$\mathcal{O}({\alpha }^2{L}^2)$ radiative corrections to deep inelastic $ep$ scattering for different kinematical variables

Abstract

The QED radiative corrections are calculated in the leading log approximation up to $\mathcal{O}({\alpha }^2)$ for different definitions of the kinematical variables using jet measurement, the 'mixed' variables, the double angle method, and a measurement based on ${\theta }_e$ and $y_{JB}$. Higher order contributions due to exponentiation of soft radiation are included.

Comments: 13 pages LATEX + (7 figures eps,ps - uuencoded, appended), DESY 94-044