Publications by authors named "Devin G E Walker"
Article Synopsis
- * The research addresses the "Why now?" question about the recent acceleration of the universe's expansion by suggesting a random onset of dark-energy dominance over time.
- * With a modified axion potential, the need for quick decay of many axion fields is removed, leading to a universe similar to ours being one of about 100 possible universes, with potential observable consequences.
We study top-quark pair production to probe new physics at the CERN Large Hadron Collider. We propose reconstruction methods for tt[over] semileptonic events and use them to reconstruct the tt[over] invariant mass. The angular distribution of top quarks in their c.
View Article and Find Full Text PDFWarped string compactifications, characterized by the nonsingular behavior of the metric in the infrared (IR), feature departures from the usual anti-de Sitter warped extra dimensions. We study the implications of the smooth IR cutoff for Randall-Sundrum- (RS-)type models. We find that the phenomenology of the Kaluza-Klein gravitons (including their masses and couplings) depends sensitively on the precise shape of the warp factor in the IR.
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