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Dark symmetry implication for right-handed neutrinos
American Physical Society (APS) - Tập 111 Số 3
P. Dong, Duong Van Loi, Do Thi Huong, Duy Nguyen Tuan, Dang Van Soa
We argue that the long-standing issues of neutrino mass and dark matter can be manifestly solved in a dark gauge symmetry U(1)D that transforms nontrivially only for three right-handed neutrinos ν1,2,3R—the counterparts of known left-handed neutrinos. This theory assigns the ν1,2,3R dark charge to be D=0, −1, and +1, respectively, in order for anomaly cancelation. Additionally, it imposes an inert Higgs doublet η and two Higgs singlets ξ,ϕ with dark charge D=+1, −1, and +2, respectively. That said, the dark symmetry is broken by ϕ (by two units) down to a dark parity PD=(−1)D, for which ν2,3R and η, ξ are odd, whereas all other fields are even due to hiện toàn bộ
Dark charge versus electric charge
American Physical Society (APS) - Tập 105 Số 7
Duong Van Loi, Cao H. Nam, Ngo Hai Tan, P. Dong
Phenomenology of the SU(3)C⊗SU(2)L⊗SU(3)R⊗U(1)X gauge model
American Physical Society (APS) - Tập 95 Số 7
P. Dong, D. T. Huong, Duong Van Loi, N. T. Nhuan, Nguyễn Thị Kim Ngân
Scotogenic model from an extended electroweak symmetry
American Physical Society (APS) - Tập 110 Số 3
P. Dong, Duong Van Loi
We argue that the higher weak isospin SU(3)L manifestly unifies dark matter and normal matter in its isomultiplets for which dark matter carries a conserved dark charge while normal matter does not. The resultant gauge symmetry is given by SU(3)C⊗SU(3)L⊗U(1)X⊗U(1)G, where the first factor is the color group, while the rest defines a scotoelectroweak theory in which X and G determine electric charge Q=T3−1/3T8+X and dark charge D=−2/3T8+G. This setup provides both appropriate scotogenic neutrino masses and dark matter stability as preserved by a residual dark parity hiện toàn bộ
Phenomenology of a minimal extension of the standard model with a family-dependent gauge symmetry
American Physical Society (APS) - Tập 108 Số 9
Duong Van Loi, Cao H. Nam, P. Dong
Questions of flavor physics and neutrino mass from a flipped hypercharge
American Physical Society (APS) - Tập 109 Số 11
Duong Van Loi, P. Dong, N. T. Duy, Nguyen Huy Thao
The flavor structure of quarks and leptons is not yet fully understood, but it hints a more fundamental theory of nonuniversal generations. We therefore propose a simple extension of the Standard Model by flipping (i.e., enlarging) the hypercharge U(1)Y to U(1)X⊗U(1)N for which both X and N depend on generations of both quark and lepton. By anomaly cancellation, this extension not only explains the existence of just three fermion generations as observed but also requires the presence of a right-handed neutrino per generation, which motivates seesaw neutrino mass generation. Furthermore, in its minimal version with a scalar doublet and two scalar singlets, the model naturally generates the measured fermion-mixing matrices while it successfully accommodates several flavor anomalies observed in the neutral meson mixings, hiện toàn bộ
Dark charge versus electric charge
American Physical Society (APS) - Tập 105 Số 7
Duong Van Loi, Cao H. Nam, Ngo Hai Tan, P. Dong
Scotoseesaw model implied by dark right-handed neutrinos
American Physical Society (APS) - Tập 110 Số 11
P. Dong, Duong Van Loi
We find a dark gauge symmetry U(1)D that transforms nontrivially only for three right-handed neutrinos, ν1,2,3R. The anomaly cancellation demands that they have a dark charge D=0,−1,+1 assigned to hiện toàn bộ
Neutral Higgs boson decays H→Zγ,γγ in 3-3-1 models
American Physical Society (APS) - Tập 100 Số 7
Khiem Hong Phan, T. T. Hong, Hoang Hanh Phuong, Han T, Sergey Kovalenko
Compact dark matter objects via N dark sectors
American Physical Society (APS) - Tập 101 Số 8
Gia Dvali, Emmanouil Koutsangelas, Florian Kühnel
Tổng số: 74   
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