Title :
A low-energy ring lattice design for the PEP-N project
Author :
Biagini, M.E. ; Cai, Y. ; Seeman, J. ; Sullivan, M. ; Wienands, U. ; Placidi, M.
Author_Institution :
Linear Accel. Center, Stanford Univ., CA, USA
Abstract :
The PEP-N project at SLAC consists of a Very Low Energy small electron Ring (VLER) that will collide with the low-energy 3.1 GeV positron beam (LER) of PEP-II, producing center-of-mass energies between 1.1 GeV and the J/ψ. The beams will collide head-on and will be separated in the detector magnetic field which is part of the Interaction Region (IR). The IP β functions were chosen such as to optimize both luminosity and beam- beam tune shifts, while keeping the LER tune shifts small. This paper describes the lattice of the VLER for the ´baseline´ design at 500 MeV
Keywords :
accelerator magnets; colliding beam accelerators; electromagnets; electron accelerators; electron beams; particle beam bunching; particle beam dynamics; storage rings; 1.1 GeV; 3.1 GeV; 500 MeV; LER; PEP-II; PEP-N project; SLAC; VLER; beam-beam tune shifts; center-of-mass energies; detector magnetic field; head-on collision; interaction region; low-energy positron beam; low-energy ring lattice design; luminosity; very low energy small electron ring; Detectors; Electron beams; Energy measurement; Lattices; Magnetic fields; Mesons; Particle beam injection; Particle beam measurements; Particle beams; Storage rings;
Conference_Titel :
Particle Accelerator Conference, 2001. PAC 2001. Proceedings of the 2001
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-7191-7
DOI :
10.1109/PAC.2001.988170
