Depolarization effects in collisions of polarized e{sup +}e{sup -} beams

Journal Article · Sun Jan 01 04:00:00 EST 1995 · Physics of Atomic Nuclei

OSTI ID:81242

Kushnirenko, E A; Likhoded, A A; Shevlyagin, M V ^[1]

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1. Protvino Branch of the Institute of Nuclear Physics, Moscow (Russian Federation)

The dynamics of collisions of polarized e{sup +}e{sup {minus}} beams at energies and luminosities typical of the next-generation linear e{sup +}e{sup {minus}} collider VLEPP is discussed. It is demonstrated that, during their motion in the incident-bunch fields, the spins of electrons and positrons, initially polarized in a particular direction, are depolarized. Reliable data on the number of hadronic and leptonic events lead to an estimate of the magnitude of the depolarization effect at the level of a few percent. Because this value is comparable with the systematic and statistical errors expected in experiments using future e{sup +}e{sup {minus}} colliders, depolarization effects of this kind must be taken into account in experiments with polarized e{sup +}e{sup {minus}} beams. 12 refs., 2 tabs.

• OSTI ID: 81242
• Journal Information: Physics of Atomic Nuclei, Journal Name: Physics of Atomic Nuclei Journal Issue: 1 Vol. 58; ISSN 1063-7788; ISSN PANUEO
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
DEPOLARIZATION
ELECTRON-POSITRON COLLISIONS
LINEAR COLLIDERS
POLARIZED BEAMS