activity
19912026
most citedProbing quantum gravity using photons from a flare of the active galactic nucleus Markarian 501 observed by the MAGIC telescope

230 citations · 2k across the 70 of their papers we have counts for

collaborators
Showing 2009 · hep-thShow all

3 papers · 2 filters

hep-th2009★ 28 cited

N=2 SU Quiver with USP Ends or SU Ends with Antisymmetric Matter

Dimitri Nanopoulos, Dan Xie

We consider the four dimensional scale invariant N=2 SU quiver gauge theories with USp(2N) ends or SU(2N) ends with antisymmetric matter representations. We argue that these theori…

hep-th2009

Quark Masses from Gaugino Condensation in String Theories

Christos Kokorelis, Van E. Mayes, Dimitri V. Nanopoulos

We present a mechanism able to generate the perturbatively absent up/down quark Yukawa couplings of SU(5)/flipped SU(5) GUTS in Type II…

hep-th2009★ 76 cited

Time Delays of Strings in D-particle Backgrounds and Vacuum Refractive Indices

Tianjun Li, Nick E. Mavromatos, Dimitri V. Nanopoulos +1

Using standard techniques in string/D-brane scattering amplitude computations, we evaluate the scattering of open strings off D-particles in brane world scenarios. The D-particles…