Modular forms and hierarchical Yukawa couplings in heterotic Calabi-Yau compactifications
Journal of High Energy PhysicsWe study the modular symmetry in heterotic string theory on Calabi-Yau threefolds. In particular, we examine whether moduli-dependent holomorphic Yukawa couplings are described by modular forms in the context of heterotic string theory with standard ...
Keiya Ishiguro +3 more
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Singular lensing from the scattering on special space-time defects. [PDF]
Eur Phys J C Part Fields, 2018 Mavromatos NE, Papavassiliou J.
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Quark masses and mixing in string-inspired models
Journal of High Energy PhysicsWe study a class of supersymmetric Froggatt-Nielsen (FN) models with multiple U(1) symmetries and Standard Model (SM) singlets inspired by heterotic string compactifications on Calabi-Yau threefolds.
Andrei Constantin +4 more
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Light and compressed gluinos at the LHC via string theory. [PDF]
Eur Phys J C Part Fields, 2017 AbdusSalam SS.
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Confined monopoles and failure of the Lattice Weak Gravity Conjecture
Journal of High Energy PhysicsAlmost all known theories of quantum gravity satisfy the Lattice Weak Gravity Conjecture (LWGC), which posits that a consistent theory of quantum gravity must have a superextremal particle at every site in the charge lattice.
Muldrow Etheredge +5 more
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Graviton propagation within the context of the D-material universe. [PDF]
Eur Phys J C Part Fields, 2017 Elghozi T +2 more
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Non-invertible selection rules on heterotic non-Abelian orbifolds
Journal of High Energy PhysicsWe investigate coupling selection rules in heterotic string theory on non-Abelian orbifolds. Since boundary conditions on the orbifolds are classified by conjugacy classes of space group elements, non-Abelian orbifolds give rise to non-invertible ...
Tatsuo Kobayashi +2 more
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On the possibility of tree-level leptogenesis from Kalb-Ramond torsion background. [PDF]
Eur Phys J C Part Fields, 2015 de Cesare M, Mavromatos NE, Sarkar S.
europepmc +1 more source
Leptogenesis from heavy right-handed neutrinos in CPT violating backgrounds. [PDF]
Eur Phys J C Part Fields, 2018 Bossingham T, Mavromatos NE, Sarkar S.
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Monopole production via photon fusion and Drell-Yan processes: MadGraph implementation and perturbativity via velocity-dependent coupling and magnetic moment as novel features. [PDF]
Eur Phys J C Part Fields, 2018 Baines S +4 more
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