Recent results on short-range gravity experiment

According to the ADD model [1], deviation from Newton's inverse square law is expected at below sub-millimeter scale. Present study is an experimental investigation of the Newton's gravitational law at a short range scale. We have developed an experimental setup using torsion balance bar,...

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Bibliographic Details
Published inJournal of physics. Conference series Vol. 189; no. 1; p. 012019
Main Authors Hata, Maki, Akiyama, Takashi, Ikeda, Yuki, Kawamura, Hirokazu, Narita, Keigo, Ninomiya, Kazufumi, Ogawa, Naruya, Sato, Toshiaki, Seitaibashi, Etsuko, Sekiguchi, Yuta, Tsutsui, Ryosuke, Yazawa, Kazumasa, Murata, Jiro
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.10.2009
Subjects
Balances (scales)
Equivalence principle
Gravitational constant
Physics
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Summary:According to the ADD model [1], deviation from Newton's inverse square law is expected at below sub-millimeter scale. Present study is an experimental investigation of the Newton's gravitational law at a short range scale. We have developed an experimental setup using torsion balance bar, and succeeded to confirm the inverse square law at a centimeter scale. In addition, composition dependence of gravitational constant G is also tested at the centimeter scale, motivated to test the weak equivalence principle.
ISSN:1742-6596
1742-6588
1742-6596
DOI:10.1088/1742-6596/189/1/012019