New Large Hadron Collider Discovery: Measurement of Predicted Particle Decay With Implications for Dark Matter Search

New Large Hadron Collider Discovery: Measurement of Predicted Particle Decay With Implications for Dark Matter Search

July 19, 2013 — A discovery facilitated by Rice University's contribution to the Large Hadron Collider (LHC) will impact scientists' search for dark matter in the universe.

CERN, the European Organization for Nuclear Research, announced in Switzerland this morning that researchers on two separate LHC experiments have succeeded in measuring "one of the rarest measurable processes in physics," the decay of B-subscript-s mesons into two muons. The evidence, which scientists have been seeking for 25 years, matches predictions made using the Standard Model of Particle Physics.

That match, with only a 1-in-100,000 chance of being caused by a statistical error, virtually eliminates any possibility that B-sub-s meson decay is related to interaction with particles predicted by dark matter theories, as some physicists have suspected.

http://www.sciencedaily.com/releases/2013/07/130719135959.htm

By: admin
Date: Tue, 2013-07-23 14:32