Advanced search    

Search: authors:"E. Dell’Aquila"

8 papers found.
Use AND, OR, NOT, +word, -word, "long phrase", (parentheses) to fine-tune your search.

Modular and duality properties of surface operators in \( \mathcal{N}={2}^{\star } \) gauge theories

geometry from the toroidal block, JHEP 08 (2014) 117 [arXiv:1404.7378] [INSPIRE]. [38] S.K. Ashok, M. Billo`, E. Dell’Aquila, M. Frau, A. Lerda and M. Raman, Modular anomaly equations and S-duality in N = 2 ... conformal SQCD, JHEP 10 (2015) 091 [arXiv:1507.07476] [INSPIRE]. [39] S.K. Ashok, E. Dell’Aquila, A. Lerda and M. Raman, S-duality, triangle groups and modular anomalies in N = 2 SQCD, JHEP 04 (2016) 118

Chiral observables and S-duality in \( \mathcal{N} \) = 2⋆ U(N ) gauge theories

We study \( \mathcal{N} \) = 2⋆ theories with gauge group U(N ) and use equivariant localization to calculate the quantum expectation values of the simplest chiral ring elements. These are expressed as an expansion in the mass of the adjoint hypermultiplet, with coefficients given by quasi-modular forms of the S-duality group. Under the action of this group, we construct ...

S-duality, triangle groups and modular anomalies in \( \mathcal{N}=2 \) SQCD

We study \( \mathcal{N}=2 \) superconformal theories with gauge group SU(N ) and 2N fundamental flavours in a locus of the Coulomb branch with a \( {\mathbb{Z}}_N \) symmetry. In this special vacuum, we calculate the prepotential, the dual periods and the period matrix using equivariant localization. When the flavors are massless, we find that the period matrix is completely ...

Modular anomaly equations and S-duality in \( \mathcal{N}=2 \) conformal SQCD

We use localization techniques to study the non-perturbative properties of an \( \mathcal{N}=2 \) superconformal gauge theory with gauge group SU(3) and six fundamental flavours. The instanton corrections to the prepotential, the dual periods and the period matrix are calculated in a locus of special vacua possessing a ℤ 3 symmetry. In a semiclassical expansion, we show that these ...

Different chromatin and energy/redox responses of mouse morulae and blastocysts to slow freezing and vitrification

Background The ability to cryopreserve mammalian embryos has become an integral part of assisted reproduction, both in human and veterinary medicine. Despite differences in the size and physiological characteristics of embryos from various species, the embryos have been frozen by either of two procedures: slow freezing or vitrification. The aim of our study was to compare the ...

Effect of holding equine oocytes in meiosis inhibitor-free medium before in vitro maturation and of holding temperature on meiotic suppression and mitochondrial energy/redox potential

Background Evaluation of mitochondrial function offers an alternative to evaluate embryo development for assessment of oocyte viability, but little information is available on the relationship between mitochondrial and chromatin status in equine oocytes. We evaluated these parameters in immature equine oocytes either fixed immediately (IMM) or held overnight in an Earle’s/Hank’s’ ...

Vitrification preserves chromatin integrity, bioenergy potential and oxidative parameters in mouse embryos

Background The aim of this study was to evaluate the effects of vitrification on morpho-functional parameters (blastomere/chromatin integrity and bioenergy/oxidative potential) of mouse preimplantation embryos. Methods In vivo produced mouse (4/16-cell, morulae and blastocyst-stage) embryos were randomly divided into vitrification and control groups. For vitrification, embryos were ...

Confocal fluorescence assessment of bioenergy/redox status of dromedary camel (Camelus dromedarius) oocytes before and after in vitro maturation

Background Reproductive biotechnologies in dromedary camel (Camelus dromedarius) are less developed than in other livestock species. The in vitro maturation (IVM) technology is a fundamental step for in vitro embryo production (IVP), and its optimization could represent a way to increase the success rate of IVP. The aim of the present study was to investigate the ...