Mainz 2017 – wissenschaftliches Programm

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MO: Fachverband Molekülphysik

MO 9: Posters 1: Dichroism, VUV and Xray, Clusters, and Cold Molecules

MO 9.6: Poster

Dienstag, 7. März 2017, 17:00–19:00, P OG1

Angle-resolved spectroscopy of electron emission by chiral molecules — •Daniel Roman Paul, Jan Dreismann, and Stefan Schippers — I. Physikalisches Institut, Justus-Liebig-Universität Gießen

In elementary particle physics chirality is of great importance, in particular for the weak interaction. According to the Vester-Ulbricht-hypothesis a symmetry breaking by the weak interaction might be a reason for homochirality of molecules of life. While chemical properties of chiral molecules are already well observed, the physical basis is still a topic of current research. In this context collision experiments can give insight into the electronic structure and electron dynamics of chiral molecules.

We use an ESA22 [1,2] electron spectrometer for angle- and energy-resolved electron spectroscopy. Electrons produced by the collision of spin-polarized electrons as well as circular polarized photons on a gas target are separated by energy via a combination of electrostatic fields and detected by 22 channel electron detectors.

We here report on electron collisions on methyl lactate (C₄H₈O₃). The resulting Auger spectra are compared with Auger spectra for oxygen and carbon dioxide, measured under similar conditions.

[1] Ricz et al., Phys. Rev. A 65, 042707 (2002)

[2] Ábrók et al. Nucl. Instr. Meth. Phys. Res. B 369 (2016) 24-28