One-loop electroweak corrections for polarized Moller scattering at different renormalization schemes and conditions

Details One-loop electroweak corrections for polarized Moller scattering at different renormalization schemes and conditions One-loop electroweak corrections for polarized Moller scattering at different renormalization schemes and conditions

2010-10-20

arxiv.org/abs/1010.4185v3

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages, 9 figures, extended analysis in CDR scheme

Scientific paper

Using two different approaches, we perform updated and detailed calculations of the complete one-loop (Next-to-Leading Order (NLO)) set of electroweak radiative corrections to the parity violating e- e- -> e- e- (gamma) scattering asymmetry. Our first approach, more classical, relies on calculations "by hand" with reasonable approximations. Our second approach relies on program packages FeynArts, FormCalc, LoopTools, and FORM. The detailed numerical analysis of the various contributions is provided for a wide range of energies relevant for the ultra-precise 11 GeV MOLLER experiment planned at the Jefferson Laboratory, as well as future experiments at the International Linear Collider (ILC). The numerical results obtained within the on-shell renormalization scheme using two different sets of renormalization conditions are in excellent agreement. We also calculate the total NLO correction in the Constrained Differential Renormalization (CDR) scheme. Analysis of the results, along with the increasing experimental precision, shows that it is feasible that the corrections at the Next-to-Next-to-Leading Order (NNLO) level may be important for the next generation of high-precision experiments.

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