Lepton beam polarization at LEP

Journal Article · Fri Sep 01 04:00:00 EDT 1995 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.48860· OSTI ID:254044

Assmann, R ^[1]; Blondel, A ^[2]; Dehning, B; Drees, A; Grosse-Wiesmann, P; Grote, H ^[3]; Jacobsen, R ^[4]; Koutchouk, J; Miles, J; Placidi, M; Schmidt, R ^[3]; Tecker, F ^[5]; Wenninger, J ^[3]

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1. SLAC, Stanford Univ., P.O. Box 4349, California 94309 (United States)
2. Ecole Polytechnique, Paris (France)
3. CERN, CH-1211 Geneva 23 (Switzerland)
4. Dept. of Physics, U.C. Berkeley, California 94720 (United States)
5. Physikalisches Institut III A, RWTH Aachen (Germany)

Results from studies on transverse polarization in LEP over the past two years are presented. A single beam transverse polarization level of 57{percent} at 45 GeV was reached adopting strategies to compensate depolarizing effects originating in the four experimental solenoids and from orbit perturbations. Beam Energy Calibration was performed by Resonant Depolarization during the 1993 LEP Run for Physics at three different energies centered around the {ital Z} peak. The uncertainty on the beam energy was reduced to about 1 MeV, thus improving the accuracy on the {ital Z}-resonance mass and width with respect to previous results. Successful results obtained at the end of the 1994 LEP Run on polarization with colliding beams are reported and future plans outlined. {copyright} {ital 1995 American Institute of Physics.}

• Sponsoring Organization: USDOE
• OSTI ID: 254044
• Report Number(s): CONF-9409103--
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 343; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
66 PHYSICS
BEAM OPTICS
EFFICIENCY
ELECTRON BEAMS
GEV RANGE 10-100
LEP STORAGE RINGS
POLARIZED BEAMS
POSITRON BEAMS