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Double-box contributions to Møller scattering in the Standard Model

  • A. G. Aleksejevs
  • S. G. Barkanova
  • Y. M. Bystritskiy
  • A. N. Ilyichev
  • E. A. Kuraev
  • V. A. Zykunov
Regular Article - Theoretical Physics

Abstract

The paper investigates contributions of γ, Z, W and ghost intermediate states of box-type to the parity-violating Møller scattering asymmetry up to two-loop level. Using the Yennie–Frautschi–Suura factorization form for amplitudes, we demonstrate that QED corrections, with an exception of vacuum-polarization effects, cancel at the asymmetry level. We obtain chiral amplitudes at Born, one-loop and partially at two-loop level: ladder boxes and decorated boxes. Our calculations are relevant for the ultra-precise 11 GeV MØLLER experiment planned at Jefferson Laboratory. The numerical comparison of the two-loop contributions with the experimental accuracy of MØLLER is provided.

Keywords

Radiative Correction Loop Momentum Electroweak Radiative Correction Hard Subprocess Chiral Amplitude 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgements

E.A.K. and Yu.M.B. acknowledge the financial support provided by the Russian Foundation for Basic Research (grant RFBR 11-02-00112-a). Yu.M.B. is grateful for the JINR Young Scientists 2011 grant. The work by A.G.A. and S.G.B. has been supported by the Natural Sciences and Engineering Research Council of Canada (NSERC). V.A.Z. is grateful for Belarus scientific program “Convergence”.

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Copyright information

© Springer-Verlag Berlin Heidelberg and Società Italiana di Fisica 2012

Authors and Affiliations

  • A. G. Aleksejevs
    • 1
  • S. G. Barkanova
    • 2
  • Y. M. Bystritskiy
    • 3
  • A. N. Ilyichev
    • 4
  • E. A. Kuraev
    • 3
  • V. A. Zykunov
    • 4
    • 5
  1. 1.Memorial UniversityCorner BrookCanada
  2. 2.Acadia UniversityWolfvilleCanada
  3. 3.Joint Institute for Nuclear ResearchDubnaRussia
  4. 4.National Center of Particle and High Energy Physics of Belarussian State UniversityMinskBelarus
  5. 5.Belarusian State University of TransportGomelBelarus

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