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TY - CONF
AU - Fartoukh, S.D.
AU - Shatilov, D.N.
AU - Valishev, A.
ED - Henderson, Stuart
ED - Akers, Evelyn
ED - Satogata, Todd
ED - Schaa, Volker R.W.
TI - An Alternative High Luminosity LHC with Flat Optics and Long-Range Beam-Beam Compensation
J2 - Proc. of IPAC2015, Richmond, VA, USA, May 3-8, 2015
C1 - Richmond, VA, USA
T2 - International Particle Accelerator Conference
T3 - 6
LA - english
AB - 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.
PB - JACoW
CP - Geneva, Switzerland
SP - 2199
EP - 2202
KW - luminosity
KW - optics
KW - beam-beam-effects
KW - simulation
KW - electron
DA - 2015/06
PY - 2015
SN - 978-3-95450-168-7
DO - 10.18429/JACoW-IPAC2015-TUPTY073
UR - http://jacow.org/ipac2015/papers/tupty073.pdf
ER -