Spin-dependent macroscopic forces from new particle exchange
Spin-dependent macroscopic forces from new particle exchange
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DOI：
10.1088/1126-6708/2006/11/005
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发表时间：
2006-11-01
影响因子：
5.4
通讯作者：
Mocioiu, Irina
中科院分区：
文献类型：
--
作者：
Dobrescu, Bogdan A.;Mocioiu, Irina
宏观物体之间的长程力由与电子或核子相互作用的轻粒子介导，包括自旋相关的静态分量以及自旋和速度相关的分量。我们参数化的两个费米子之间的长程势假设旋转不变性，并找到16个不同的组件。将这一结果应用于电中性物体，我们证明了宏观势依赖于72个可测参数。然后，我们推导出一个新的规范玻色子或无自旋粒子的交换所引起的潜在的，并比较的限制所设置的宏观力的测量这些粒子的耦合的天体物理极限。
Long-range forces between macroscopic objects are mediated by light particles that interact with the electrons or nucleons, and include spin-dependent static components as well as spin- and velocity-dependent components. We parametrize the long-range potential between two fermions assuming rotational invariance, and find 16 different components. Applying this result to electrically neutral objects, we show that the macroscopic potential depends on 72 measurable parameters. We then derive the potential induced by the exchange of a new gauge boson or spinless particle, and compare the limits set by measurements of macroscopic forces to the astrophysical limits on the couplings of these particles.