiple Higgs bosons

被引:17
作者
Bauer, Martin [1 ]
Carena, Marcela [2 ,3 ,4 ]
Gemmler, Katrin [2 ,5 ]
机构
[1] Heidelberg Univ, Inst Theoret Phys, Philosophenweg 16, D-69120 Heidelberg, Germany
[2] Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA
[3] Univ Chicago, Enrico Fermi Inst, 5640 S Ellis Ave, Chicago, IL 60637 USA
[4] Univ Chicago, Kavli Inst Cosmol Phys, Chicago, IL 60637 USA
[5] Tech Univ Munich, TUM Inst Adv Study, Arcisstr 21, D-80333 Munich, Germany
基金
美国能源部;
关键词
MATRIX MODELS; SEARCH;
D O I
10.1103/PhysRevD.94.115030
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
After the Higgs boson discovery, it was established that the Higgs mechanism explains electroweak symmetry breaking and generates the masses of all particles in the Standard Model, with the possible exception of neutrino masses. The hierarchies among fermion masses and mixing angles, however, remain unexplained. We propose a new class of two Higgs doublet models in which a flavor symmetry broken at the electroweak scale addresses this problem. The models are strongly constrained by electroweak precision tests and the fact that they produce modifications to Higgs couplings and flavor-changing neutral currents; they are also constrained by collider searches for extra scalar bosons. The surviving models are very predictive, implying unavoidable new physics signals at the CERN Large Hadron Collider, e.g., extra Higgs bosons with masses M < 700 GeV.
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页数:6
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