243 citations · 2k across the 51 of their papers we have counts for
47 papers · 1 filter
Scalar masses in general N=2 gauged supergravity theories
Francesca Catino, Claudio A. Scrucca, Paul Smyth
We readdress the question of whether any universal upper bound exists on the square mass m^2 of the lightest scalar around a supersymmetry breaking vacuum in generic N=2 gauged sup…
Simple metastable de Sitter vacua in N=2 gauged supergravity
Francesca Catino, Claudio A. Scrucca, Paul Smyth
We construct a simple class of N=2 gauged supergravity theories that admit metastable de Sitter vacua, generalizing the recent work done in the context of rigid supersymmetry. The…
Metastable spontaneous breaking of N=2 supersymmetry
Benoit Legeret, Claudio A. Scrucca, Paul Smyth
We show that contrary to the common lore it is possible to spontaneously break N=2 supersymmetry even in simple theories without constant Fayet-Iliopoulos terms. We consider the mo…
Metastable de Sitter vacua in N=2 to N=1 truncated supergravity
Francesca Catino, Claudio A. Scrucca, Paul Smyth
We study the possibility of achieving metastable de Sitter vacua in general N=2 to N=1 truncated supergravities without vector multiplets, and compare with the situations arising i…
Scalar geometry and masses in Calabi-Yau string models
Daniel Farquet, Claudio A. Scrucca
We study the geometry of the scalar manifolds emerging in the no-scale sector of Kahler moduli and matter fields in generic Calabi-Yau string compactifications, and describe its im…
The lightest scalar in theories with broken supersymmetry
Leonardo Brizi, Claudio A. Scrucca
We study the scalar mass matrix of general supersymmetric theories with local gauge symmetries, and derive an absolute upper bound on the lightest scalar mass. This bound can be sa…
Sequestering by global symmetries in Calabi-Yau string models
Christopher Andrey, Claudio A. Scrucca
We study the possibility of realizing an effective sequestering between visible and hidden sectors in generic heterotic string models, generalizing previous work on orbifold constr…
Effects of heavy modes on vacuum stability in supersymmetric theories
Leonardo Brizi, Claudio A. Scrucca
We study the effects induced by heavy fields on the masses of light fields in supersymmetric theories, under the assumption that the heavy mass scale is much higher than the supers…
Metastable supersymmetry breaking in N=2 non-linear sigma-models
Jean-Claude Jacot, Claudio A. Scrucca
We perform a general study of the issue of metastability for supersymmetry-breaking vacua in theories with N=1 and N=2 global supersymmetry. This problem turns out to capture all t…
Mildly sequestered supergravity models and their realization in string theory
Christopher Andrey, Claudio A. Scrucca
We elaborate on the idea that five-dimensional models where sequestering is spoiled due to contact interactions induced by vector multiplets may still be mildly sequestered if a gl…
Globally and locally supersymmetric effective theories for light fields
Leonardo Brizi, Marta Gomez-Reino, Claudio A. Scrucca
We reconsider the general question of how to characterize most efficiently the low-energy effective theory obtained by integrating out heavy modes in globally and locally supersymm…
No metastable de Sitter vacua in N=2 supergravity with only hypermultiplets
Marta Gomez-Reino, Jan Louis, Claudio A. Scrucca
We study the stability of vacua with spontaneously broken supersymmetry in N=2 supergravity theories with only hypermultiplets. Focusing on the projection of the scalar mass matrix…
Constructing de Sitter vacua in no-scale string models without uplifting
Laura Covi, Marta Gomez-Reino, Christian Gross +2
We develop a method for constructing metastable de Sitter vacua in N=1 supergravity models describing the no-scale volume moduli sector of Calabi-Yau string compactifications. We c…
Gaugino mass in AdS space
Ben Gripaios, Hyung Do Kim, Riccardo Rattazzi +2
We study supersymmetric QED in AdS4 with massless matter. At 1-loop the ultra-violet regulator of the theory generates a contribution to the gaugino mass that is naively inconsiste…
Constraints on modular inflation in supergravity and string theory
Laura Covi, Marta Gomez-Reino, Christian Gross +3
We perform a general algebraic analysis on the possibility of realising slow-roll inflation in the moduli sector of string models. This problem turns out to be very closely related…
Constraints from F and D supersymmetry breaking in general supergravity theories
Marta Gomez-Reino, Claudio A. Scrucca
We study the conditions under which a generic supergravity model involving chiral and vector multiplets can admit vacua with spontaneously broken supersymmetry and realistic cosmol…
de Sitter vacua in no-scale supergravities and Calabi-Yau string models
Laura Covi, Marta Gomez-Reino, Christian Gross +3
We perform a general analysis on the possibility of obtaining metastable vacua with spontaneously broken N=1 supersymmetry and non-negative cosmological constant in the moduli sect…
Soft masses in superstring models with anomalous U(1) symmetries
Claudio A. Scrucca
We analyze the general structure of soft scalar masses emerging in superstring models involving anomalous U(1) symmetries, with the aim of characterizing more systematically the ci…
Metastable supergravity vacua with F and D supersymmetry breaking
Marta Gomez-Reino, Claudio A. Scrucca
We study the conditions under which a generic supergravity model involving chiral and vector multiplets can admit viable metastable vacua with spontaneously broken supersymmetry an…
Constraints for the existence of flat and stable non-supersymmetric vacua in supergravity
Marta Gomez-Reino, Claudio A. Scrucca
We further develop on the study of the conditions for the existence of locally stable non-supersymmetric vacua with vanishing cosmological constant in supergravity models involving…
Locally stable non-supersymmetric Minkowski vacua in supergravity
Marta Gomez-Reino, Claudio A. Scrucca
We perform a general study about the existence of non-supersymmetric minima with vanishing cosmological constant in supergravity models involving only chiral superfields. We study…
Mediation of supersymmetry breaking in extra dimensions
Claudio A. Scrucca
We review the mechanisms of supersymmetry breaking mediation that occur in sequestered models, where the visible and the hidden sectors are separated by an extra dimension and comm…
Gravitational quantum corrections in warped supersymmetric brane worlds
T. Gregoire, R. Rattazzi, C. A. Scrucca +2
We study gravitational quantum corrections in supersymmetric theories with warped extra dimensions. We develop for this a superfield formalism for linearized gauged supergravity. W…
Anomalies in field theories with extra dimensions
C. A. Scrucca, M. Serone
We give an overview of the issue of anomalies in field theories with extra dimensions. We start by reviewing in a pedagogical way the computation of the standard perturbative gauge…