IUPAP Working Group 13 (WG13) was created in 2016 for the primary purpose of supporting experimental efforts to measure the Newtonian constant of gravitation, G.

Mission/Mandate

To achieve its goals WG13 will:

  • Provide a group of individuals who are willing to work with experimenters on various technical questions and issues,
  • Convene regular meetings on the subject of G measurements,
  • Serve as a forum to discuss future experiments, proposals and new ideas,
  • Consider and discuss possible mechanisms that might explain the existing discrepancies between at least some of today’s measurements and
  • Evaluate possible strategies for performing G experiments blindly to avoid unconscious bias