A novel molecular synchrotron for cold collision and EDM experiments.

Area of Science:

• Atomic, Molecular, and Optical Physics
• Chemical Physics

Background:

• Current molecular synchrotrons have limited segments, causing structural imperfections.
• These imperfections create stopbands, leading to the loss of molecules with specific velocities.

Purpose of the Study:

• To propose and analyze a stopband-free molecular synchrotron design.
• To demonstrate the capability of confining and manipulating molecular packets.

Main Methods:

• Design of a molecular synchrotron with 1570 ring electrodes for a near-perfect circular structure.
• Trajectory calculations using a pulsed (88)SrF molecular beam at 50 m/s.

Main Results:

• The proposed synchrotron nearly forms a perfect circle, eliminating stopbands.
• Molecular packets can be confined and manipulated (accelerated, decelerated, trapped).
• Simulations show a molecular beam completing over 500 round trips with a 6.2 s lifetime.

Conclusions:

• The stopband-free molecular synchrotron offers stable confinement for light and heavy polar molecules.
• Potential applications include low-energy collision/reaction experiments and precision measurements.
• The design is suitable for searches for electric dipole moments.