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Tests of the gravitational inverse-square law below the dark-energy length scale.
We conducted three torsion-balance experiments to test the gravitational inverse-square law at separations between 9.53 mm and 55 microm, probing distances less than the dark-energy length scaleExpand
Submillimeter test of the gravitational inverse-square law: a search for "large" extra dimensions.
Motivated by higher-dimensional theories that predict new effects, we tested the gravitational 1/r(2) law at separations ranging down to 218 microm using a 10-fold symmetric torsion pendulum and aExpand
The Apache Point Observatory Lunar Laser-ranging Operation: Instrument Description and First Detections
A next-generation lunar laser-ranging apparatus using the 3.5 m telescope at the Apache Point Observatory in southern New Mexico has begun science operation. The Apache Point Observatory LunarExpand
Sub-millimeter tests of the gravitational inverse-square law
Motivated by a variety of theories that predict new effects, we tested the gravitational ${1/r}^{2}$ law at separations between 10.77 mm and $137\ensuremath{\mu}\mathrm{m}$ using two differentExpand
Measurement of the Positive Muon Anomalous Magnetic Moment to 0.46 ppm.
We present the first results of the Fermilab National Accelerator Laboratory (FNAL) Muon g-2 Experiment for the positive muon magnetic anomaly a_{μ}≡(g_{μ}-2)/2. The anomaly is determined from theExpand
The lunar-ranging test of the equivalence principle for gravitational self-energy is ambiguous. Although the Earth has more gravitational self-energy than the Moon, its sizable Fe/Ni core also givesExpand
APOLLO: millimeter lunar laser ranging
Lunar laser ranging (LLR) has for decades stood at the forefront of tests of gravitational physics, including tests of the equivalence principle (EP). Current LLR results on the EP achieve aExpand
Short-range tests of the equivalence principle
The most precise tests of the equivalence principle, the underlying symmetry of general relativity, are made by comparing the accelerations of test bodies toward a massive attractor. The equivalenceExpand
Laser ranging to the lost Lunokhod 1 reflector
Abstract In 1970, the Soviet Lunokhod 1 rover delivered a French-built laser reflector to the Moon. Although a few range measurements were made within three months of its landing, theseExpand
Torsion Balance Test of Spin Coupled Forces
The extraordinary sensitivity of the torsion balance has made it a valuable tool to test symmetries in nature and to search for new weak macroscopic forces. Most torsion balance experiments employExpand