TY - JOUR
T1 - Radiative corrections to real and virtual muon Compton scattering revisited
AU - Kaiser, N.
PY - 2010/6
Y1 - 2010/6
N2 - We calculate in closed analytical form the one-photon loop radiative corrections to muon Compton scattering μ-γ→μ-γ. Ultraviolet and infrared divergences are both treated in dimensional regularization. Infrared finiteness of the (virtual) radiative corrections is achieved (in the standard way) by including soft photon radiation below an energy cut-off λ. We find that the anomalous magnetic moment α/2π provides only a very small portion of the full radiative corrections. Furthermore, we extend our calculation of radiative corrections to the muon-nucleus bremsstrahlung process (or virtual muon Compton scattering μ-γ0*→μ-γ). These results are particularly relevant for analyzing the COMPASS experiment at CERN in which muon-nucleus bremsstrahlung serves to calibrate the Primakoff scattering of high-energy pions off a heavy nucleus with the aim of measuring the pion electric and magnetic polarizabilities. We find agreement with an earlier calculation of these radiative corrections based on a different method.
AB - We calculate in closed analytical form the one-photon loop radiative corrections to muon Compton scattering μ-γ→μ-γ. Ultraviolet and infrared divergences are both treated in dimensional regularization. Infrared finiteness of the (virtual) radiative corrections is achieved (in the standard way) by including soft photon radiation below an energy cut-off λ. We find that the anomalous magnetic moment α/2π provides only a very small portion of the full radiative corrections. Furthermore, we extend our calculation of radiative corrections to the muon-nucleus bremsstrahlung process (or virtual muon Compton scattering μ-γ0*→μ-γ). These results are particularly relevant for analyzing the COMPASS experiment at CERN in which muon-nucleus bremsstrahlung serves to calibrate the Primakoff scattering of high-energy pions off a heavy nucleus with the aim of measuring the pion electric and magnetic polarizabilities. We find agreement with an earlier calculation of these radiative corrections based on a different method.
KW - Muon Compton scattering
KW - Muon-nucleus bremsstrahlung
KW - Radiative corrections
UR - http://www.scopus.com/inward/record.url?scp=77950948324&partnerID=8YFLogxK
U2 - 10.1016/j.nuclphysa.2010.02.008
DO - 10.1016/j.nuclphysa.2010.02.008
M3 - Article
AN - SCOPUS:77950948324
SN - 0375-9474
VL - 837
SP - 87
EP - 109
JO - Nuclear Physics, Section A
JF - Nuclear Physics, Section A
IS - 1-2
ER -