Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
1995-04-21
Phys.Lett.B353:578-588,1995
Physics
High Energy Physics
High Energy Physics - Experiment
16 pages, latex, 2 figures appended as uuencoded file
Scientific paper
10.1016/0370-2693(95)00611-N
A contact interaction analysis is presented to search for new phenomena beyond the Standard Model in deep inelastic $e^\pm p \rightarrow e^\pm \, hadrons$ scattering. The data are collected with the H1 detector at HERA and correspond to integrated luminosities of $0.909 \ {\rm pb}^{-1}$ and $2.947 \ {\rm pb}^{-1}$ for electron and positron beams, respectively. The differential cross sections $d\sigma / dQ^2$ are measured in the $Q^2$ range bet\-ween $160 \ \GeV^2$ and $20,000 \ \GeV^2$. The absence of any significant deviation from the Standard Model prediction is used to constrain the couplings and masses of new leptoquarks and to set limits on electron--quark compositeness scales and on the radius of light quarks.
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