Kinetic mixing effect in noncommutative B − L gauge theory

Journal of High Energy Physics

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[1] 0000 0001 2105 6888, grid.267849.6, Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Nghia Do, Cau Giay, 100000, Hanoi, Vietnam;Phenikaa Institute for Advanced Study and Faculty of Basic Science, Phenikaa University, To Huu, Yen Nghia, Ha Dong, 100000, Hanoi, Vietnam;

关键词: Beyond Standard Model;    Cosmology of Theories beyond the SM;    Gauge Symmetry;   

DOI  :  10.1007/JHEP09(2019)054

来源: publisher

【 摘 要 】

It is well established that the SU(P)L gauge symmetry for P ≥ 3 can address the question of fermion generation number due to the anomaly cancellation, but it neither commutes nor closes algebraically with electric and baryon-minus-lepton charges. Hence, two U(1) factors that determine such charges are required, yielding a complete gauge symmetry, SU(P)L ⊗ U(1)X ⊗ U(1)N, apart from the color group. The resulting theory manifestly provides neutrino mass, dark matter, inflation, and baryon asymmetry of the universe. Furthermore, this gauge structure may present kinetic mixing effects associated to the U(1) gauge fields, which affect the electroweak precision test such as the ρ parameter and Z couplings as well as the new physics processes. We will construct the model, examine the interplay between the kinetic mixing and those due to the symmetry breaking, and obtain the physical results in detail.

【 授权许可】

Unknown