Neutrinos are interacting with ordinary matter weakly. They pass through matter mostly unimpeded.
Thus, neutrinos typically pass through normal matter unimpeded and undetected. Neutrinos' low mass and neutral charge mean they interact exceedingly weakly with other particles and fields. This feature of weak interaction interests scientists because it means neutrinos can be used to probe environments that other radiation (such as light or radio waves) cannot penetrate. Using neutrinos as a probe was first proposed in the mid-20th century as a way to detect conditions at the core of the Sun. The solar core cannot be imaged directly because electromagnetic radiation (such as light) is diffused by the great amount and density of matter surrounding the core. On the other hand, neutrinos pass through the Sun with few interactions.
Based on this, neutrinos interact with matter they pass through, just very weakly, and with few interactions.
This could mean they lose some energy as they pass through matter and interact with it weakly with few interactions.
I am curius as how we exactly can probe the core of the Sun when neutrinos only interact weakly. Do they lose any energy through this process or how do we use them?
- How do we exactly use neutrinos to probe the core of the Sun (if they can only interact weakly)?