Estimation of Radiative Corrections to the Process of Muon-Electron Conversion

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dc.creatorDjilkibaev, Rashid M.
dc.creatorKonoplich, Rostislav V.
dc.date2009-02-14
dc.date.accessioned2026-07-07T12:42:04Z
dc.date.available2026-07-07T12:42:04Z
dc.descriptionIn detection of electrons from $μ\to e $ conversion process the monochromatic electron spectrum is transformed due to a photon emission and fluctuations of energy loss in a target. The selection criterion of $μ\to e (γ)$ conversion events is an electron momentum above the threshold momentum of 103.5 MeV/c, which corresponds to the maximum energy loss of 1.5 MeV. Radiative corrections including a virtual photon correction and soft photon emission below 1.5 MeV lead to a reduction by about 10% in the probability of $μ\to e $ conversion process calculated without radiative corrections. The soft photons emission below 1.5 MeV contributes to a change of electron spectrum from monoenergetic one at 105 MeV to a spectrum with a low energy tail for the process of $μ\to e (γ)$ conversion. However the effect of smearing of the initial momentum distribution due to the soft photon emission is small in comparison with a smearing due to energy loss fluctuations in a target. The average energy of soft photons emitted below 1.5 MeV is found to be 40 keV. The soft photon approximation is a good description for $μ\to e (γ)$ conversion process with photons emitted below 1.5 MeV.
dc.description16 pages, 8 figures
dc.identifierhttps://arxiv.org/abs/0902.2430
dc.identifierhttp://arxiv.org/abs/0902.2430
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/219954
dc.subjectHigh Energy Physics - Phenomenology
dc.titleEstimation of Radiative Corrections to the Process of Muon-Electron Conversion
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