Quest for precision in hadronic cross sections at low energy: Monte Carlo tools vs. experimental data

By Stefano Actis, A. Arbuzov, G. Balossini, P. Beltrame, C. Bignamini, R. Bonciani, C. Calame, V. Cherepanov, Michal Czakon, H. Czyz and 46 more. 2009

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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− colliders in Beijing, Frascati, Ithaca, Novosibirsk, Stanford and Tsukuba and on τ decays. We sketch the prospects in these fields for the years to come. We emphasise the status and the precision of the Monte Carlo generators used to analyse the hadronic cross section measurements obtained as well with energy scans as with radiative return, to determine luminosities and τ decays. The radiative corrections fully or approximately implemented in the various codes and the contribution of the vacuum polarisation are discussed.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/8240112f37a0a382fd898794fea6557ba1717174

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Citations in the corpus

• First look at the physics case of TLEP (2013, background): “The exploitation of the full power of TLEP would require reducing δαem(mZ) by almost an order of magnitude, which will require significant improvements not only in lower-energy measurements of e+e− → hadrons, but also in the theoretical understanding of radiative corrections [74–77].”