Luminosity measurement in the ZEUS experiment

Citation
J. Andruszkow et al., Luminosity measurement in the ZEUS experiment, ACT PHY P B, 32(7-8), 2001, pp. 2025-2057
Citations number
27
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
ACTA PHYSICA POLONICA B
ISSN journal
0587-4254 → ACNP
Volume
32
Issue
7-8
Year of publication
2001
Pages
2025 - 2057
Database
ISI
SICI code
0587-4254(200107/08)32:7-8<2025:LMITZE>2.0.ZU;2-L
Abstract
A precision luminosity measurement in the ZEUS experiment at the HERA elect ron-proton collider is described, based on the data collected by the ZEUS l uminosity monitor in 1996. The method of the measurement relies on the dete ction of high-energy photons from the ep bremsstrahlung process. The large cross section of this process allows for the continuous and fast monitoring of the HERA luminosity as well as for the control of the electron beam ste ering and focusing. A 1% precision of the luminosity determination has been achieved. The luminosity monitor has been also extensively used for studyi ng quasi-real photoproduction, and radiative processes in deep inelastic sc attering.