Author/Authors :
Abt، نويسنده , , Fady I. and Adams، نويسنده , , M. and Agari، نويسنده , , Tantely M. and Albrecht، نويسنده , , H. and Aleksandrov، نويسنده , , A. and Amaral، نويسنده , , R. V. S. Amorim، نويسنده , , A. C. Aplin، نويسنده , , S.J. and Aushev، نويسنده , , V. and Bagaturia، نويسنده , , Y. and Balagura، نويسنده , , V. and Bargiotti، نويسنده , , M. and Barsukova، نويسنده , , O. and Bastos، نويسنده , , J. and Batista، نويسنده , , J. and Bauer، نويسنده , , C. and B، نويسنده ,
Abstract :
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 δ -rays generated in the target and comment on the possible use of such delta rays to measure luminosity.
Keywords :
Delta rays , Proton nucleon collisions , Fixed target experiments , Luminosity determination
