COSMIC-312, a disappointing result—is that so surprising?

Why Have Climate Negotiations Proved So Disappointing?

Microphysics of SO(10) Cosmic Strings

We uncover a rich microphysical structure for SO(10) cosmic strings. For the abelian string the electroweak symmetry is restored around it in a region depending on the electroweak scale. A rich structure of nonabelian strings is found. Some of these also restore the electroweak symmetry. We investigate the zero mode structure of our strings. Whilst there are right handed neutrino zero modes for...

The Surprising Success of a Replication That Failed

In a recent paper, Oliver Will (2009) contends that the effect of mobility on trust that we originally reported ( Macy and Sato 2002) depends on 'an assumption that is most probably an unwilling, unintended, and unwanted implication of the code.' When we experimented with Will's revised model, we came to the opposite conclusion: his version provides stronger support for our theory than does our...

SO(10) cosmic strings and SU(3)color Cheshire charge.

Certain cosmic strings that occur in GUT models such as SO(10) can carry a magnetic flux which acts nontrivially on objects carrying SU(3)color quantum numbers. We show that such strings are non-Abelian Alice strings carrying nonlocalizable colored “Cheshire” charge. We examine claims made in the literature that SO(10) strings can have a long-range, topological Aharonov-Bohm interaction that tu...

Supersymmetric SO(10) model with inflation and cosmic strings.

We have built a supersymmetric SO(10) model consistent with cosmological observations. The model gives rise to a false vacuum hybrid inflationary scenario which solves the monopole problem. We argue that this type of inflationary scenario is generic in supersymmetric SO(10) model, and arises naturally from the theory. Neither any external field nor any external symmetry has to be added. It can ...