Northwestern University

Mar
12
Mon 3:30 PM

Dan Kaplan: Antimatter Gravity with Muonium

When: Monday, March 12, 2018
3:30 PM - 4:30 PM  

Where: Technological Institute, F160, 2145 Sheridan Road, Evanston, IL 60208 map it

Audience: Faculty/Staff - Student - Public - Post Docs/Docs - Graduate Students

Contact: Pamela Villalovoz   847.491.3644

Group: Physics and Astronomy High Energy Physics Seminars

Category: Academic

Description:

Title: TBA

Speaker: Dan Kaplan, IIT 
 

Abstract: The gravitational acceleration of antimatter, gbar, has yet to be directly measured; an unexpected outcome of its measurement could change our understanding of gravity, the universe, and the possibility of a fifth force. Three avenues are apparent for such a measurement: antihydrogen, positronium, and muonium, the last requiring a precision atom interferometer and novel muonium beam under development. The interferometer and its few-picometer alignment and calibration systems appear feasible. With 100 nm grating pitch, measurements of gbar to 10%, 1%, or better can be envisioned. These could constitute the first gravitational measurements of leptonic matter, of 2nd-generation matter, and possibly, of antimatter.

 

 

Keywords: Physics, Astronomy, HEP

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