Complex sentence: MINOS released a further result using over double the protons on target (3.36E20 POT which includes the first data set) has further refined the the measurement and is the most precise measurement of Δ "m" 2.
Split into simpler sentences: MINOS released a further result using over twice the previous data (3.36 × 10 20 protons-on-target; this includes the first data set). This is the most precise measurement of Δ "m" 2.