Tadpole diagram
= Tadpole diagram
A tadpole diagram contains an internal line that begins and ends at the same interaction vertex. In a scalar theory it commonly gives a momentum-independent correction to a mass or lower-order coupling.
= Tadpole diagram
A tadpole diagram contains an internal line that begins and ends at the same interaction vertex. In a scalar theory it commonly gives a momentum-independent correction to a mass or lower-order coupling.