The open archive for STFC research publications

Full Record Details

Persistent URL http://purl.org/net/epubs/work/32010831
Record Status Checked
Record Id 32010831
Title Analytical Approach to the Beam-Beam Interaction with the Hourglass Effect
Abstract The HL-LHC upgrade will allow higher luminosities to be reached in the LHC. To achieve higher luminosities the β-function at the IP is decreased, which in turn will result in the hourglass effect becoming more prominent as the transverse bunch sizes become comparable to the length of the bunch. This effect reduces the luminosity since not all particles in the bunch will collide at the minimum IP. The standard derivation of the electric and magnetic fields of the beam-beam interaction is that undertaken by Bassetti and Erskine. The derivation by Bassetti Erskine does not include a coupling between bunch planes. When the transverse bunch sizes are comparable to the length of the bunch the magnitude of the transverse kick will be dependent on the longitudinal position. Currently only numerical methods are available to evaluate this effect. Here a theoretical framework is outlined that provides an analytical approach to derive the electric field for the beam-beam interaction with a coupling between the transverse and longitudinal planes.
Organisation ASTeC , CI , STFC
Funding Information
Related Research Object(s):
Licence Information:
Language English (EN)
Type Details URI(s) Local file(s) Year
Paper In Conference Proceedings In 6th International Particle Accelerator Conference (IPAC'15), Richmond, VA, USA, 3-8 May 2015, (2015): 510-513. http://accelconf.…/papers/mopje082.pdf 2015