Download or read book First Measurement of the Photon Structure Function F(2) with the ZEUS Detector written by Frank S. Chlebana and published by . This book was released on 1994 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis describes the methods and results of the first measurement of the proton structure function F2 by the ZEUS collaboration. The ZEUS detector is one of two large general purpose detectors at the electron-proton colliding facility HERA located at DESY in Hamburg Germany. HERA provides collisions of 26.6 GeV electrons with 820 GeV protons, resulting in a center of mass energy an order of magnitude higher than previous fixed target electron scattering experiments. The kinematics at HERA allows the measurement of F2 in a region o f x ana Q2 phase space previously unexplored. A total integrated luminosity of 24.7 nb-1, collected during the fall of 1992, was used for the measurement of F2. The results reported here extend the measurement of F2 to lower values of x by two orders of magnitude. In the parton model the behavior of F2 at low x is highly dependent on the unknown gluon distribution and the absence of data leads to significantly different expectations of the neutral current cross sections at low x. A measurement of F2 at low x constrains the gluon distribution. The results show a strong rise at low x.