In quantum field theory, the pole mass of an elementary particle is the limiting value of the rest mass of a particle as the energy scale of measurement increases.[Michael Peskin and David V. Schroeder, An Introduction to Quantum Field Theory Addison-Weasley, Reading, 1995; see chapter 7, section 1.][Teresa Barillari, Top-quark and top-quark pole mass measurements with the ATLAS detector, arXiv, 2017]
Running mass
In quantum field theory, quantities like coupling constant and
mass "run" with the
energy scale of high energy physics. The running mass of a fermion or massive boson depends on the energy scale at which the observation occurs, in a way described by a renormalization group equation (RGE) and calculated by a renormalization scheme such as the
on-shell scheme or the minimal subtraction scheme. The running mass refers to a Lagrangian parameter whose value changes with the energy scale at which the renormalization scheme is applied. A calculation, typically done by a computerized algorithm and is intractable by paper calculations, relates the running mass to the pole mass. The algorithm typically relies on a perturbative calculation of the
self energy.
See also
