News & Events

HEPL / KIPAC Seminar

Wednesday, September 23, 2015

Tim Wiser

Stanford Institute for Theoretical Physics

Testing Long-distance Modifications of Gravity to 100 AU

Abstract: There are very few direct experimental tests of the inverse square law of gravity at distances comparable to the scale of the Solar Systemand beyond. Here we describe a possible space mission optimized to test the inverse square law at a scale of up to 100 AU. For example,sensitivity to a Yukawa correction with a strength of10-7times gravity and length scale of 100 AU is within reach, improving the currentstate of the art by over two orders of magnitude.

This experiment would extend our understanding of gravity to the largest scale that can be reached with a direct probe using known technology. This would provide a powerful test of long-distance modifications of gravity, including many theories motivated by dark matter or dark energy.

Bio: Not Available

Time: 4:00pm – 5:00pm

Location: Physics/Astrophysics Bldg., Kistler Conference Rooms 102/103 (Map)

(Light refreshments available 3:45pm; Presentation begins at 4:00pm)

Open to All