Nonzero<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi>U</mml:mi><mml:mrow><mml:mi>e</mml:mi><mml:mn>3</mml:mn></mml:mrow></mml:msub></mml:math>and TeV leptogenesis through<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi>A</mml:mi><mml:mn>4</mml:mn></mml:msub></mml:math>symmetry breaking

Ahn, Y. H.; Chen, Chian-Shu

doi:10.1103/physrevd.81.105013

Cited by 74 publications

(72 citation statements)

References 50 publications

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“…[165] we have studied the 3-3-1 model with neutral fermions based on S 4 group, in which most of the Higgs multiplets are in triplets under S 4 except χ lying in JHEP04(2014)133 a singlet, 1 and the exact tribimaximal form [3][4][5][6] is obtained, where θ 13 = 0. As we know, the recent considerations have implied θ 13 = 0 [15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32], but small as given in (1.2). This problem has been improved in this type of the model in ref.…”

Section: Jhep04(2014)133mentioning

confidence: 99%

“…This has stimulated work on flavor symmetries and non-Abelian discrete symmetries are considered to be the most attractive candidate to formulate dynamical principles that can lead to the flavor mixing patterns for quarks and lepton. There are many recent models based on the nonAbelian discrete symmetries, such as A 4 [15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32]34], A 5 [35][36][37][38][39][40][41][42][43][44][45][46][47], S 3 , S 4 , D 4 [117][118][119][120][121][122][123][124][125][126][127][128], D 5 [129,130], T ′ [131][132]...…”

Section: Jhep04(2014)133mentioning

confidence: 99%

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The T 7 flavor symmetry in 3-3-1 model with neutral leptons

Vien

Long²

2014

J. High Energ. Phys.

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We construct a 3-3-1 model based on non-Abelian discrete symmetry T 7 responsible for the fermion masses. Neutrinos get masses from only anti-sextets which are in triplets 3 and 3 * under T 7 . The flavor mixing patterns and mass splitting are obtained without perturbation. The tribimaximal form obtained with the breaking T 7 → Z 3 in charged lepton sector and both T 7 → Z 3 and Z 3 → {Identity} must be taken place in neutrino sector but only apart in breakings Z 3 → {Identity} (without contribution of σ ′ ), and the upper bound on neutrino mass 3 i=1 m i at the level is presented. The Dirac CP violation phase δ is predicted to either π 2 or 3π 2 which is maximal CP violation. From the Dirac CP violation phase we obtain the relation between Euler's angles which is consistent with the experimental in PDG 2012. On the other hand, the realistic lepton mixing can be obtained if both the direction for breakings T 7 → Z 3 and Z 3 → {Identity} are taken place in neutrino sectors. The CKM matrix is the identity matrix at the tree-level.

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Section: Jhep04(2014)133mentioning

confidence: 99%

Section: Jhep04(2014)133mentioning

confidence: 99%

The T 7 flavor symmetry in 3-3-1 model with neutral leptons

Vien

Long²

2014

J. High Energ. Phys.

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“…K ± → π ± νν receives CP conserving contributions proportional to ℜe(λ c ), and to ℜe(λ t ) and a CP violating one proportional to ℑm(λ t ). E949 Collaboration [11,12] and E391a Collaboration [13] have then measured…”

Section: Pos(ckm2016)061mentioning

confidence: 99%

Theory of rare $K$ decays

D’Ambrosio¹

2017

Proceedings of 9th International Workshop on the CKM Unitarity Triangle — PoS(CKM2016)

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“…The K L → π 0 νν decay has been searched for by the E391a experiment [62] at the KEK proton synchrotron, setting the 90% C.L. upper limit…”

Section: K → πνν Datamentioning

confidence: 99%

Z'-induced FCNC Decays of Top, Beauty and Strange Quarks

Kohda¹

2016

Proceedings of the European Physical Society Conference on High Energy Physics — PoS(EPS-HEP2015)

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Anomalous b → s transitions from LHCb data may suggest a new massive gauge boson Z′ that couples to the left-handed b → s current, which in turn implies a coupling to the t → c current. In this paper, we study flavor-changing neutral current (FCNC) decays of the top quark induced by a Z ′ boson, namely t → cZ ′ , based on a model of the gauged Lµ − Lτ symmetry (the difference between the muon and tauon numbers) with vector-like quarks, which was introduced to explain the anomalous LHCb data. We illustrate that searching for t → cZ ′ via Z ′ → µ + µ − with LHC Run 1 data can already probe a parameter region which is unexplored by B physics for the Z ′ mass around O(10) GeV or more. We further extend the model to very light Z ′ with mass below 400 MeV, which is motivated by the muon g − 2 anomaly. Taking rare B and K meson decay data into account, we give upper limits on the t → cZ ′ branching ratio for the light Z ′ case, and discuss about its observability at the LHC. We also scrutinize the possibility that the decay KL → π 0 Z ′ with Z ′ → νν may lead to apparent violation of the usual Grossman-Nir bound of B(KL → π 0 νν) < 1.4 × 10 −9 .

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NonzeroUe3and TeV leptogenesis throughA4symmetry breaking

Cited by 74 publications

References 50 publications

The T 7 flavor symmetry in 3-3-1 model with neutral leptons

The T 7 flavor symmetry in 3-3-1 model with neutral leptons

Theory of rare $K$ decays

Z'-induced FCNC Decays of Top, Beauty and Strange Quarks

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