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Precise Gravitational Tests via the SEE Mission: A Proposal for Space-Based Measurements

2010/05/20 by Alvin J. Sanders, George T. Gillies, G. T. Gillies +2
Earth and Planetary Sciences · Physics and Astronomy · #Cosmology and Gravitation Theories #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #Geophysics and Gravity Measurements #Relativity and Gravitational Theory #gr-qc

paper · pdf · doi:10.48550/arxiv.1005.3722

Presented at the 2004 Pescara Meeting on Tests of the Equivalence Principle

arxiv created 2010/05/20 · openalex publication_date 2010/05/20 · arxiv updated 2010/05/21 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

The objective of a SEE mission is to support development of unification theory by carrying out sensitive gravitational tests capable of determining whether various alternative theories are compatible with nature. Gravitation is a key "missing link" in unification theory. Nearly all unification theories incorporate gravity at a fundamental level, and therefore precise measurements of gravitational forces will place important constraints on unification theories. Ground-based gravitational measurements to the accuracy required are impossible due to the many sources of noise present in the terrestrial environment. The proposed space-based Satellite Energy Exchange (SEE) mission will measure several important parameters to an accuracy between 100 and 10,000 times better than current or planned measurement capabilities. It will test for time variation of the gravitational "constant" G and for violations of the weak equivalence principle (WEP) and the inverse-square-law (ISL), and it will determine G. It is well-known that the discovery of breakdowns in WEP or ISL and the possible determination of a time-varying G would have significant consequences on virtually all aspects of unification theory.

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