Target normal spin asymmetry and charge asymmetry for eμ elastic scattering and the crossed processes

E. A. Kuraev, V. V. Bytev, Yu. M. Bystritskiy, and E. Tomasi-Gustafsson
Phys. Rev. D 74, 013003 – Published 10 July 2006

Abstract

Two kinds of asymmetry arise from the interference of the Born amplitude and the box-type amplitude corresponding to two virtual photon exchange, namely, charge-odd and single-spin asymmetries. In the case of unpolarized particles the charge-odd correlation is calculated. It can be measured in a combination of electron-muon and positron-muon experiments. The forward-backward asymmetry is the corresponding quantity which can be measured for the crossed processes. In the case of a polarized muon the single-spin asymmetry for annihilation and scattering channels has been calculated. The additional structure function arising from the interference is shown to suffer from infrared divergencies. The background due to electroweak interaction is discussed.

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  • Received 9 February 2006

DOI:https://doi.org/10.1103/PhysRevD.74.013003

©2006 American Physical Society

Authors & Affiliations

E. A. Kuraev, V. V. Bytev, and Yu. M. Bystritskiy

  • JINR-BLTP, 141980 Dubna, Moscow region, Russian Federation

E. Tomasi-Gustafsson

  • DAPNIA/SPhN, CEA/Saclay, 91191 Gif-sur-Yvette Cedex, France

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Issue

Vol. 74, Iss. 1 — 1 July 2006

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