Semileptonic decay

Semileptonic decay is a type of particle decay process that involves both hadrons (particles composed of quarks, such as baryons and mesons) and leptons (fundamental particles that do not undergo strong interactions, such as electrons, muons, and neutrinos). In a semileptonic decay, one of the hadrons transforms into another hadron, while simultaneously emitting a lepton and a corresponding antiparticle (usually a neutrino).