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CERN Document Server 10 registres trobats  La cerca s'ha fet en 0.82 segons. 
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Emergence of kinetic terms in String Theory / Palti, Eran (speaker) (Ben-Gurion University of the Negeva, Israel)
The Emergence Proposal proposes that kinetic terms for fields in quantum gravity are emergent from integrating out towers of heavy states, and that this physics underlies some of the central Swampland constraints on effective theories. We provide evidence for this idea in the context of type IIA string theory on Calabi-Yau manifolds. [...]
2024 - 1814. Conferences, Workshops & Schools; Strings2024 Conference External links: Talk details; Event details In : Strings2024 Conference
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Holography, Amplitudes and the Swampland / Palti, Eran (speaker)
The Swampland program aims to understand constraints on effective theories which arise through the requirement of the existence of an ultraviolet completion to quantum gravity. To date, research has primarily utilized evidence from string theory examples to propose and test such constraints. [...]
2023 - 3783. Theory Colloquia External link: Event details In : Holography, Amplitudes and the Swampland
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Distance Conjecture and Potentials / Palti, Eran (speaker)
I will discuss relations between the Swampland distance conjecture, and its generalisations, and potentials in string theory..
2019 - 3732. Conferences & Workshops; String Phenomenology 2019 External links: Talk details; Event details In : String Phenomenology 2019
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Massive wavefunctions, proton decay and FCNCs in local F-theory GUTs / Camara, Pablo G. (CERN ; Barcelona U. ; ICC, Barcelona U.) ; Dudas, Emilian (Ecole Polytechnique, CPHT ; Orsay, LPT) ; Palti, Eran (Ecole Polytechnique, CPHT)
We study the coupling of MSSM fields to heavy modes through cubic superpotential interactions in F-theory SU(5) GUTs. The couplings are calculated by integrating the overlap of two massless and one massive wavefunctions. [...]
arXiv:1110.2206; CPHT-RR065.0911; CERN-PH-TH-2011-243; ICCUB-11-170; CPHT-RR065.0911; CERN-PH-TH-2011-243; ICCUB-11-170.- 2011 - 54 p. - Published in : JHEP 12 (2011) 112 Fulltext: PDF; Springer Open Access article: PDF; External link: Preprint
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On Fluxed Instantons and Moduli Stabilisation in IIB Orientifolds and F-theory / Grimm, Thomas W (Munich, Max Planck Inst.) ; Kerstan, Max (Heidelberg U.) ; Palti, Eran (Ecole Polytechnique, CPHT) ; Weigand, Timo (Heidelberg U.)
We study the superpotential induced by Euclidean D3-brane instantons carrying instanton flux, with special emphasis on its significance for the stabilisation of Kahler moduli and Neveu-Schwarz axions in Type IIB orientifolds. Quite generally, once a chiral observable sector is included in the compactification, arising on intersecting D7-branes with world-volume flux, resulting charged instanton zero modes prevent a class of instantons from participating in moduli stabilisation. [...]
arXiv:1105.3193.- 2011 - 9 p. - Published in : Phys. Rev. D 84 (2011) 066001 External link: Preprint
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Anomaly Mediation in Superstring Theory / Conlon, Joseph P ; Goodsell, Mark ; Palti, Eran
We study anomaly mediated supersymmetry breaking in type IIB string theory and use our results to test the supergravity formula for anomaly mediated gaugino masses. [...]
arXiv:1008.4361 ; CPHT-RR056.0810 ; DESY 10-135 ; OUTP-10-21P. - 2010.
Preprint
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One-loop Yukawa Couplings in Local Models / Conlon, Joseph P ; Goodsell, Mark ; Palti, Eran
We calculate the one-loop Yukawa couplings and threshold corrections for supersymmetric local models of branes at singularities in type IIB string theory. We compute the corrections coming both from wavefunction and vertex renormalisation. [...]
arXiv:1007.5145; CPHT-RR054.0710; OUTP-10-16P; DESY 10-115.- 2010 - Published in : JHEP 11 (2010) 087 External link: Preprint
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8.
On hypercharge flux and exotics in F-theory GUTs / Dudas, Emilian ; Palti, Eran
We study SU(5) Grand Unified Theories within a local framework in F-theory with multiple extra U(1) symmetries arising from a small monodromy group. The use of hypercharge flux for doublet-triplet splitting implies massless exotics in the spectrum that are protected from obtaining a mass by the U(1) symmetries. [...]
arXiv:1007.1297.- 2010 - 38 p. - Published in : JHEP 09 (2010) 013 External link: Preprint
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Froggatt-Nielsen models from E8 in F-theory GUTs / Dudas, Emilian ; Palti, Eran
This paper studies F-theory SU(5) GUT models where the three generations of the standard model come from three different curves. All the matter is taken to come from curves intersecting at a point of enhanced E8 gauge symmetry. [...]
arXiv:0912.0853.- 2009 - 42 p. - Published in : JHEP 01 (2010) 127 External link: Preprint
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Aspects of Flavour and Supersymmetry in F-theory GUTs / Conlon, Joseph P ; Palti, Eran
We study the constraints of supersymmetry on flavour in recently proposed models of F-theory GUTs. We relate the topologically twisted theory to the canonical presentation of eight-dimensional super Yang-Mills and provide a dictionary between the two. [...]
arXiv:0910.2413; OUTP-09-25P; CPHT-RR107.1009.- 2009 - Published in : JHEP 01 (2010) 029 External link: Preprint
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