Quantum mechanical particles are classified as bosons or fermions. In quantum mechanics all particles are either bosons or fermions. All elementary particles are either bosons or fermions. One distinguishes bosons (integer spin) and fermions (half-integer spin). Both bosons and fermions can experience the exchange interaction. Creation/annihilation operators are different for bosons (integer spin) and fermions (half-integer spin). Einstein statistics, each applicable to a different class of particles, fermions and bosons. Many other hadrons and massive bosons also decay electromagnetically. It is analogous to the original description of SUSY, which referred to bosons and fermions. These four gauge bosons form the electroweak interaction among elementary particles. Unlike photons, these gauge bosons themselves carry charge. We can imagine a "bosonic Hamiltonian", whose eigenstates are the various bosons of our theory. Another possibility is for the Higgs to split into a pair of massive gauge bosons. Bosons, such as the photon, have symmetric wave functions instead. The forces are transmitted by particles known as gauge bosons.