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shielded helion gyromagnetic ratio over 2 pi  Value  32.434 099 66 MHz T-1  Standard uncertainty   0.000 000 43 MHz T-1   Relative standard uncertainty   1.3 x 10-8  Concise form  32.434 099 66(43) MHz T-1       Click here for correlation coefficient of this constant with other constants Source: 2014 CODATA      recommended values  Definition of uncertainty       Correlation coefficient with any other constant