SU(2) × U(1) breaking by vacuum misalignment

Kaplan, David B.; Georgi, Howard

doi:10.1016/0370-2693(84)91177-8

Cited by 949 publications

(1,490 citation statements)

References 6 publications

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“…9 In principle, important contributions could arise from CPV electron-quark interactions, but these are highly suppressed for the dimension-6 operators under investigation. Table 5.…”

Section: Atomic Edmsmentioning

confidence: 99%

Direct and indirect constraints on CP-violating Higgs-quark and Higgs-gluon interactions

Chien

Cirigliano

Dekens

et al. 2016

J. High Energ. Phys.

117

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Abstract:We investigate direct and indirect constraints on the complete set of anomalous CP-violating Higgs couplings to quarks and gluons originating from dimension-6 operators, by studying their signatures at the LHC and in electric dipole moments (EDMs). We show that existing uncertainties in hadronic and nuclear matrix elements have a significant impact on the interpretation of EDM experiments, and we quantify the improvements needed to fully exploit the power of EDM searches. Currently, the best bounds on the anomalous CP-violating Higgs interactions come from a combination of EDM measurements and the data from LHC Run 1. We argue that Higgs production cross section and branching ratios measurements at the LHC Run 2 will not improve the constraints significantly. On the other hand, the bounds on the couplings scale roughly linearly with EDM limits, so that future theoretical and experimental EDM developments can have a major impact in pinning down interactions of the Higgs.

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“…9 In principle, important contributions could arise from CPV electron-quark interactions, but these are highly suppressed for the dimension-6 operators under investigation. Table 5.…”

Section: Atomic Edmsmentioning

confidence: 99%

Direct and indirect constraints on CP-violating Higgs-quark and Higgs-gluon interactions

Chien

Cirigliano

Dekens

et al. 2016

J. High Energ. Phys.

117

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“…4 Such a "custodial-like" color bulk symmetry was already considered in ref. [31] as a attempt to solve the CP problem of anarchic RS models.…”

Section: Jhep02(2013)149mentioning

confidence: 83%

“…The latter question is yet to be answered despite intense experimental efforts. An interesting theoretical speculation where the EW scale is naturally low is in models where the Higgs is not an elementary field but a composite object [3][4][5][6][7][8]. The Higgs mass can moreover be naturally light if the Higgs field arises as a pseudo Goldstone boson (PGB) [9,10].…”

Section: Introductionmentioning

confidence: 99%

Up asymmetries from exhilarated composite flavor structures

Rold

Delaunay

Grojean

et al. 2013

J. High Energ. Phys.

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We present a class of warped extra dimension (composite Higgs) models which conjointly accommodates the tt forward-backward asymmetry observed at the Tevatron and the direct CP asymmetry in singly Cabibbo suppressed D decays first reported by the LHCb collaboration. We argue that both asymmetries, if arising dominantly from new physics beyond the Standard Model, hint for a flavor paradigm within partial compositeness models in which the right-handed quarks of the first two generations are not elementary fields but rather composite objects. We show that this class of models is consistent with current data on flavor and CP violating physics, electroweak precision observables, dijet and top pair resonance searches at hadron colliders. These models have several predictions which will be tested in forthcoming experiments. The CP asymmetry in D decays is induced through an effective operator of the form (ūc) V +A (ss) V +A at the charm scale, which implies a larger CP asymmetry in the D 0 → K + K − rate relative the D 0 → π + π − channel. This prediction is distinctive from other Standard Model or dipole-based new physics interpretation of the LHCb result. CP violation in D−D mixing as well as an an excess of dijet production of the LHC are also predicted to be observed in a near future. A large top asymmetry originates from the exchange of an axial resonance which dominantly produces left-handed top pairs. As a result a negative contribution to the lepton-based forward-backward asymmetry in tt production, as well as O(10%) forward-backward asymmetry in bb production above m bb ≃ 600 GeV at the Tevatron is expected.

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“…The mass gap between the M W , M Z and M h masses, all of O(100 GeV), and the new physics scale (if there is one within reach), suggests that the Higgs boson and the would-be Goldstone bosons ω ± and z could be (pseudo) Goldstone Boson [111][112][113][114][115][116][117][118], related with a global spontaneous symmetry breaking extending the SU (2) L × SU (2) R → SU (2) L+R global symmetry breaking of the SM. There are several models with specific implementations for the relevant global symmetry breaking pattern: the (Minimal) Composite Higgs Model based on the coset SO(5)/SO(4) [78][79][80][81], dilaton models [82,83] and others [119].…”

Section: Chapter 2 Chiral Ew Lagrangianmentioning

confidence: 99%

Study of the Electroweak Symmetry Breaking Sector for the LHC

López¹

2017

Springer Theses

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SU(2) × U(1) breaking by vacuum misalignment

Cited by 949 publications

References 6 publications

Direct and indirect constraints on CP-violating Higgs-quark and Higgs-gluon interactions

Direct and indirect constraints on CP-violating Higgs-quark and Higgs-gluon interactions

Up asymmetries from exhilarated composite flavor structures

Study of the Electroweak Symmetry Breaking Sector for the LHC

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