Proton and deuteron F2 structure functions in deep inelastic muon scattering

The structure functions F2p and F2d measured by deep inelastic muon scattering at incident energies of 90 and 280 GeV are presented. These measurements cover a large kinematic range, 0.006 less-than-or-equal-to x less-than-or-equal-to 0.6 and 0.5 less-than-or-equal-to Q2 less-than-or-equal-to 55 GeV2, and include the first precise data at small x, where large scaling violations are observed. The data agree with earlier results from SLAC and BCDMS but exhibit differences with respect to those of EMC-NA2. Extrapolations to small x of recent phenomenological parton distributions are shown to disagree with the present results.

Lettenström, Frans,1955-Physics Department, Freiburg University, Freiburg, Germany(Swepub:oru)fslm (författare)
Zetsche, FMax Planck Institut für Kernphysik, Heidelberg, Germany (författare)
Paul Scherrer Institute, Villigen, SwitzerlandPhysics Department, Freiburg University, Freiburg, Germany (creator_code:org_t)

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