Discovering new gauge bosons of electroweak symmetry breaking at LHC-8

Du, Chun; He, H.; Kuang, Yu Ping; Zhang, Bin; Christensen, Neil D.; Chivukula, R. Sekhar; Simmons, Elizabeth H.

doi:10.1103/physrevd.86.095011

Cited by 17 publications

(12 citation statements)

References 52 publications

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“…The study of gauge boson self-interactions may also provide evidence for the existence of new phenomena at a higher energy scale [13][14][15][16]. Possible new physics beyond the SM, expressed in a model independent way by higher-dimensional effective operators [17][18][19][20][21][22], can be implemented with anomalous triple gauge and quartic gauge couplings (AQGC), both of which contribute in triple gauge boson production.…”

Section: Introductionmentioning

confidence: 99%

Search forWWγandWZγproduction and constraints on anomalous quartic gauge couplings inpp<

Chatrchyan¹,

Khachatryan²,

Sirunyan³

et al. 2014

Phys. Rev. D

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Section: Introductionmentioning

confidence: 99%

Search forWWγandWZγproduction and constraints on anomalous quartic gauge couplings inpp<

Chatrchyan¹,

Khachatryan²,

Sirunyan³

et al. 2014

Phys. Rev. D

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“…This is measured at LHC and Tevatron, with the full dataset, to be slightly enhanced compared to the SM prediction [14][15][16][17], with the diphoton signal strength equal to 1.55 ± 0.31 at ATLAS and 0.78 ± 0.28 at CMS. While most of the efforts were focused on the Higgs physics associated with a new charged scalar or a vector fermion, both of which naturally arise in supersymmetry [18][19][20][21][22][23][24] or composite Higgs frameworks [25][26][27][28], less extensive research has been conducted recently on the possibility that a heavy charged vector boson be responsible for the observed deviations of the Higgs couplings from the corresponding SM predictions [9,[29][30][31].…”

Section: Introductionmentioning

confidence: 99%

LHC data and aspects of new physics

Alanne

Chiara

Tuominen

2014

J. High Energ. Phys.

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Abstract:We consider the implications of current LHC data on new physics with strongly interacting sector(s). We parametrize the relevant interaction Lagrangian and study the best fit values in light of current data. These are then considered within a simple framework of bosonic technicolor. We consider first the effective Lagrangian containing only spin-0 composites of the underlying theory, which corresponds to a two Higgs doublet model. With respect to this baseline, the effects of the vector bosons, a staple in strong interacting theories, are illustrated by considering two cases: first, the case where the effects of the vector bosons arise only through their mixing with the electroweak SU(2) L gauge fields and, second, the case where also a direct interaction term with neutral scalars exists. We find that the case with a direct coupling of the composite vector fields to the Higgs allows the tested model to fit the experimental results with goodness comparable to that of the SM.

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“…Collider phenomenologies in this option were studied 3 in detail in Ref. [58][59][60]. This limit is theoretically interesting, because it can be regarded as an effective theory of strongly interacting Higgs sector [61][62][63] motivated by models of hidden local symmetry [64][65][66][67][68].…”

Section: Fig 3: Plot Similar Tomentioning

confidence: 99%

Unitarity sum rules, three-site moose model, and the ATLAS 2 TeV diboson anomalies

Abe¹,

Nagai

Okawa

et al. 2015

Phys. Rev. D

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We investigate W ′ interpretations for the ATLAS 2 TeV diboson anomalies. The roles of the unitarity sum rules, which ensure the perturbativity of the longitudinal vector boson scattering amplitudes, are emphasized. We find the unitarity sum rules and the custodial symmetry are powerful enough to predict various nontrivial relations among W W Z ′ , W ZW ′ , W W h, W W ′ h and ZZ ′ h coupling strengths in a model independent manner. We also perform surveys in the general parameter space of W ′ models and find the ATLAS 2 TeV diboson anomalies may be interpreted as a W ′ particle of the three site moose model, i.e., a Kaluza-Klein like particle in a deconstructed extra dimension model. It is also shown that the non standard-model-like Higgs boson is favored by the present data to interpret the ATLAS diboson anomalies as the consequences of the W ′ and Z ′ bosons.

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Discovering new gauge bosons of electroweak symmetry breaking at LHC-8

Cited by 17 publications

References 52 publications

Search forWWγandWZγproduction and constraints on anomalous quartic gauge couplings inpp<

Search forWWγandWZγproduction and constraints on anomalous quartic gauge couplings inpp<

LHC data and aspects of new physics

Unitarity sum rules, three-site moose model, and the ATLAS 2 TeV diboson anomalies

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