Help us make Indico better by taking this survey! Aidez-nous à améliorer Indico en répondant à ce sondage !

24–28 Oct 2022
University of Santiago de Compostela
Europe/Madrid timezone

A new experiment to measure Parity violation in trapped chiral molecular ions

27 Oct 2022, 12:25
35m
Facultad de Ciencias de la Comunicación (University of Santiago de Compostela)

Facultad de Ciencias de la Comunicación

University of Santiago de Compostela

Campus Norte, Av. de Castelao, s/n, 15782 Santiago de Compostela, Spain
Oral Contribution Plenary Talks Plenary Talks

Speaker

Yuval Shagam (Technion)

Description

The weak interaction is predicted to give rise to slightly different structures for left and right-handed chiral molecules, contrary the common conception that enantiomers are perfect mirror images. The consequences range from the nulling of the tunnelling rate in chiral molecules to a possible seed of homo-chirality in the chemistry of life. We are building a new experiment aimed at observing parity violation (PV) in molecules for the first time. We will use charged chiral molecules which can be easily trapped and have unique pathways to prepare internally cold molecules. Toward our goal we have developed a novel method to differentially extract the PV signature from a racemic sample, overcoming the need to synthesize samples of a single handedness to be measured separately. The differential nature of the scheme enables common-mode noise rejection for signal of interest, optimizing the precision and minimizing susceptibility to systematic shifts.
This experiment may turn into a platform to test fundamental physics and search for beyond Standard Model physics.

[1] Itay Erez, Eliana Ruth Wallach and Yuval Shagam arXiv:2206.03699 (2022)

Primary author

Yuval Shagam (Technion)

Presentation materials