Luminosity Loss due to Beam Distortion and the Beam-Beam Instability

In a linear collider, sources of emittance dilution such as transverse wakefields or dispersive errors will couple the vertical phase space to the longitudinal position within the beam (the so-called 'banana effect'). When the Intersection Point (IP) disruption parameter is large, these be...

Full description

Saved in:
Bibliographic Details
Main Authors: Wu, J., Raubenheimer, T.O., Chao, A.W., Seryi, A., Sramek, C.K.
Format: Conference Proceeding
Language:English
Subjects:
Chaos
Colliding beam devices
Dispersion
Electron beams
Equations
Numerical simulation
Optical coupling
Particle beams
Plasmas
Resonance
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In a linear collider, sources of emittance dilution such as transverse wakefields or dispersive errors will couple the vertical phase space to the longitudinal position within the beam (the so-called 'banana effect'). When the Intersection Point (IP) disruption parameter is large, these beam distortions will be amplified by a single bunch kink instability which will lead to luminosity loss. We study this phenomena both analytically using linear theory and via numerical simulation. In particular, we examine the dependence of the luminosity loss on the wavelength of the beam distortions and the disruption parameter. This analysis may prove useful when optimizing the vertical disruption parameter for luminosity operation with given beam distortions.
ISSN:1944-4680
2152-9582
DOI:10.1109/PAC.2005.1590844