Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Measurement and QCD analysis of neutral and charged current cross sections at HERA.
AU - Adloff, C.
AU - Andreev, V.
AU - Andrieu, B.
AU - Anthonis, T.
AU - Astvatsatourov, A.
AU - Babaev, A.
AU - Bähr, J.
AU - Baranov, P.
AU - Barrelet, E.
AU - Bartel, W.
AU - Baumgartner, S.
AU - Becker, J.
AU - Beckingham, M.
AU - Beglarian, A.
AU - Behnke, O.
AU - Belousov, A.
AU - Berger, Ch.
AU - Berndt, T.
AU - Bizot, J.C.
AU - Böhme, J.
PY - 2003/9
Y1 - 2003/9
N2 - The inclusive e+p single and double differential cross sections for neutral and charged current processes are measured with the Hi detector at HERA. The data were taken in 1999 and 2000 at a centre- of-mass energy of √s 319 GeV and correspond to an integrated luminosity of 65.2 pb-1. The cross sections are measured in the range of four-momentum transfer squared Q² between 100 and 30000 GeV² and Bjorken x between 0.0013 and 0.65. The neutral current analysis for the new e+p data and the earlier e-p data taken in 1998 and 1999 is extended to small energies of the scattered electron and therefore to higher values of inelasticity y, allowing a determination of the longitudinal structure function FL at high Q² (110-700GeV²). A new measurement of the structure function xF3 is obtained using the new e+p and previously published e+p neutral current cross section data at high Q². These data together with Hi low Q² precision data are further used to perform new next-to-leading order QCD analyses in the framework of the Standard Model to extract flavour separated parton distributions in the proton. [ABSTRACT FROM AUTHOR]
AB - The inclusive e+p single and double differential cross sections for neutral and charged current processes are measured with the Hi detector at HERA. The data were taken in 1999 and 2000 at a centre- of-mass energy of √s 319 GeV and correspond to an integrated luminosity of 65.2 pb-1. The cross sections are measured in the range of four-momentum transfer squared Q² between 100 and 30000 GeV² and Bjorken x between 0.0013 and 0.65. The neutral current analysis for the new e+p data and the earlier e-p data taken in 1998 and 1999 is extended to small energies of the scattered electron and therefore to higher values of inelasticity y, allowing a determination of the longitudinal structure function FL at high Q² (110-700GeV²). A new measurement of the structure function xF3 is obtained using the new e+p and previously published e+p neutral current cross section data at high Q². These data together with Hi low Q² precision data are further used to perform new next-to-leading order QCD analyses in the framework of the Standard Model to extract flavour separated parton distributions in the proton. [ABSTRACT FROM AUTHOR]
U2 - 10.1140/epjc/s2003-01257-6
DO - 10.1140/epjc/s2003-01257-6
M3 - Journal article
VL - 30
SP - 1
EP - 32
JO - European Physical Journal C: Particles and Fields
JF - European Physical Journal C: Particles and Fields
SN - 1434-6044
IS - 1
ER -