DETERMINATION OF THE GRAVITATIONAL CONSTANT AT AN EFFECTIVE INTERACTION DISTANCE OF 112 M

被引：19

作者：

CORNAZ, A

HUBLER, B

KUNDIG, W

机构：

[1] Physik-Institut, Universität Zürich

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 72卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.72.1152

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The Newtonian gravitational constant has been determined at an effective interaction distance of 112 m. A high-precision balance was used to compare the weights of two 1-kg stainless steel masses located above and below the variable water level of a pumped-storage lake. Water-level changes up to 43 m produced a maximum weight difference of 1290 mu g, which could be measured with a resolution of < 1 mu g. The data yield a value for the gravitational constant G of (6.6700 +/- 0.0054) x 10(-11) m(3) kg(-1) s(-2) (1 sigma), in agreement with laboratory determinations. New limits for the strength of possible new intermediate-range forces are placed.

引用

页码：1152 / 1155

页数：4

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