EUCARD workshop "Spin optimization at Lepton accelerators"

Session

Spin-Optimization: Adjustment

Feb 13, 2014, 11:00 AM

Mainz

Conveners

Spin-Optimization: Adjustment

• Wolfgang Hillert

7. The spin dynamics simulation suite POLE

Mr Jan Schmidt (University of Bonn, Physics Institute, ELSA)

2/13/14, 11:00 AM

The new spin dynamics simulation suite POLE is designed to perform systematic studies of polarization in circular accelerators with fast energy ramps, or short storage times of up to some seconds. A main application is the investigation of crossing depolarizing resonances depending on arbitrary magnet and optics settings. For instance, many simulations of a single resonance crossing are...

13. Vector polarimetry at MAMI

Mr Fabian Nillius (Institut für Kernphysik)

2/13/14, 11:30 AM

Electron/photon tensor-correlation coefficients may allow to design a polarimeter that can measure all components of beam polarisation simultaneously ("vector polarimeter"). Besides its purpose as a beam diagnostic device this would also allow to test theoretical predictions for the correlation coefficients at energies between 1 and 3.5 MeV. As a first step we have set up a measurement of the...

14. Depolarisation at e+e- colliders due to strong fields at the interaction point

Dr Anthony Hartin (DESY)

2/13/14, 12:00 PM

Depolarisation of polarised collider beams, due to the strong electromagnetic fields of the bunch-bunch collision at the IP, is important to understand for the precision physics goals of future e+e- colliders. Beam parameters are generally chosen to maximise the collision luminosity whilst minimising non-linear effects from strong IP fields. Here it will be shown that luminosity can be further...