Branes and the gauge hierarchy

Antoniadis, Ignatios; Bachas, C.

doi:10.1016/s0370-2693(99)00102-1

Cited by 119 publications

(120 citation statements)

References 29 publications

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“…Moreover, the top quark mass turns out to be rather high, m t ∼ 220 GeV. It is an open question wether this discrepancy can be attributed to threshold corrections that can be important in the case of two dimensional bulk [129].…”

Section: The Quark and Lepton Mass Structurementioning

confidence: 99%

D‐branes in Standard Model building, gravity and cosmology

Kiritsis

2004

Fortschritte der Physik

151

193

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D-branes are by now an integral part of our toolbox towards understanding nature. In this review we will describe recent progress in their use to realize fundamental interactions. The realization of the Standard Model and relevant physics and problems will be detailed. New ideas on realizing 4-dimensional gravity use the brane idea in an important way. Such approaches will be reviewed and compared to the standard paradigm of compactification. Branes can play a pivotal role both in early-and late-universe cosmology mainly via the brane-universe paradigm. Brane realizations of various cosmological ideas (early inflation, sources for dark matter and dark energy, massive gravity etc) will be also reviewed.

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Section: The Quark and Lepton Mass Structurementioning

confidence: 99%

D‐branes in Standard Model building, gravity and cosmology

Kiritsis

2004

Fortschritte der Physik

151

193

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“…One could argue that right-handed neutrinos in a single very large extra dimension can be effectively obtained if one of the extra dimensions happens to be much larger than the other(s). However, the fact that infrared effects are dominant in this case destabilises the hierarchy [7]: the Newton or Coulomb potential grows with the size R of the largest dimension.…”

Section: Introductionmentioning

confidence: 99%

Phenomenological implications of neutrinos in extra dimensions

et al. 2002

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Standard Model singlet neutrinos propagating in extra dimensions induce small Dirac neutrino masses. While it seems rather unlikely that their Kaluza-Klein excitations directly participate in the observed neutrino oscillations, their virtual exchange may lead to detectable signatures in future neutrino experiments and in rare charged lepton processes. We show how these effects can be described by specific dimension-six effective operators and discuss their experimental signals.

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“…Moreover, in these open-string models the singular limit is usually accompanied by the emergence of new tadpoles [14,6], that may be eliminated arranging for local cancellations [26]. Actually, in this case if only one of the radii R 2 and R 3 tends to infinity, the local -28-tadpole conditions are identically satisfied.…”

Section: An Interesting Example With N = 2 → N = 1 Breakingmentioning

confidence: 99%

Open descendants of Z2×Z2 freely acting orbifolds

Antoniadis¹,

D’Appollonio

Dudas³

et al. 2000

Nuclear Physics B

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We discuss Z 2 × Z 2 orientifolds where the orbifold twists are accompanied by shifts on momentum or winding lattice states. The models contain variable numbers of D5 branes, whose massless (and, at times, even massive) modes have variable numbers of supersymmetries. We display new type-I models with partial supersymmetry breaking N = 2 → N = 1, N = 4 → N = 1 and N = 4 → N = 2. The geometry of these models is rather rich: the shift operations create brane multiplets related by orbifold transformations that support gauge groups of reduced rank. Some of the models are deformations of six-dimensional supersymmetric type-I models, while others have dual M-theory descriptions.

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Branes and the gauge hierarchy

Cited by 119 publications

References 29 publications

D‐branes in Standard Model building, gravity and cosmology

D‐branes in Standard Model building, gravity and cosmology

Phenomenological implications of neutrinos in extra dimensions

Open descendants of Z2×Z2 freely acting orbifolds

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