Výsledky vyhledávání - "Walter H. Baron"

Akademický článek

Autor: Walter H. Baron, Nahuel A. Yazbek

Publikováno v: Journal of High Energy Physics, Vol 2024, Iss 3, Pp 1-21 (2024)

Abstract A non geometric sector of the duality group emerging in Kaluza-Klein reductions is realized as an effective symmetry in the low energy action of uncompactified type II theories. This is achieved by extending the so called β symmetry of the

Externí odkaz: https://doaj.org/article/7e199bf269b24c2c9eb6e5a0585f7a07

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Akademický článek

Exploring the β symmetry of supergravity

Autor: Walter H. Baron, Diego Marqués, Carmen A. Núñez

Publikováno v: Journal of High Energy Physics, Vol 2023, Iss 12, Pp 1-31 (2023)

Abstract Kaluza-Klein reductions of low energy string effective actions possess a continuous O(d, d) symmetry. The non-geometric elements of this group, parameterized by a bi-vector β, are not inherited from the symmetries of the higher-dimensional

Externí odkaz: https://doaj.org/article/1bc7bde5406140868dc83ccfb0417448

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Akademický článek

The generalized Bergshoeff-de Roo identification

Autor: Walter H. Baron, Eric Lescano, Diego Marqués

Publikováno v: Journal of High Energy Physics, Vol 2018, Iss 11, Pp 1-28 (2018)

Abstract There are two main approaches to duality covariant first order higher derivative corrections to the heterotic string, one extending the duality structure and the other deforming the gauge transformations. In this paper we introduce a framewo

Externí odkaz: https://doaj.org/article/e9dd356d08a34a8d99d66e758684e343

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Akademický článek

The Odd story of α′-corrections

Autor: Walter H. Baron, José J. Fernández-Melgarejo, Diego Marqués, Carmen A. Nuñez

Publikováno v: Journal of High Energy Physics, Vol 2017, Iss 4, Pp 1-41 (2017)

Abstract The α′-deformed frame-like Double Field Theory (DFT) is a T-duality and gauge invariant extension of DFT in which generalized Green-Schwarz transformations provide a gauge principle that fixes the higher-derivative corrections. It include

Externí odkaz: https://doaj.org/article/61c49f7e3d9f4449a05b6a3736d4c623

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Duality covariant field redefinitions

Autor: Walter H. Baron

Publikováno v: Physical Review

We explore the role of the dilaton field on higher derivative supergravity within the framework of Double Field Theory and use it to fix the Lorentz non covariant field redefinitions connecting the metric and dilaton fields with the duality multiplet

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::442a5281364c020d3137cb0018687437
http://repo.scoap3.org/api

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The generalized Bergshoeff-de Roo identification.: Part II

Autor: Walter H. Baron, Diego Marques

Publikováno v: SEDICI (UNLP)
Universidad Nacional de La Plata
instacron:UNLP
Journal of High Energy Physics
Journal of High Energy Physics, Vol 2021, Iss 1, Pp 1-47 (2021)

We recently introduced a T-duality covariant mechanism to compute all-order higher- derivative interactions in the heterotic string. Here we extend the formalism to account for a two-parameter family of corrections that also include the bosonic strin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::abc55c559d2b0c0d7f3ab7d6cebfb619
http://sedici.unlp.edu.ar/handle/10915/118834

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The generalized Bergshoeff-de Roo identification

Autor: Diego Marques, Walter H. Baron, Eric Lescano

Publikováno v: CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
Journal of High Energy Physics
Journal of High Energy Physics, Vol 2018, Iss 11, Pp 1-28 (2018)
SEDICI (UNLP)
Universidad Nacional de La Plata
instacron:UNLP

There are two main approaches to duality covariant first order higher derivative corrections to the heterotic string, one extending the duality structure and the other deforming the gauge transformations. In this paper we introduce a framework from w

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::50745a35d4e5c0550cde34b604a94b09
https://link.springer.com/article/10.1007/JHEP11(2018)160

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On supersymmetric D6–D¯6 systems with magnetic fields

Autor: Walter H. Baron, Adrian R. Lugo

Publikováno v: Physics Letters B. 656:243-252

We study systems of D6 and D ¯ 6 branes with non-zero world-volume magnetic fields in the weak coupling limit. We find two configurations for which the conditions for absence of tachyons in the spectra coincide exactly with those found in the low en

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::580fae0d7426ff505dbee7cf6fc77bd1
https://doi.org/10.1016/j.physletb.2007.09.031

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Uplifting Maximal Gauged Supergravities

Autor: Walter H. Baron

Which theories have a higher dimensional origin in String/M-theory is a non trivial question and it is still far from being understood in the constrained scenario of maximal supergravities. After 35 years of progress in this direction we have found s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0934f841307d2610413fde31a7cfb4ff
http://arxiv.org/abs/1512.05567

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Gaugings fromE7(7)extended geometries

Autor: Walter H. Baron

Publikováno v: Physical Review D. 91

We discuss the construction of gaugings in recent models of E7 Extended Geometries, focusing on the two inequivalent SL(8) truncations of the theory. In these sectors the conditions for the generation of gaugings in the 36, 36', 420 and 420' represen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fcb6f46d52a0012dedf715686dae4b65
https://doi.org/10.1103/physrevd.91.024008

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