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Supersymmetry and R_b in the light of LEP 1.5
J. Ellis, J. Lopez, D. Nanopoulos
We re-examine the possible magnitude of the supersymmetric contribution to in the light of the constraints imposed by the absence of…
A new scenario for string unification
J. Lopez, D. Nanopoulos
We present a new scenario for gauge coupling unification in flipped SU(5) string models, which identifies the scale of SU(3) and SU(2) unification with the empirical $M_{\…
Flipped SU(5): a Grand Unified Superstring Theory (GUST) Prototype
J. Lopez, D. Nanopoulos
In this Lecture we first review the basic properties that make flipped SU(5) a very economical and well motivated unified model, including some recent developments regarding the pr…
Lowering alpha_s by flipping SU(5)
J. Ellis, J. Lopez, D. Nanopoulos
We show that the prediction for in flipped SU(5) is naturally lower than in minimal SU(5), and that the former can accommodate the full range of presently all…
On a possible connection of non-critical strings to certain aspects of quantum brain function
N. E. Mavromatos, D. V. Nanopoulos
We review certain aspects of brain function which could be associated with non-critical (Liouville) string theory. In particular we simulate the physics of brain microtubules (MT)…
Vanishing Str M^2 in the presence of anomalous U_A(1)
J. Lopez, D. Nanopoulos
We show that the presence of an anomalous factor in the gauge group of string-derived models may have the new and important phenomenological consequence of allowing th…