New constraints on short-range forces coupling mass to intrinsic spin

被引：64

作者：

Hammond, Giles D. ^{[1
]}

Speake, Clive C. ^{[1
]}

Trenkel, Christian ^{[1
]}

Paton, Antonio Pulido ^{[1
]}

机构：

[1] Univ Birmingham, Sch Phys & Astron, Birmingham B15 2TT, W Midlands, England

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 98卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.98.081101

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A new device that we refer to as the spherical superconducting torsion balance has been used to search for a new force coupling mass to intrinsic spin. Our experimental approach also employs a novel spin-source geometry that allows unprecedented sensitivity in the range 100 mu m <lambda < 5 mm. We place new limits on the dimensionless coupling constant of such an interaction of g(p)(e)g(s)<(-1.9 +/-(1.3)(stat)+/-(1.5)(syst))x10(-26) for lambda > 10 mm at 1 sigma confidence. At a range of 1 mm our most relaxed limit is g(p)(e)g(s)< 1.5x10(-24).

引用

页数：4

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