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Ion-lithium collision dynamics studied with a laser-cooled in-ring target.

D Fischer¹, D Globig, J Goullon

¹Max Planck Institute for Nuclear Physics, Saupfercheckweg 1, 69117 Heidelberg, Germany.

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|September 26, 2012

Summary

A new experimental tool, MOTReMi, combines a magneto-optical trap and reaction microscope for detailed studies of laser-cooled atom break-up. This enables precise investigation of swift ion-atom collision dynamics.

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Area of Science:

Atomic physics
Quantum mechanics
Collision dynamics

Background:

Studying atomic break-up processes requires advanced experimental techniques.
Swift ion-atom collisions are crucial for understanding fundamental interactions.

Purpose of the Study:

To introduce a novel experimental apparatus, MOTReMi, for kinematically complete studies of laser-cooled atom break-up.
To investigate the dynamics of swift ion-atom collisions with high precision.

Main Methods:

Combining a magneto-optical trap (MOT) with a reaction microscope (ReMi).
Operating the apparatus within an ion-storage ring.
Conducting experiments on O(8+)-Li collisions at 1.5 MeV/amu.

Main Results:

The MOTReMi enables kinematically complete measurements of atomic break-up.
The setup allows for unprecedented precision in studying collision dynamics.
Inaugural experiments investigated pure valence electron ionization and ionization-excitation of lithium.

Conclusions:

The MOTReMi is a powerful new tool for atomic collision research.
This apparatus opens new avenues for detailed investigations into atomic break-up processes.
Precise data on ionization and excitation in ion-atom collisions were obtained.