Inclusive event-shape variables have been measured in the current region of the Breit frame for neutral current deep inelastic ep scattering using an integrated luminosity of 45.0 pb(-1) collected with the ZEUS detector at HERA. The variables studied included thrust, jet broadening and invariant jet mass. The kinematic range covered was 10 < Q(2) < 20 480 GeV(2) and 6 x 10(-4) < x < 0.6, where Q(2) is the virtuality of the exchanged boson and x is the Bjorken variable. The Q dependence of the shape variables has been used in conjunction with NLO perturbative calculations and the Dokshitzer-Webber non-perturbative corrections ('power corrections') to investigate the validity of this approach.

Measurement of event shapes in deep inelastic scattering at HERA

MONACO, Vincenzo;SACCHI, Roberto;SOLANO, Ada Maria;
2003-01-01

Abstract

Inclusive event-shape variables have been measured in the current region of the Breit frame for neutral current deep inelastic ep scattering using an integrated luminosity of 45.0 pb(-1) collected with the ZEUS detector at HERA. The variables studied included thrust, jet broadening and invariant jet mass. The kinematic range covered was 10 < Q(2) < 20 480 GeV(2) and 6 x 10(-4) < x < 0.6, where Q(2) is the virtuality of the exchanged boson and x is the Bjorken variable. The Q dependence of the shape variables has been used in conjunction with NLO perturbative calculations and the Dokshitzer-Webber non-perturbative corrections ('power corrections') to investigate the validity of this approach.
2003
27
531
545
http://dx.doi.org/10.1140/epjc/s2003-01148-x
ZEUS; CENTRAL TRACKING DETECTOR; ZEUS BARREL CALORIMETER; MONTE-CARLO GENERATOR; POWER CORRECTIONS; PARTON DISTRIBUTIONS; PROTON SCATTERING; MOMENTUM SPECTRA; CROSS-SECTIONS; BREIT FRAME; QCD
S. Chekanov;D. Krakauer;J. H. Loizides;S. Magill;B. Musgrave;J. Repond;R. Yoshida;M. C. K.;P. Antonioli;G. Bari;M. Basile;L. Bellagamba;D....espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/106511
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