1.

GUT scale unification in heterotic strings
/ Angelantonj, Carlo ; Florakis, Ioannis
We present a class of heterotic compactifications where it is possible to lower the string unification scale down to the GUT scale, while preserving the validity of the perturbative analysis. [...]
Published in Physics letters B (2019)
10.1016/j.physletb.2018.12.054
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2.

A string realisation of Ω deformed Abelian N=2⁎ theory
/ Angelantonj, Carlo ; Antoniadis, Ignatios ; Samsonyan, Marine
The N=2⁎ supersymmetric gauge theory is a massive deformation of N=4 , in which the adjoint hypermultiplet gets a mass. [...]
Published in Nuclear Physics B (2017)
10.1016/j.nuclphysb.2017.07.015
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3.

Threshold corrections in heterotic flux compactifications
/ Angelantonj, Carlo ; Israël, Dan ; Sarkis, Matthieu
We compute the oneloop threshold corrections to the gauge and gravitational couplings for a large class of N = 2 $$ \mathcal{N}=2 $$ nonKähler heterotic compactifications with threeform flux, consisting in principal twotorus bundles over K 3 surfaces. [...]
Published in JHEP 1708 (2017) 032
10.1007/JHEP08(2017)032
arXiv:1611.09442
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4.

Generalised universality of gauge thresholds in heterotic vacua with and without supersymmetry
/ Angelantonj, Carlo ; Florakis, Ioannis ; Tsulaia, Mirian
We study oneloop quantum corrections to gauge couplings in heterotic vacua with spontaneous supersymmetry breaking. [...]
Published in Nuclear Physics B (2015)
10.1016/j.nuclphysb.2015.09.007
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5.

Threshold corrections, generalised prepotentials and Eichler integrals
/ Angelantonj, Carlo ; Florakis, Ioannis ; Pioline, Boris
We continue our study of oneloop integrals associated to BPSsaturated amplitudes in N=2 heterotic vacua. [...]
Published in Nuclear Physics B 897 (2015) 781820
10.1016/j.nuclphysb.2015.06.009
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6.

Universality of gauge thresholds in nonsupersymmetric heterotic vacua
/ Angelantonj, Carlo ; Florakis, Ioannis ; Tsulaia, Mirian
We compute oneloop threshold corrections to nonabelian gauge couplings in fourdimensional heterotic vacua with spontaneously broken N=2→N=0 supersymmetry, obtained as Scherk–Schwarz reductions of sixdimensional K3 compactifications. [...]
Published in Physics letters B 736 (2014) 365370
10.1016/j.physletb.2014.08.001
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