Erratum: Derivation of gauge invariance from high-energy unitarity bounds on the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>S</mml:mi></mml:math>matrix

Cornwall, John M.; Levin, David; Tiktopoulos, George

doi:10.1103/physrevd.11.972

Cited by 245 publications

(223 citation statements)

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“…Note that with the identifications ϕ = G 0 (the electroweak would-be Nambu-Goldstone boson), κ iG 0 = |N i3 cos β − N i4 sin β| 2 and m G 0 = m Z , one recovers the decay width into longitudinal Z's indicated in equation (8), in compliance with the equivalence theorem [17].…”

Section: Decays Into Gravitinosmentioning

confidence: 72%

Search for supersymmetry with a light gravitino at the Fermilab Tevatron and CERN LEP colliders

et al. 1996

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We analyze the prospects for discovering supersymmetry at the Fermilab Tevatron and CERN LEP colliders in the scenario that the lightest supersymmetric particle is a gravitino of mass < ∼ 1 keV. We consider in particular the case that the lightest neutralino has a nearly 100% branching fraction into gravitino + photon within the detector. This implies that supersymmetric events should contain both missing (transverse) energy and two energetic photons. Therefore one can search for supersymmetry simply through inclusive production of superpartners. We consider the exclusion and reach capabilities of the Tevatron in exploring the supersymmetric parameter space, and study the efficiencies which can be achieved in this search. We also consider the discovery reach and backgrounds at LEP with √ s = 160, 175, and 190 GeV. * Supported mainly by an INFN postdoctoral fellowship, Italy.

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Section: Decays Into Gravitinosmentioning

confidence: 72%

Search for supersymmetry with a light gravitino at the Fermilab Tevatron and CERN LEP colliders

et al. 1996

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“…One of the main arguments for the existence of the Higgs is [1,2,3,4,5] that without it the scattering amplitude for the longitudinal components of the massive W and Z bosons would grow with energy as ∼ E 2 , and thus violate unitarity at energies of order 4πM W /g ∼ 1.5 TeV. It has been shown in [6,7] that higher dimensional gauge theories maintain unitarity in the sense that the terms in the amplitude that would grow with energies as E 4 or E 2 cancel (though the theory itself becomes strongly interacting at a cutoff scale which depends on the size of the extra dimension and the effective gauge coupling, and usually tree-level unitarity also breaks down at a scale related to the cutoff scale due to the growing number of KK modes that can contribute to the constant pieces of certain amplitudes).…”

Section: Introductionmentioning

confidence: 99%

Gauge theories on an interval: Unitarity without a Higgs boson

et al. 2004

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We consider extra dimensional gauge theories on an interval. We first review the derivation of the consistent boundary conditions (BC's) from the action principle. These BC's include choices that give rise to breaking of the gauge symmetries. The boundary conditions could be chosen to coincide with those commonly applied in orbifold theories, but there are many more possibilities. To investigate the nature of gauge symmetry breaking via BC's we calculate the elastic scattering amplitudes for longitudinal gauge bosons. We find that using a consistent set of BC's the terms in these amplitudes that explicitly grow with energy always cancel without having to introduce any additional scalar degree of freedom, but rather by the exchange of Kaluza-Klein (KK) gauge bosons. This suggests that perhaps the SM Higgs could be completely eliminated in favor of some KK towers of gauge fields. We show that from the low-energy effective theory perspective this seems to be indeed possible. We display an extra dimensional toy model, where BC's introduce a symmetry breaking pattern and mass spectrum that resembles that in the standard model.

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“…Our analysis [5] is performed in the Landau gauge and making use of the Equivalence Theorem (Eq.Th.) [17], …”

Section: Introduction: Strong Dynamics and Chiral Lagrangiansmentioning

confidence: 99%

Electroweak chiral Lagrangians and the Higgs properties at the one-loop level

Sanz-Cillero

2014

EPJ Web of Conferences

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Erratum: Derivation of gauge invariance from high-energy unitarity bounds on theSmatrix

Cited by 245 publications

References 0 publications

Search for supersymmetry with a light gravitino at the Fermilab Tevatron and CERN LEP colliders

Search for supersymmetry with a light gravitino at the Fermilab Tevatron and CERN LEP colliders

Gauge theories on an interval: Unitarity without a Higgs boson

Electroweak chiral Lagrangians and the Higgs properties at the one-loop level

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