In the experiment you mentioned, where a bowling ball falls with the same speed as a feather in a vacuum, the reason the bowling ball slows down is not due to its interaction with the Higgs field.
The experiment you are referring to is commonly conducted in a vacuum to eliminate the effects of air resistance. In the absence of air resistance, both the bowling ball and the feather experience the same gravitational acceleration due to Earth's gravity. This acceleration is solely determined by the mass of the objects and the strength of the gravitational field.
The Higgs field, on the other hand, is a fundamental field in particle physics that gives mass to elementary particles, such as quarks and leptons. It does not directly influence the motion of macroscopic objects like a bowling ball.
The reason the feather falls more slowly in the presence of air is due to air resistance. Air molecules interact with the feather and create drag, which opposes its motion and causes it to fall at a slower rate compared to a dense object like a bowling ball. In a vacuum, where there is no air resistance, both objects would fall with the same acceleration.
It's important to note that the interaction between macroscopic objects and the Higgs field is not significant in everyday scenarios. The effects of the Higgs field are typically observed and studied at the subatomic scale within the framework of particle physics.