Lurking beneath Gran Sasso mountain in Italy is a plastic vat containing 62 kg of liquid xenon lined with 178 photomultiplier tubes designed to detect the signature of Weakly Interacting Massive Particles (WIMPs), a leading candidate for Dark Matter. This is the XENON100 Dark Matter Project, and a preprint of a paper announcing initial results has appeared on arXiv.org. The preliminary result? Zilch!
- Dennis Overbye, “Particle Hunt Nets Almost Nothing; the Hunters Are Almost Thrilled” – New York Times
- “Xenon100: Nothing” - Resonaances Particle Theory Blog
- “No WIMPs” – Not Even Wrong
- “The New XENON 100 Results On Dark Matter” - A Quantum Diaries Survivor
- “No Dark Matter Seen by XENON” – Cosmic Variance