| Title |
An Alternative High Luminosity LHC with Flat Optics and Long-Range Beam-Beam Compensation |
| Authors |
- S.D. Fartoukh
CERN, Geneva, Switzerland
- D.N. Shatilov
BINP SB RAS, Novosibirsk, Russia
- A. Valishevpresenter
Fermilab, Batavia, Illinois, USA
|
| Abstract |
In the baseline scenario of the High-Luminosity LHC (HL-LHC), the geometric loss of luminosity in the two high luminosity experiments due to collisions with a large crossing angle is recovered by tilting the bunches in the interaction region with the use of crab cavities. A possible backup scenario would rely on a reduced crossing angle together with flat optics (with different horizontal and vertical β^{*} values) for the preservation of luminosity performance. However, the reduction of crossing angle coupled with the flat optics significantly enhances the strength of long-range beam-beam interactions. This paper discusses the possibility to mitigate the long-range beam-beam effects by current bearing wire compensators (or e-lens). We develop a new HL-LHC parameter list and analyse it in terms of integrated luminosity performance as compared to the baseline. Further, we evaluate the operational scenarios using numerical simulations of single-particle dynamics with beam-beam effects.
|
| Funding |
Research supported by DOE via the US-LARP program and by EU FP7 HiLumi LHC - Grant Agreement 284404 |
| Paper |
download TUPTY073.PDF [1.062 MB / 4 pages] |
| Export |
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| Conference |
IPAC2015, Richmond, VA, USA |
| Series |
International Particle Accelerator Conference (6th) |
| Proceedings |
Link to full IPAC2015 Proccedings |
| Session |
Tuesday Posters (Tyler) |
| Date |
05-May-15 16:00–18:00 |
| Main Classification |
1: Circular and Linear Colliders |
| Sub Classification |
A01 - Hadron Colliders |
| Keywords |
luminosity, optics, beam-beam-effects, simulation, electron |
| Publisher |
JACoW, Geneva, Switzerland |
| Editors |
Stuart Henderson (ANL, Argonne, IL, USA); Evelyn Akers (Jlab, Newport News, VA, USA); Todd Satogata (JLab, Newport News, VA, USA); Volker R.W. Schaa (GSI, Darmstadt, Germany) |
| ISBN |
978-3-95450-168-7 |
| Published |
June 2015 |
| Copyright |
|
