H. -J. Kreidel

H. -J. Kreidel
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H. -J. Kreidel

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Physics - Instrumentation and Detectors (1)
Physics - Accelerator Physics (1)

Publications Authored By H. -J. Kreidel

For the first time a vertically polarized electron beam has been used for physics experiments at MAMI in the energy range between 180 and 855 MeV. The beam-normal single-spin asymmetry $A_{\mathrm{n}}$, which is a direct probe of higher-order photon exchange beyond the first Born approximation, has been measured in the reaction $^{12}\mathrm C(\vec e,e')^{12}\mathrm C$. Vertical polarization orientation was necessary to measure this asymmetry with the existing experimental setup. Read More