title: Accurate mass determinations in decay chains with missing energy.
abstract: Many beyond the standard model theories include a stable dark matter candidate that yields missing or invisible energy in collider detectors. If observed at the CERN Large Hadron Collider, we must determine if its mass and other properties (and those of its partners) predict the correct dark matter relic density. We give a new procedure for determining its mass with small error.
authors.affiliation: Department of Physics, University of California, Davis, California 95616, USA.
authors.forename: Hsin-Chia
authors.initials: HC
authors.lastname: Cheng
authors.forename: Dalit
authors.initials: D
authors.lastname: Engelhardt
authors.forename: John F
authors.initials: JF
authors.lastname: Gunion
authors.forename: Zhenyu
authors.initials: Z
authors.lastname: Han
authors.forename: Bob
authors.initials: B
authors.lastname: McElrath