Lepton Bremsstrahlung at Low Energies

The cross section for the lepton–proton bremsstrahlung process l + p → l ′ + p + γ is calculated in effective field theory. This process is an undetected background process for the proposed MUSE experiment, which aim is to extract a precise value for the proton’s r.m.s. radius. We show that the comm...

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Bibliographic Details
Published in:Few-body systems 2018-07, Vol.59 (4), p.1-10, Article 62
Main Authors: Myhrer, F., Talukdar, P., Raha, U.
Format: Article
Language:English
Subjects:
Atomic
Bremsstrahlung
Cross-sections
Elastic scattering
Field theory
Hadrons
Heavy Ions
Kinematics
Leptons
Molecular
NSTAR 2017
Nuclear Physics
Optical and Plasma Physics
Particle and Nuclear Physics
Physics
Physics and Astronomy
Proton scattering
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Summary:The cross section for the lepton–proton bremsstrahlung process l + p → l ′ + p + γ is calculated in effective field theory. This process is an undetected background process for the proposed MUSE experiment, which aim is to extract a precise value for the proton’s r.m.s. radius. We show that the commonly used peaking approximation, which is used to evaluate the radiative tail for the elastic cross section, is not applicable for muon proton scattering at MUSE kinematics. In addition, we correct a misprint in a commonly cited review article.
ISSN:0177-7963
1432-5411
DOI:10.1007/s00601-018-1388-5