arXiv subjects

M. Klein

Publications and source records attributed to M. Klein.

130 records · Page 8Linked to original sources

arXiv1996

Future Precision Measurements $F_2(x,Q^2)$, $α_S(Q^2)$ and $xg(x,Q^2)$ at HERA

The results are presented of a study of the accuracy one may achieve at HERA in measuring the strong coupling constant $α_s$ and the gluon distribution $xg(x,Q^{2})$ using future data of the structure function $F_{2}(x,Q^{2})$ which are estimated to be accurate at the few % level over the full accessible kinematic region down to $x \simeq 10^{-5}$ and up to $Q^{2} \simeq 50000 GeV^{2}$. The analysis includes simulated proton and deuteron data, and the effect of combining HERA data with fixed target data is discussed.

hep-ph↗

arXiv1996

Future Measurement of the Longitudinal Proton Structure Function at HERA

A study is presented of a possible future measurement of the longitudinal structure function $F_{L}(x,Q^{2})$ with different proton beam energies at HERA.

hep-ex↗

arXiv1996

Structure Functions in Deep Inelastic Scattering at HERA

An introduction and summary is given of the main results achieved by working group 1: Structure Functions in Deep Inelastic Scattering at HERA. The prospects were discussed of future measurements of the structure functions $F_{2}, F_{L}, xG_{3}, F_{2}^{Q\overline{Q}}$ and $F_π$ at HERA. The results represent a long term programme of experimentation with high luminosity, different lepton beam charges, proton and deuteron beams, allowing for precision measurements. The theoretical investigations focussed on QED corrections, higher order QCD corrections for different observables, resummation of small $x$ contributions, and the detailed understanding of NLO QCD evolution codes, to allow for a high precision analysis of the forthcoming deep inelastic data.

hep-ph↗

arXiv1996

On the Asymptotic Behaviour of F_2(x,Q^2)

We discuss how the proton structure function F2 is described in the HERA kinematic range by double asymptotic expressions for low x and large Q^2. From a NLO double asymptotic approximation of recent data from the H1 experiment at HERA we extract the strong coupling constant alpha_S(M^2_Z)=0.113+/-0.002(stat)+/-0.007(syst). The additional theoretical error can be as large as 0.007.

hep-ph↗