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

Institut für Physik Humboldt-Universität zu Berlin 12489 Berlin Germany; Dipartimento di Fisica dell’Università di Bologna 40126 Bologna Italy; INFN, Sezione di Bologna 40126 Bologna Italy; Novosibirsk State University 630090 Novosibirsk Russia; Università di Parma Dipartimento di Fisica 43100 Parma Italy; INFN, Gruppo Collegato di Parma 43100 Parma Italy; Università di Pavia Dipartimento di Fisica Nucleare e Teorica 27100 Pavia Italy; Bergische Universität Wuppertal Fachbereich C 42097 Wuppertal Germany
European Physical Journal C (Impact Factor: 5.44). 12/2009; DOI: 10.1140/epjc/s10052-010-1251-4
Source: arXiv

ABSTRACT 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 tau 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 tau decays. The radiative corrections fully or approximately implemented in the various codes and the contribution of the vacuum polarisation are discussed. Comment: Report of the "Working Group on Radiative Corrections and Monte Carlo Generators for Low Energies"; 99 pages, submitted to EPJC

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