32 papers
A 6-D Brane World Model
Panagiota Kanti, Richard Madden, Keith A. Olive
We consider a 6D space-time which is periodic in one of the extra dimensions and compact in the other. The periodic direction is defined by two 4-brane boundaries. Both static and…
Numerical Black Hole Interiors and String Cosmology Initial Conditions
Richard Madden
Recent work has proposed the principle of `asymptotic past triviality' to characterize the initial state in the pre-big bang scenario of string cosmology, that it is a generic pert…
Limits on Anomalous WWgamma and WWZ Couplings from WW/WZ->enujj Production
D0 collaboration, B. Abbott, M. Abolins
Limits on anomalous WWgamma and WWZ couplings are presented from a study of WW/WZ->enujj events in ppbar collisions at sqrt{s}=1.8 TeV. Results from the analysis of data collected…
The graceful exit in pre-big bang string cosmology
C. Cartier, E. J. Copeland, R. Madden
We re-examine the graceful exit problem in the pre-big bang scenario of string cosmology, by considering the most general time-dependent classical correction to the Lagrangian with…
Evidence of Color Coherence Effects in W+jets Events from ppbar Collisions at sqrt(s) = 1.8 TeV
D0 Collaboration, B. Abbott
We report the results of a study of color coherence effects in ppbar collisions based on data collected by the D0 detector during the 1994-1995 run of the Fermilab Tevatron Collide…
Back-Reaction to Dilaton-Driven Inflation
A. Ghosh, R. Madden, G. Veneziano
We compute the leading-order back-reaction to dilaton-driven inflation, due to graviton, dilaton and gauge-boson production. The one-loop effect turns out to be non-vanishing (unli…