A new class of de Sitter vacua in type IIB large volume compactifications
- D. Gallego, M. C. Marsh, B. Vercnocke, T. Wrase
- Mathematics
- 4 July 2017
A bstractWe construct a new class of metastable de Sitter vacua of flux compactifications of type IIB string theory. These solutions provide a natural extension of the ‘Large Volume Scenario’ anti-de…
On the effective description of large volume compactifications
- D. Gallego
- Mathematics
- 28 March 2011
We study the reliability of the Two-Step moduli stabilization in the type-IIB Large Volume Scenarios with matter and gauge interactions. The general analysis is based on a family of $ \mathcal{N} = 1…
An effective description of the landscape — I
- D. Gallego, M. Serone
- Physics
- 1 December 2008
We continue our analysis of establishing the reliability of ``simple" effective theories where massive fields are ``frozen'' rather than integrated out, in a wide class of four dimensional theories…
Moduli Stabilization in non-Supersymmetric Minkowski Vacua with Anomalous U(1) Symmetry
- D. Gallego, M. Serone
- Physics
- 1 July 2008
We study how two moduli can be stabilized in a Minkowski/de Sitter vacuum for a wide class of string-inspired Supergravity models with an effective Fayet-like Supersymmetry breaking. It is shown…
Finite temperature effects in modular cosmology
- D. Gallego
- PhysicsJournal of Cosmology and Astroparticle Physics
- 8 May 2020
We revisit the cosmological history in the presence of light moduli by including possible thermal effects in the scalar potential. The well known cosmological moduli problem regards initial energy…
RENORMALIZATION GROUP AND GRAND UNIFICATION WITH 331 MODELS
- R. Diaz, D. Gallego, R. Martínez
- Physics
- 11 May 2005
By making a renormalization group analysis we explore the possibility of having a 331 model as the only intermediate gauge group between the standard model and the scale of unification of the three…
An Effective Description of the Landscape - II
- D. Gallego, M. Serone
- Physics
- 16 April 2009
We continue our analysis of establishing the reliability of “simple” effective theories where massive fields are “frozen” rather than integrated out, in a wide class of four dimensional theories with…
Light field integration in SUGRA theories
- D. Gallego
- Physics
- 25 January 2013
We revisit the integration of fields in 𝒩 = 1 Supergravity with the requirement that the effective theory has a reliable two-derivative supersymmetric description. In particular, we study, in a…
Effective upliftings in Large volume compactifications
- D. Gallego
- Physics
- 4 February 2015
Development of pre-processing methods for attenuation correction algorithms in small animal PET/MR imaging
- D. Gallego
- Medicine
- 22 April 2008
In this work pre-processing methods are developed, such as registration and segmentation, that can be used to perform an attenuation artifact-free reconstruction of Positron Emission Tomography images of small animals.
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