Sure! There is a ton of scientific research around mindfulness, meditation and the brain.
Here are some links to get you started:
Long-term meditators self-induce high-amplitude gamma synchrony during mental practice
Meditation states and traits: EEG, ERP, and neuroimaging studies
Short-term meditation induces changes in brain resting EEG theta networks
Signal Processing and Machine Learning of EEG and Respiration Changes During Mindfulness Meditation State
The Impact of Long-Term Meditation on Attentional Engagement
Meditation experience is associated with differences in default mode network activity and connectivity