Higgs<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>C</mml:mi><mml:mi>P</mml:mi></mml:mrow></mml:math>violation from vectorlike quarks

Chen, Chien-Yi; Dawson, S.; Zhang, Yue

doi:10.1103/physrevd.92.075026

Cited by 9 publications

(11 citation statements)

References 46 publications

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“…The diagram in Fig. 2a could produce EDM contributions due to new CPV interactions in the charged weak currents, as is the case in vector-like quark models [17]. This diagram relies on a relative phase between the left-and right-handed charged weak current…”

Section: Electron Electric Dipole Momentmentioning

confidence: 93%

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Electroweak baryogenesis with vector-like leptons and scalar singlets

Bell

Dolan

Friedrich

et al. 2019

J. High Energ. Phys.

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We investigate the viability of electroweak baryogenesis in a model with a first order electroweak phase transition induced by the addition of two gauge singlet scalars. A vector-like lepton doublet is introduced in order to provide CP violating interactions with the singlets and Standard Model leptons, and the asymmetry generation dynamics are examined using the vacuum expectation value insertion approximation. We find that such a model is readily capable of generating sufficient baryon asymmetry while satisfying electron electric dipole moment and collider phenomenology constraints.

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Section: Electron Electric Dipole Momentmentioning

confidence: 93%

“…Using the notation introduced in Section A.1 and the results from Refs. [17,26,89], the primary contributions to the electron EDM are given by…”

Section: A2 Edm Formulaementioning

confidence: 99%

Electroweak baryogenesis with vector-like leptons and scalar singlets

Bell

Dolan

Friedrich

et al. 2019

J. High Energ. Phys.

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“…[26][27][28][29][30][31][32]) with the simplest source of dynamical CP violation being the spatially varying phase of the top quark mass. An enhancement of C and CP violation in this type of models can be achieved via either complex Higgs VEVs [33][34][35], higher dimensional operators [36][37][38][39], or by introducing vector-like quarks [7,[40][41][42].…”

Section: Introductionmentioning

confidence: 99%

Electroweak phase transitions in multi-Higgs models: the case of Trinification-inspired THDSM

Vieu

Morais

Pasechnik

2018

J. Cosmol. Astropart. Phys.

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The rich vacuum structure of multi-Higgs extensions of the Standard Model (SM) may have interesting cosmological implications for the electroweak phase transition (EWPT). As an important example of such class of models, we consider a particularly simple low-energy SM-like limit of a recently proposed Grand-Unified Trinification model with the scalar sector composed of two Higgs doublets and a complex singlet and with a global U(1) family symmetry. The fermion sector of this model is extended with a family of vector-like quarks which enhances CP violation. With the current study, we aim at exploring the generic vacuum structure and uncovering the features of the EWPT in this model relevant for cosmology. We show the existence of different phase transition patterns providing strong departure from thermal equilibrium. Most of these observations are not specific to the considered model and may generically be expected in other multi-Higgs extensions of the SM.

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“…(10) while the CP-odd scalar mass squared matrix in the basis (φ 0i 1 , φ 0i 2 , s 2 , t 2 ) is given in Eq. (11). We have…”

Section: The Model and Formalismmentioning

confidence: 99%

New signals for vector-like down-type quark in U(1) of $$E_6$$

Das

Nandi

et al. 2018

Eur. Phys. J. C

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We consider the pair production of vector-like down-type quarks in an E 6 motivated model, where each of the produced down-type vector-like quark decays into an ordinary Standard Model light quark and a singlet scalar. Both the vector-like quark and the singlet scalar appear naturally in the E 6 model with masses at the TeV scale with a favorable choice of symmetry breaking pattern. We focus on the non-standard decay of the vector-like quark and the new scalar which decays to two photons or two gluons. We analyze the signal for the vector-like quark production in the 2γ + ≥ 2 j channel and show how the scalar and vectorlike quark masses can be determined at the Large Hadron Collider.

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HiggsCPviolation from vectorlike quarks

Cited by 9 publications

References 46 publications

Electroweak baryogenesis with vector-like leptons and scalar singlets

Electroweak baryogenesis with vector-like leptons and scalar singlets

Electroweak phase transitions in multi-Higgs models: the case of Trinification-inspired THDSM

New signals for vector-like down-type quark in U(1) of $$E_6$$

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