Results 101 to 110 of about 48,288 (217)
Ghostbusters in f (R) supergravity
f (R) supergravity is known to contain a ghost mode associated with higher-derivative terms if it contains R n with n greater than two. We remove the ghost in f (R) supergravity by introducing auxiliary gauge field to absorb the ghost. We dub this method
Toshiaki Fujimori +3 more
doaj +1 more source
Taking limits in topological recursion
Abstract When does topological recursion applied to a family of spectral curves commute with taking limits? This problem is subtle, especially when the ramification structure of the spectral curve changes at the limit point. We provide sufficient (straightforward‐to‐use) conditions for checking when the commutation with limits holds, thereby closing a ...
Gaëtan Borot +4 more
wiley +1 more source
The action of long strings in supersymmetric field theories
Long strings emerge in many Quantum Field Theories, for example as vortices in Abelian Higgs theories, or flux tubes in Yang-Mills theories. The actions of such objects can be expanded in the number of derivatives, around a long straight string solution.
Tomer Solberg, Mykhailo Yutushui
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Swampland geometry and the gauge couplings
The purpose of this paper is two-fold. First we review in detail the geometric aspects of the swampland program for supersymmetric 4d effective theories using a new and unifying language we dub “domestic geometry”, the generalization of special Kähler ...
Sergio Cecotti
doaj +1 more source
Effective potentials for a class of supersymmetric theories
Abstract We compute one- and two-loop corrections to the effective potential for a class of models in which supersymmetry is spontaneously broken in an O'Raifeartaigh model.
Mark Claudson, Mark B. Wise
openaire +1 more source
Modeling General Asymptotic Calabi–Yau Periods
Abstract In the quest to uncovering the fundamental structures that underlie some of the asymptotic Swampland conjectures the authors initiate the general study of asymptotic period vectors of Calabi–Yau manifolds. The strategy is to exploit the constraints imposed by completeness, symmetry, and positivity, which are formalized in asymptotic Hodge ...
Brice Bastian +2 more
wiley +1 more source
Non-factorizable superamplitudes for massive N $$ \mathcal{N} $$ = 1 superstates
In this paper we study non-factorizable N $$ \mathcal{N} $$ = 1 superamplitudes for massive chiral superstates. We demonstrate how little group scaling and the supersymmetric Ward identities determine the form of non-factorizable massless superamplitudes,
Antonio Delgado +2 more
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From linear to non-linear SUSY and back again
We show that couplings of the goldstino field, appearing when global supersymmetry is broken, can always be described in superspace by means of a nilpotent chiral superfield X, satisfying X 2 = 0.
N. Cribiori, G. Dall’Agata, F. Farakos
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Vacuum Stability in Supersymmetric Effective Theories
The main topics discussed in this thesis are supersymmetric low-energy effective theories and metastability conditions in generic non-renormalizable models with global and local supersymmetry. In the first part we discuss the conditions under which the low-energy expansion in space-time derivatives preserves supersymmetry implying that heavy multiplets
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Quantum versus gravitational effects in supersymmetric theories
Abstract We consider what happens when certain globally supersymmetric grand unified models are coupled to N = 1 supergravity. Treating only leading (i.e. tree level) gravitational effects while treating non-gravitational effects to all orders, we show how the original globally supersymmetric theory is recovered as M p → ∞.
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