Time evolution of ground motion-dependent depolarisation at linear colliders

  title={Time evolution of ground motion-dependent depolarisation at linear colliders},
  author={I.Bailey and C.Bartels and M.Beckmann and A.Hartin and C.Helebrant and D.Kaefer and J.List and G.Moortgat-Pick},
Future linear colliders plan to collide polarised beams and the planned physics reach requires knowledge of the state of polarisation as precisely as possible. The polarised beams can undergo depolarisation due to various mechanisms. In order to quantify the uncertainty due to depolarisation, spin tracking simulations in the International Linear Collider (ILC) Beam Delivery System (BDS) and at the Interaction Point (IP) have been performed. Spin tracking in the BDS was achieved using the BMAD… 
3 Citations

Figures and Tables from this paper

Spin transport and polarimetry in the beam delivery system of the international linear collider

Polarised electron and positron beams are key ingredients to the physics programme of future linear colliders. Due to the chiral nature of weak interactions in the Standard Model — and possibly

Spin tracking studies for polarimetry at the ILC

At the International Linear Collider (ILC), the beam polarization is planned to be measured with a yet unequalled precision of 0.25 % by two Compton polarimeters located 1.8 km upstream and 150 m

Strong field QED in lepton colliders and electron/laser interactions

Studies of strong field particle physics processes in electron/laser interactions and lepton collider interaction points are reviewed. These processes are defined by the high intensity of the



Depolarization and Beam-beam Effects at the Linear Collider

The clean environment of a lepton linear collider allows high-precision measurements for physics analyses. In order to exploit this potential, precise knowledge about the polarization state of the

Executive Summary of the Workshop on Polarisation and Beam Energy Measurements at the ILC

This note summarizes the results of the "Workshop on Polarisation and Beam Energy Measurements at the ILC", held at DESY (Zeuthen) April 9-11 2008. The topics for the workshop included (i) physics


In the Compact Linear Collider (CLIC), the 30GHz RF-power used to accelerate the main beam will be obtained by decelerating a drive beam. The stability of this high-intensity low-energy beam is

Ground Motion Studies and Modeling for the Interaction Region of a Linear Collider

Ground motion may be a limiting factor in the performance of future linear colliders. Cultural noise sources, an important component of ground motion, are discussed here, with data from the SLD

Description of a PLACET-compatible ground motion generator

Goals of ATF2 will be to provide nanometer size beams and sub-nanometer stability. To achieve it, simulations of feedback systems should be done based on realistic ground motion generators. A

Gnu Octave Manual

Proceedings of the Advanced QED methods for future colliders Workshop

  • J Phys Conf Series
  • 2009

BMAD Subroutine Library for Relativistic Charged-Particle Simulations