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Article
Open AccessMuon-electron scattering at NNLO
We present the first calculation of the complete set of NNLO QED corrections for muon-electron scattering. This includes leptonic, non-perturbative hadronic, and photonic contributions. All fermionic correctio...
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Article
Light-quark two-loop corrections to heavy-quark pair production in the gluon fusion channel
We calculate the two-loop corrections to heavy-quark pair production in the gluon fusion channel which arise from diagrams involving a closed light-quark loop. The calculation is carried out by kee** the exa...
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Article
Open AccessTwo-loop leading color corrections to heavy-quark pair production in the gluon fusion channel
We evaluate the two-loop QCD diagrams contributing to the leading color coefficient of the heavy-quark pair production cross section in the gluon fusion channel. We obtain an analytic expression, which is vali...
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Article
Quest for precision in hadronic cross sections at low energy: Monte Carlo tools vs. experimental data
We present the achievements of the last years of the experimental and theoretical groups working on hadronic cross section measurements at the low-energy e + e ...
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Article
Bounds on M W , M t , \(\sin^2 \theta_{\mathrm{{eff}}}^{\mathrm{{lept}}}\)
Assuming that the standard model is correct and taking into account the lower bound on M H from direct searches, we discuss bounds on M ...
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Article
The electroweak form factor \(\hat{\kappa}(q^2)\) and the running of \(\sin^2\hat{\theta}_{\mathrm {W}}\)
Gauge independent form factors \(\rho^{(e ; e)}\) and ...
