The resonant interaction of a bunched particle beam with short-range wakefields is the cause of head-tail instability. which is a major limitation for single-bunch beam intensity in circular accelerators. There are several processes that suppress this type of instability. such as fast chromatic damping and Landau damping due to machine nonlinearity. https://parisnaturalfoodes.shop/product-category/aloe-shave-cream-dusk/