3 papers
astro-ph2001
Cracking Open the Window for Strongly Interacting Massive Particles as the Halo Dark Matter
Patrick C. McGuire, Paul J. Steinhardt
In the early 1990's, an analysis was completed by several theorists of the available mass/cross-section parameter space for unusual particle candidates to solve the dark matter pro…
hep-th2001
A Brief Comment on "The Pyrotechnic Universe"
Justin Khoury, Burt A. Ovrut, Paul J. Steinhardt +1
We respond to the criticisms by Kallosh, Kofman and Linde concerning our proposal of the ekpyrotic universe scenario. We point out a number of errors in their considerations and ar…
astro-ph1995
Cosmic Concordance
J. P. Ostriker, Paul J. Steinhardt
Observational constraints guide one forcefully to examine models in which the matter density is substantially less than critical density. Particularly noteworthy are those which ar…