<i>Recent Developments in Gauge Theories</i>

Hooft, Gerard ’t; Itzykson, C.; Jaffe, Arthur; Lehmann, Henri; Mitter, P. K.; Singer, I. M.; Stora, R.; Cahill, Kévin

doi:10.1063/1.2914581

Cited by 405 publications

(487 citation statements)

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“…Although the Standard Model (SM) for particle physics has been successful for over three decades, it still shows some problems which solutions could imply physics beyond its scope [1][2][3][4][5][6][7][8][9][10]. Recently, the ATLAS [11,12] and CMS [13,14] experiments at LHC have discovered a new neutral boson with properties consistent with those of the SM Higgs boson [15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Phenomenological discriminations of the Yukawa interactions in two-Higgs doublet models with $$Z_2$$ Z 2 symmetry

2014

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There are four types of two-Higgs doublet models under a discrete Z 2 symmetry imposed to avoid tree-level flavor-changing neutral current, i.e. type-I, type-II, type-X, and type-Y models. We investigate the possibility to discriminate the four models in the light of the flavor physics data, including B s -B s mixing, B s,d → μ + μ − , B → τ ν and B → X s γ decays, the recent LHC Higgs data, the direct search for charged Higgs at LEP, and the constraints from perturbative unitarity and vacuum stability. After deriving the combined constraints on the Yukawa interaction parameters, we have shown that the correlation between the mass eigenstate rate asymmetry A of B s → μ + μ − and the ratio R = B(B s → μ + μ − ) exp /B(B s → μ + μ − ) SM could be a sensitive probe to discriminate the four models with future precise measurements of the observables in the B s → μ + μ − decay at LHCb.

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Section: Introductionmentioning

confidence: 99%

Phenomenological discriminations of the Yukawa interactions in two-Higgs doublet models with $$Z_2$$ Z 2 symmetry

2014

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“…Apart from finally accessing the electroweak symmetry breaking scale and thus potentially discovering the elusive Higgs boson, we expect to see new physics that resolves the hierarchy/naturalness problem [1][2][3][4] and perhaps provides an insight into the nature of dark matter. One exciting possible solution to the hierarchy problem is the existence of warped extra dimensions [5,6] which allows for TeV scale gravitational interactions.…”

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confidence: 99%

Randall-Sundrum graviton spin determination using azimuthal angular dependence

Murayama

Rentala

2012

Phys. Rev. D

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Quantum interference of helicity amplitudes provides a powerful tool for measuring the spins of new particles. By looking at the azimuthal angular dependence of the differential cross-section in the production followed by decay of a new particle species one can determine its spin by looking at the various cosine modes. The heavy spin-2 Kaluza-Klein (KK) graviton provides a unique signature with a cos (4φ) mode. We study the feasibility of this approach to measuring the spin of the KK graviton in the Randall-Sundrum Model at the LHC.

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“…Chiral symmetries in particular can provide exact, non-perturbative constraints on renormalization group flow. As proposed by 't Hooft [24], anomaly coefficients remain invariant under the renormalization-group flow, and hence their matching can serve as a useful consistency check. In our C/Z Z 3 example, however, we find by studying the surviving interactions in the theory that there are no chiral symmetries in the UV with nontrivial 't Hooft anomalies.…”

Section: Interactions and Symmetriesmentioning

confidence: 99%

On the critical behavior of D1-brane theories

Silverstein¹

2000

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We study renormalization-group flow patterns in theories arising on D1-branes in various supersymmetry-breaking backgrounds. We argue that the theory of N D1-branes transverse to an orbifold space can be fine-tuned to flow to the corresponding orbifold conformal field theory in the infrared, for particular values of the couplings and theta angles which we determine using the discrete symmetries of the model. By calculating various nonplanar contributions to the scalar potential in the worldvolume theory, we show that fine-tuning is in fact required at finite N, as would be generically expected. We further comment on the presence of singular conformal field theories (such as those whose target space includes a "throat" described by an exactly solvable CFT) in the non-supersymmetric context. Throughout the analysis two applications are considered: to gauge theory/gravity duality and to linear sigma model techniques for studying worldsheet string theory.

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Recent Developments in Gauge Theories

Cited by 405 publications

References 0 publications

Phenomenological discriminations of the Yukawa interactions in two-Higgs doublet models with $$Z_2$$ Z 2 symmetry

Phenomenological discriminations of the Yukawa interactions in two-Higgs doublet models with $$Z_2$$ Z 2 symmetry

Randall-Sundrum graviton spin determination using azimuthal angular dependence

On the critical behavior of D1-brane theories

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