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

Conference · Thu Jun 30 00:00:00 EDT 2005

OSTI ID:881136

Wu, Juhao; Raubenheimer, T O; Chao, A W; Seryi, A; Sramek, C K

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.

• Research Organization: Stanford Linear Accelerator Center (SLAC)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-76SF00515
• OSTI ID: 881136
• Report Number(s): SLAC-PUB-11272
• Conference Information: Contributed to Particle Accelerator Conference (PAC 05), Knoxville, Tennessee, 16-20 May 2005
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ACCELERATORS
Accelerators
ACCPHY
DILUTION
INSTABILITY
KINK INSTABILITY
LINEAR COLLIDERS
LUMINOSITY
PHASE SPACE
SIMULATION
WAVELENGTHS