A form of small angle scattering often used in tandem with small angle x-ray scattering uses these particles to analyze structures on the order of nanometers. The asymmetry term in the liquid drop model is taken account when there is an overabundance of these particles. They can be captured rapidly in the R-process or more slowly in the S-process. Magnetars are a class of stars composed of these particles that are kept from collapsing by quantum 
A form of small angle scattering often used in tandem with small angle x-ray scattering uses these particles to analyze structures on the order of nanometers. The asymmetry term in the liquid drop model is taken account when there is an overabundance of these particles. They can be captured rapidly in the R-process or more slowly in the S-process. Magnetars are a class of stars composed of these particles that are kept from collapsing by quantum degeneracy pressure. Control rods are composed of elements that can effectively absorb this particle. In beta minus decay, one of these particles decay into an electron and an electron antineutrino. For 10 points, name this particle discovered by James Chadwick found in the nucleus alongside the proton.
A form of small angle scattering often used in tandem with small angle x-ray scattering uses these particles to analyze structures on the order of nanometers.
neutron