Table 1 The experimental parameters and their error budget for the coupling coefficient

From: Constraints on exotic spin-velocity-dependent interactions

Parameter

Value

\({{\Delta }}{f}_{4+5}^{\exp}\)(×10−21)a

W–Al ring R (m)

0.475 ± 0.001

<0.001

Ring to cell center X (m)

0.478 ± 0.002

0.002

Ring to cell center Y (m)

0.000 ± 0.002

<0.001

Ring to cell center Z (m)

0.000 ± 0.002

<0.001

W–Al ring M (kg)

15.38 ± 0.05

0.001

\({\omega }_{\max }\) (rad/s)

3.774 ± 0.001

<0.001

Calibrated κn (μV/fT)

1.67 ± 0.05

0.016

Modulation freq. (Hz)

0.8369 ± 0.0001

 

Phase shift (deg)

−67∘ ± 2∘

<0.001

Final \({f}_{4+5}^{\exp }\)

−0.54

±0.02 (syst.)

(λ = 10  m)

 

±1.62 (stat.)b

  1. aThe contribution to the error budget of \({f}_{4+5}^{n}\) at λ = 10 m
  2. bError contribution from the uncertainties of the parameters listed above.
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