Experiments refute dark matter claim

The doctoral thesis of Sophia Hollick, Ph.D. '25, a recent graduate of Yale's Wright Lab in professor Reina Maruyama's group, has significantly contributed to answering a decades-long question in her field about whether or not a signal observed in an experiment that has taken data since 1997 was indicative of a direct detection of dark matter. The results of her analysis, which have excluded the dark matter explanation with greater confidence, were published in Physics Review Letters...