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Symmetry Breaking and Reheating after Inflation in No-Scale Flipped SU(5)
John Ellis, Marcos A. G. Garcia, Natsumi Nagata +2
No-scale supergravity and the flipped SU(5)U(1) gauge group provide an ambitious prototype string-inspired scenario for physics below the string scale, which can accommodat…
A General Classification of Starobinsky-like Inflationary Avatars of SU(2,1)/SU(2) x U(1) No-Scale Supergravity
John Ellis, Dimitri V. Nanopoulos, Keith A. Olive +1
Measurements of the cosmic microwave background (CMB) favour models of inflation with a small tensor-to-scalar ratio r, as predicted by the Starobinsky R + R^2 model. It has been s…
Constraining D-foam via the 21-cm Line
John Ellis, Nick E. Mavromatos, Dimitri V. Nanopoulos
We have suggested earlier that D-particles, which are stringy space-time defects predicted in brane-inspired models of the Universe, might constitute a component of dark matter, an…
De Sitter Vacua in No-Scale Supergravity
John Ellis, Balakrishnan Nagaraj, Dimitri V. Nanopoulos +1
No-scale supergravity is the appropriate general framework for low-energy effective field theories derived from string theory. The simplest no-scale Kähler potential with a single…
Inspiration from Intersecting D-branes: General Supersymmetry Breaking Soft Terms in No-Scale -
Ron De Benedetti, Chuang Li, Tianjun Li +3
Motivated by D-brane model building, we evaluate the - model with additional vector-like particle multiplets, referred to as flippons, within the framework of No-Sc…