Development of a Momentum Determined Electron Beam in the 1 -45 GeV Range

Details Development of a Momentum Determined Electron Beam in the 1 -45 GeV Range Development of a Momentum Determined Electron Beam in the 1 -45 GeV Range

2002-08-09

arxiv.org/abs/hep-ex/0208012v1

Nucl.Instrum.Meth. A510 (2003) 211-218

Physics

High Energy Physics

High Energy Physics - Experiment

12 pages, 8 figures; work done by the BTeV Electromagnetic Calorimeter group

Scientific paper

10.1016/S0168-9002(03)01860-6

A beam line for electrons with energies in the range of 1 to 45 GeV, low contamination of hadrons and muons and high intensity up to 10^6 per accelerator spill at 27 GeV was setup at U70 accelerator in Protvino, Russia. A beam tagging system based on drift chambers with 160 micron resolution was able to measure relative electron beam momentum precisely. The resolution sigma_p p was 0.13% at 45 GeV where multiple scattering is negligible. This test beam setup provided the possibility to study properties of lead tungstate crystals (PbWO_4) for the BTeV experiment at Fermilab.

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