Draft: First attempt at 2024 ppref mu distribution
This is a first attempt at the mu distribution for the 2024 ppref rerun. A 5% smearing of the 2024 data mu distirnbution is used to produce the quantized version
timestamp and run numners should correspond to those in ATLGBLCONDTAGS-182
tagging @tbold @qhu @jchapman @tadej @wlampl @cdelitzs @schaarsc @mbandier for their information
