Direct measurement of STEP test mass quadrupole moments
نویسندگان
چکیده
A cryogenic torsion balance method is suggested to measure the residual quadrupole moments of the STEP test masses directly. The individual masses are placed on a torsion balance and the torque exerted by a rotating set of source masses is analysed. Conservatively, assuming a torque sensitivity of 10−13 N m, it appears that a quadrupole moment of 10−7 kg m2 can be detected. PACS number: 04.80.−q
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