Luminosity determination at HERA-B

作者:Abt I; Adams M; Agari M; Albrecht H; Aleksandrov A; Amaral V; Amorim A; Aplin S J; Aushev V; Bagaturia Y; Balagurav V; Bargiotti M; Barsukova O; Bastos J; Batista J; Bauer C; Bauer Th S; Belkov A; Belkov Ar; Belotelov I; Bertin A; Bobchenkov B; Boecker M; Bogatyrev A; Bohm G; Braeuer M; Bruinsma M; Bruschi M*; Buchholz P; Buran T; Carvalho J; Conde P; Cruse C; Dam M; Danielsen K M; Danilov M; De Castro S; Deppe H
来源:Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment , 2007, 582(2): 401-412.
DOI:10.1016/j.nima.2007.09.011

摘要

A detailed description of an original method used to measure the luminosity accumulated by the HERA-B experiment for a data sample taken during the 2002-2003 HERA running period is reported. We show that, with this method, a total luminosity measurement can be achieved with a typical precision, including overall systematic uncertainties, at a level of 5% or better. We also report evidence for the detection of delta-rays generated in the target and comment on the possible use of such delta rays to measure luminosity.