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5 papers · 2 filters
Detailed Stability Analysis of Electroweak Strings
Margaret James, Leandros Perivolaropoulos, Tanmay Vachaspati
We give a detailed stability analysis of the Z-string in the standard electroweak model. We identify the mode that determines the stability of the string and numerically map the re…
Bound States Can Stabilize Electroweak Strings
Tanmay Vachaspati, Richard Watkins
We show that the electroweak string can be stabilized by the presence of bound states of a complex scalar field. We argue that fermions coupled to the scalar field of the strin…
Metastable Cosmic Strings in Realistic Models
R. Holman, S. D. H. Hsu, T. Vachaspati +1
We investigate the stability of the electroweak Z-string at high temperatures. Our results show that while finite temperature corrections can improve the stability of the Z-string,…
Black Holes from Nucleating Strings
Jaume Garriga, Alexander Vilenkin
We evaluate the probability that a loop of string that has spontaneously nucleated during inflation will form a black hole upon collapse, after the end of inflation. We then use th…
On Observing Top Quark Production at the Tevatron
Gary R. Goldstein, K. Sliwa, R. H. Dalitz
A technique for separating top quark production from Standard Model background events is introduced. It is applicable to the channel in which one top quark decays semi-leptonically…