Simulation of Crab Waist Collisions in DAΦNE with KLOE-2 Interaction Region

Conference · Wed Jun 24 00:00:00 EDT 2015

OSTI ID:1254146

Zobov, M. ^[1]; Drago, A. ^[1]; Gallo, A. ^[1]; Milardi, C. ^[1]; Shatilov, D. ^[2]; Valishev, A. ^[3]

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1. Frascati
2. Novosibirsk, IYF
3. Fermilab

After the successful completion of the SIDDHARTA experiment run with crab waist collisions, the electron-positron collider DAΦNE has started routine operations for the KLOE-2 detector. The new interaction region also exploits the crab waist collision scheme, but features certain complications including the experimental detector solenoid, compensating anti-solenoids, and tilted quadrupole magnets. We have performed simulations of the beam-beam collisions in the collider taking into account the real DAΦNE nonlinear lattice. In particular, we have evaluated the effect of crab waist sextupoles and beam-beam interactions on the DAΦNE dynamical aperture and energy acceptance, and estimated the luminosity that can be potentially achieved with and without crab waist sextupoles in the present working conditions. A numerical analysis has been performed in order to propose possible steps for further luminosity increase in DAΦNE such as a better working point choice, crab sextupole strength optimization, correction of the phase advance between the sextupoles and the interaction region. The proposed change of the e⁻ ring working point was implemented and resulted in a significant performance increase.

• Research Organization: Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP)
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 1254146
• Report Number(s): FERMILAB-CONF-15-170-APC; IPAC-2015-MOPWA049; 1461074
• Country of Publication: United States
• Language: English

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