DOI: 10.1140/epjc/s2002-01148-x
Measurement of event shapes in deep inelastic scattering at HERA
The ZEUS collaboration(Received: 13 November 2002 / Published online: 7 March 2003 )
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
collected with the ZEUS detector at HERA. The variables
studied included thrust, jet broadening and invariant jet mass. The
kinematic range covered was
and
, where
Q2 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.
© Società Italiana di Fisica, Springer-Verlag 2003
