Effective Lagrangian for a light Higgs-like scalar

Contino, Roberto; Ghezzi, Margherita; Grojean, Christophe; Mühlleitner, Margarete; Spira, M.

doi:10.1007/jhep07(2013)035

Cited by 339 publications

(405 citation statements)

References 132 publications

(274 reference statements)

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“…In table 12 we show the 90% bounds we obtain by turning on one CPV coupling at a time. We find that current LHC data exclude pseudoscalar Yukawa couplings greater than about 1%.…”

Section: Limits On θ and Im Y Q From Higgs Production And Decaymentioning

confidence: 99%

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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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“…In table 12 we show the 90% bounds we obtain by turning on one CPV coupling at a time. We find that current LHC data exclude pseudoscalar Yukawa couplings greater than about 1%.…”

Section: Limits On θ and Im Y Q From Higgs Production And Decaymentioning

confidence: 99%

“…12 These targets do not seem unrealistic and further motivate systematic studies of hadronic and nuclear matrix elements with lattice QCD and modern nuclear many-body methods.…”

Section: Jhep02(2016)011mentioning

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

View full text Add to dashboard Cite

show abstract

“…In view that the h has been found, it can be extended to include the new Higgs-like particle found at the LHC (refs. [22][23][24][25][26][27][28][29][30][31][32][33]). One of the goals of this work will be to expose this extension, considering non-linear Electroweak Chiral Lagrangians as a low-energy (M W , M h √ s 3 TeV) parameterization of the new physics at the TeV scale.…”

Section: Chapter 2 Chiral Ew Lagrangianmentioning

confidence: 99%

“…Note the presence of the non-linear term 1 − (ω 2 /v 2 ). This is the main difference from linear approaches like [22][23][24][25][26][27][28][29][30][31][32][33]. The covariant derivative of the U field (eq.…”

Section: The Chiral Lagrangian and Its Parameterizationsmentioning

confidence: 99%

“…The tools of Effective Chiral Lagrangians and unitarization procedures will be used, and the old Higgsless Electroweak Chiral Lagrangian [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21](EChL) will be extended to accommodate a Higgs-like boson at ∼ 125 GeV. Since the discovery of the Higgs-like boson at the LHC, this field has received increasing attention [22][23][24][25][26][27][28][29][30][31][32][33]. I hope that this dissertation, besides our original results [34][35][36][37][38][39] 1 that will be described, can be a useful introduction to the field of a strongly interacting EWSBS with a light Higgs but below the possible new-physics scale.…”

Section: Introductionmentioning

confidence: 99%

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