Equivalence Principle precision

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The discussion focuses on comparing two tables related to the Equivalence Principle, specifically their precision in experimental results. The first table presents dimensionless percentages known as the Eötvös parameter, while the second table uses values expressed in GeV, which can also be interpreted as percentages when considering the mass of protons and neutrons. To convert the second table values into ratios, one needs to divide by the mass of the relevant particle, such as the electron, to express them in percentage terms. There is confusion regarding the appropriate unit of measure for the first table and how to effectively compare it with the second. Understanding these conversions is crucial for accurate analysis of the experimental data.
jumpjack
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I found 2 tables describing raising precision in experiments performed to investigate Equivalence Principle:
http://en.wikipedia.org/wiki/Equivalence_principle#Tests_of_the_weak_equivalence_principle
http://en.wikipedia.org/wiki/Hughes–Drever_experiment#Modern_experiments

I can't understand how to compare the two tables: is that possible? If second one is expressed in GeV, in which unit of measure is the first expressed? Is it just an adimensional ratio?
 
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Numbers in the first table are dimensionless percentages, what he calls the Eotvos parameter.
Numbers in the second table give a fraction of a GeV, but since the mass of protons and neutrons is approximately a GeV, they may be regarded as percentages too. For the electron column you'll have to divide by the electron mass to get a percentage.
 
Sorry but I can't yet understand.
How can I convert second table values into ratios? By dividing by c^2?
 
Topic about reference frames, center of rotation, postion of origin etc Comoving ref. frame is frame that is attached to moving object, does that mean, in that frame translation and rotation of object is zero, because origin and axes(x,y,z) are fixed to object? Is it same if you place origin of frame at object center of mass or at object tail? What type of comoving frame exist? What is lab frame? If we talk about center of rotation do we always need to specified from what frame we observe?

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