- #1

arindamsinha

- 181

- 0

**How is the velocity measured?**

For example, Bailey et. al. confirmed SR mathematical predictions in their famous muon ring experiment (1977), which lists the velocity of muons as 0.9994c and corresponding γ as 29.3 with a very high level of accuracy/confidence.

Did they measure the velocity of muons though some "time of flight" mechanism independent of the γ value, or was it derived using the "relativistic velocity equation" from the measured γ (or the known muon energy level for that matter)?

The reason I ask about the accuracy is that the velocity in fact has to be an even more accurate 0.99942c (using SR time dilation equation 1/√(1-v

^{2}/c

^{2})) to arrive at the measured γ of 29.3.

**Even 0.9994c or 0.9995c produces a hugely different γ**at that level of velocity (28.87 and 31.62 respectively!).

Appreciate any answers from anyone who is knowledgeable in this area.