# Run 11 polarization decay

For this study we use fills with similar machine conditions:

15365, 15366, 15368, 15372, 15376, 15378, 15380, 15386, 15390, 15393, 15399, 15425, 15427, 15435, 15436, 15438, 15443

# Polarization vs time in fill

The polarization decay reported in the stat box is shown in absolute polarization (%) lost (or gained) per second. To get the number in human format (i.e. absolute polarization percents per hour) one need to multiply the number in the stat box (the "slope" parameter) by 3600.

The zero time 00 in the following plots corresponds to the first measurement in a store.

The average slope for blue ring is 0.3 ± 0.05 %/hour
The average slope for yellow ring is 0.8 ± 0.06 %/hour

Note the not so good ${\displaystyle \chi ^{2}}$ per degree of freedom.

# Relative beam polarization by measurement number in a fill

One should be very careful interpreting these results as there is no guarantee that the sequential number of the measurement is correct.