The SLAC bag model is a simple theoretical model for a possible structure for

hadron In particle physics, a hadron is a composite subatomic particle made of two or more quarks held together by the strong nuclear force. Pronounced , the name is derived . They are analogous to molecules, which are held together by the electri ...

s. The

MIT bag model In physics and chemistry, a nucleon is either a proton or a neutron, considered in its role as a component of an atomic nucleus. The number of nucleons in a nucleus defines the atom's mass number. Until the 1960s, nucleons were thought to be ele ...

is another similar model. The "SLAC" in the name stands for

Stanford Linear Accelerator Center SLAC National Accelerator Laboratory, originally named the Stanford Linear Accelerator Center, is a Federally funded research and development centers, federally funded research and development center in Menlo Park, California, Menlo Park, Ca ...

. The chiral bag model is a variant of the MIT bag model that couples pions to the bag boundary, with the pion field being modeled by the

skyrmion In particle theory, the skyrmion () is a topologically stable field configuration of a certain class of non-linear sigma models. It was originally proposed as a model of the nucleon by (and named after) Tony Skyrme in 1961. As a topological solito ...

. In this model, the boundary condition is that the axial vector current is continuous across the boundary, with free (non-interacting) quarks on the inside, obeying the boundary condition.

References

Particle physics {{nuclear-stub

See also

References