Tuesday, February 24, 2015

Another Negative Positive Result

A report on the arXiv describes an experiment that searched for “chameleon fields,” a modified gravity theory that seeks to explain dark energy without a cosmological constant. The negative result rules out these fields in a large part of the parameter space, but not all of it.

In our model, dark energy is a true cosmological constant, as I explained here, so for us this result is positive and expected.