1.

Search for light gauge bosons of the dark sector at the Mainz microtron

By using electron scattering on tantalum targets we have measured the electroproduction cross section for electron positron pairs, which might be produced in the decay of a hypothetical A' particle that mediates the interaction between ordinary and dark matter.

COBISS.SI-ID: 2336100

2.

A chiral quark model for meson electroproduction in the S11 partial wave

We have used the formalism of coupled channels and the underlying quark model CBM (cloudy bag) to compute the electroproduction and scattering amplitudes for negative parity nucleon resonances.

COBISS.SI-ID: 2327396

3.

High-precision measurement of the proton elastic form factor ratio [mu]_pG_E/G_M at low Q^2

By using focal plane polarimetry we have measured the polarization components of elastically recoiled protons and thereby determined the ratio of the electric and magnetic form factors of the proton in the physically most relevant region of momentum transfers around 0.1 GeV2.

COBISS.SI-ID: 2370404