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[en] A precision luminosity measurement in the ZEUS experiment at the HERA electron-proton collider is described, based on the data collected by the ZEUS luminosity monitor in 1996. The method of the measurement relies on the detection 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 steering and focusing. A 1% precision of the luminosity determination has been achieved. The luminosity monitor has been also extensively used for studying quasi-real photoproduction, and radiative processes in deep inelastic scattering. (orig.)
Source
Mar 2001; 31 p; ZEUS-NOTE--01-004(REV.); ISSN 0418-9833; 
; Available from TIB Hannover: RA 2999(01-041)
; Available from TIB Hannover: RA 2999(01-041)
[en] The PP2PP experiment is devoted to the proton-proton elastic scattering measurements at the Relativistic Heavy Ion Collider (RHIC) at the center-of-mass energies 50 < √s < 500 GeV and the four-momentum transfer 0.0004 ≤ abs( t) ≤ 1.3 GeV2 . The option of polarized proton beams offers a unique possibility to investigate the spin dependence of the proton elastic scattering in a systematic way. The energy dependence of the total and elastic cross section, the ratio of the real to imaginary part of the forward scattering amplitude, and the nuclear slope parameter will be studied. In the medium abs( t) region (abs( t ) ≤ 1.3 GeV2 ) the energy dependence of the dip structure in the elastic differential cross section will be measured. With polarized beams the measurement of spin dependent observables: the difference of the total cross sections as functions of the initial transverse spin states, the analyzing power and the double spin asymmetries will be used to map the s and t dependence of the proton helicity amplitudes. (author)
Journal
Acta Physica Polonica. Series B; ISSN 0587-4254; ; v. 33(6); p. 1671-1686
; v. 33(6); p. 1671-1686
[en] Published in summary form only
Journal
Verhandlungen der Deutschen Physikalischen Gesellschaft; ISSN 0420-0195; ; CODEN VDPEA; v. 23(5); p. T314
; CODEN VDPEA; v. 23(5); p. T314
No abstract available
Source
Brzezicka, B.; Dryzek, E.; Erbel, D.; Freindl, L.; Krygowska-Doniec, M.; Rybicka, M.; Sawicki, P.; Styczen, J.; Wojciechowski, J. (eds.); The Henryk Niewodniczanski Institute of Nuclear Physics, Cracow (Poland); 343 p; ISSN 1425-3763; ; 2000; p. 174; 4 refs, 1 fig
; 2000; p. 174; 4 refs, 1 fig
No abstract available
Source
Brzezicka, B.; Erbel, D.; Krygowska-Doniec, M.; Rybicka, M.; Styczen, J.; Zajac, W. (eds.); The Henryk Niewodniczanski Institute of Nuclear Physics, Cracow (Poland); 287 p; ISSN 1425-3763; ; 2001; p. 134; Available from Internet: http://www.ifj.edu.pl/reports/2001.html
; 2001; p. 134; Available from Internet: http://www.ifj.edu.pl/reports/2001.html
No abstract available
Source
Brzezicka, B.; Erbel, D.; Krygowska-Doniec, M.; Mazur, J.; Styczen, J.; Zajac, W. (eds.); The Henryk Niewodniczanski Institute of Nuclear Physics, Cracow (Poland); 297 p; ISSN 1425-3763; ; 2002; p. 137
; 2002; p. 137
[en] A precision luminosity measurement in the ZEUS experiment at the HERA electron-proton collider is described, based on the data collected by the ZEUS luminosity monitor in 1996. The method of the measurement relies on the detection 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 steering and focusing. A 1 % precision of the luminosity determination has been achieved. The luminosity monitor has been also extensively used for studying quasi-real photoproduction, and radiative processes in deep inelastic scattering. (author)
Journal
Acta Physica Polonica. Series B; ISSN 0587-4254; ; v. 32(7-8); p. 2025-2057
; v. 32(7-8); p. 2025-2057
No abstract available
Source
Zajac, W.; Brzezicka, B.; Erbel, D.; Krygowska-Doniec, M.; Mazur, J.; Styczen, J. (eds.); The Henryk Niewodniczanski Institute of Nuclear Physics, Cracow (Poland); 265 p; ISSN 1425-3763; ; 2003; p. 111; Available on http://www.ifj.edu.pl/ANNUAL/annual2002/AR2002.html; 1 ref., 1 fig.
; 2003; p. 111; Available on http://www.ifj.edu.pl/ANNUAL/annual2002/AR2002.html; 1 ref., 1 fig.
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