Measurement of the Luminosity in the ZEUS Experiment at HERA II

Adamczyk, L.; Galas, A.; Helbich, M.; Ren, Z.; Oliwa, K.; Kotarba, A.; Jurkiewicz, P.; Kisielewska, D.; Zawiejski, L.; Olkiewicz, K.; Sutiak, J.; Daniluk, W.; Lohmann, Wolfgang; Klein, U.; Wierba, W.; Sciulli, F.; Sztuk-Dambietz, J.; Ning, Y.; Przybycien, M.; Bold, T.; Buettner, C.; Drugakov, Vladimir; Chwastowski, J.; Paganis, S.; Gil, M.; Borzemski, P.; Figiel, J.; Suszycki, L.; Schneekloth, U.; Caldwell, A.; Pieron, J.; Stopa, P.; Eskreys, A.; Januschek, F.; Ruchlewicz, W.; Andruszkow, J.; Schmidke, W.

doi:10.1016/j.nima.2014.01.053

Journal Article/Internal Report

PUBDB-2015-01148

Measurement of the Luminosity in the ZEUS Experiment at HERA II

Adamczyk, L.>Extern* ; Andruszkow, J. ; Bold, T. ; Borzemski, P. ; Buettner, C. ; Caldwell, A. ; Chwastowski, J.>Extern* ; Daniluk, W. ; Drugakov, V.>Extern* ; Eskreys, A. ; Figiel, J. ; Galas, A. ; Gil, M. ; Helbich, M. ; Januschek, F. ; Jurkiewicz, P. ; Kisielewska, D.>Extern* ; Klein, U. ; Kotarba, A.DESY* ; Lohmann, W. (Corresponding author)DESY* ; Ning, Y. ; Oliwa, K.DESY* ; Olkiewicz, K. ; Paganis, S. ; Pieron, J. ; Przybycien, M. ; Ren, Z. ; Ruchlewicz, W. ; Schmidke, W.>Extern* ; Schneekloth, U.DESY* ; Sciulli, F. ; Stopa, P. ; Sztuk-Dambietz, J.>Extern*XFEL* ; Suszycki, L. ; Sutiak, J. ; Wierba, W.DESY* ; Zawiejski, L.

2014
North-Holland Publ. Co. Amsterdam

Nuclear instruments & methods in physics research / A 744, 80 - 90 (2014) [10.1016/j.nima.2014.01.053]

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Please use a persistent id in citations: doi:10.1016/j.nima.2014.01.053

Report No.: DESY-13-081; arXiv:1306.1391

Abstract: The luminosity in the ZEUS detector was measured using photons from electron bremsstrahlung. In 2001 the HERA collider was upgraded for operation at higher luminosity. At the same time the luminosity-measuring system of the ZEUS experiment was modified to tackle the expected higher photon rate and synchrotron radiation. The existing lead-scintillator calorimeter was equipped with radiation hard scintillator tiles and shielded against synchrotron radiation. In addition, a magnetic spectrometer was installed to measure the luminosity independently using photons converted in the beam-pipe exit window. The redundancy provided a reliable and robust luminosity determination with a systematic uncertainty of 1.7%. The experimental setup, the techniques used for luminosity determination and the estimate of the systematic uncertainty are reported.

Keyword(s): ZEUS experiment (LCSH) ; Luminosity measurement (LCSH) ; HERA collider (LCSH) ; luminosity: measurement methods ; electron: bremsstrahlung ; ZEUS ; synchrotron radiation: shielding ; scintillation counter ; magnetic spectrometer ; calorimeter ; bremsstrahlung: energy spectrum ; numerical calculations: Monte Carlo ; neutral current

Classification:

ddc:530

Note: OA; OA

Contributing Institute(s):

ZEUS Kollaboration (ZEUS)

Research Program(s):

Experiments at HERA (ZEUS) (POF2-511) (POF2-511)

Experiment(s):

HERA: ZEUS

Appears in the scientific report 2014

Database coverage:
Medline

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