Speaker
Dr
Peter Bussey
(Glasgow University)
Description
Several measurements performed by the ATLAS collaboration
are either useful to constrain the proton structure or are affected by
its associated uncertainties.
Measurements of the W+c production and the inclusive W and Z
differential cross sections are found to constrain the poorly known
strange-quark density at low x. Similarly, the ratio of W+/W-
production is found to constrain the valence quarks at low x. Drell-
Yan cross section measurements performed above and below the Z peak
region have a different sensitivity to parton flavour, parton momentum
fraction x and scale Q compared to measurements on the Z peak and can
also be used to constrain the photon content of the proton.
Measurements of the inclusive jet and photon cross sections are
standard candles and can be useful to constrain the medium and high x
gluon densities.
Precision electroweak studies performed by ATLAS can be limited by the
current knowledge on the proton structure. ...
Primary author
Dr
Peter Bussey
(Glasgow University)
