Constraining spacetime nonmetricity with neutron spin rotation inliquid 4He
Constraining spacetime nonmetricity with neutron spin rotation inliquid 4He
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DOI：
10.1016/j.physletb.2017.07.059
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
RuiXu
中科院分区：
文献类型：
--
作者：
RalfLehnert;W.M.Snow;ZhiXiao;RuiXu
General spacetime nonmetricity coupled to neutrons is studied. In this context, it is shown that certain nonmetricity components can generate a rotation of the neutron’s spin. Available data on this effect obtained from slow-neutron propagation in liquid helium are used to constrain isotropic nonmetricity components at the level of 10−22GeV. These results represent the first limit on the nonmetricity ζ(6)2S000parameter as well as the first measurement of nonmetricity inside matter.
